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• CodePlex Daily Summary for Tuesday, July 02, 2013

  CodePlex Daily Summary for Tuesday, July 02, 2013Popular ReleasesMastersign.Expressions: Mastersign.Expressions v0.4.2: added support for if(<cond>, <true-part>, <false-part>) fixed multithreading issue with rand() improved demo applicationNB_Store - Free DotNetNuke Ecommerce Catalog Module: NB_Store v2.3.6 Rel0: v2.3.6 Is now DNN6 and DNN7 compatible Important : During update this install with overwrite the menu.xml setting, if you have changed this then make a backup before you upgrade and reapply your changes after the upgrade. Please view the following documentation if you are installing and configuring this module for the first time System Requirements Skill requirements Downloads and documents Step by step guide to a working store Please ask all questions in the Discussions tab. Document.Editor: 2013.26: What's new for Document.Editor 2013.26: New Insert Chart Improved User Interface Minor Bug Fix's, improvements and speed upsWsus Package Publisher: Release V1.2.1307.01: Fix an issue in the UI, approvals are not shown correctly in the 'Report' tabDirectX Tool Kit: July 2013: July 1, 2013 VS 2013 Preview projects added and updates for DirectXMath 3.05 vectorcall Added use of sRGB WIC metadata for JPEG, PNG, and TIFF SaveToWIC functions updated with new optional setCustomProps parameter and error check with optional targetFormatCore Server 2012 Powershell Script Hyper-v Manager: new_root.zip: Verison 1.0JSON Toolkit: JSON Toolkit 4.1.736: Improved strinfigy performance New serializing feature New anonymous type support in constructorsDotNetNuke® IFrame: IFrame 04.05.00: New DNN6/7 Manifest file and Azure Compatibility.VidCoder: 1.5.2 Beta: Fixed crash on presets with an invalid bitrate.Gardens Point LEX: Gardens Point LEX version 1.2.1: The main distribution is a zip file. This contains the binary executable, documentation, source code and the examples. ChangesVersion 1.2.1 has new facilities for defining and manipulating character classes. These changes make the construction of large Unicode character classes more convenient. The runtime code for performing automaton backup has been re-implemented, and is now faster for scanners that need backup. Source CodeThe distribution contains a complete VS2010 project for the appli...ZXMAK2: Version 2.7.5.7: - fix TZX emulation (Bruce Lee, Zynaps) - fix ATM 16 colors for border - add memory module PROFI 512K; add PROFI V03 rom image; fix PROFI 3.XX configTwitter image Downloader: Twitter Image Downloader 2 with Installer: Application file with Install shield and Dot Net 4.0 redistributableUltimate Music Tagger: Ultimate Music Tagger 1.0.0.0: First release of Ultimate Music TaggerBlackJumboDog: Ver5.9.2: 2013.06.28 Ver5.9.2 (1) ??????????(????SMTP?????)?????????? (2) HTTPS???????????Outlook 2013 Add-In: Configuration Form: This new version includes the following changes: - Refactored code a bit. - Removing configuration from main form to gain more space to display items. - Moved configuration to separate form. You can click the little "gear" icon to access the configuration form (still very simple). - Added option to show past day appointments from the selected day (previous in time, that is). - Added some tooltips. You will have to uninstall the previous version (add/remove programs) if you had installed it ...Terminals: Version 3.0 - Release: Changes since version 2.0:Choose 100% portable or installed version Removed connection warning when running RDP 8 (Windows 8) client Fixed Active directory search Extended Active directory search by LDAP filters Fixed single instance mode when running on Windows Terminal server Merged usage of Tags and Groups Added columns sorting option in tables No UAC prompts on Windows 7 Completely new file persistence data layer New MS SQL persistence layer (Store data in SQL database)...NuGet: NuGet 2.6: Released June 26, 2013. Release notes: http://docs.nuget.org/docs/release-notes/nuget-2.6Python Tools for Visual Studio: 2.0 Beta: We’re pleased to announce the release of Python Tools for Visual Studio 2.0 Beta. Python Tools for Visual Studio (PTVS) is an open-source plug-in for Visual Studio which supports programming with the Python language. PTVS supports a broad range of features including CPython/IronPython, Edit/Intellisense/Debug/Profile, Cloud, HPC, IPython, and cross platform debugging support. For a quick overview of the general IDE experience, please watch this video: http://www.youtube.com/watch?v=TuewiStN...Player Framework by Microsoft: Player Framework for Windows 8 and WP8 (v1.3 beta): Preview: New MPEG DASH adaptive streaming plugin for Windows Azure Media Services Preview: New Ultraviolet CFF plugin. Preview: New WP7 version with WP8 compatibility. (source code only) Source code is now available via CodePlex Git Misc bug fixes and improvements: WP8 only: Added optional fullscreen and mute buttons to default xaml JS only: protecting currentTime from returning infinity. Some videos would cause currentTime to be infinity which could cause errors in plugins expectin...AssaultCube Reloaded: 2.5.8: SERVER OWNERS: note that the default maprot has changed once again. Linux has Ubuntu 11.10 32-bit precompiled binaries and Ubuntu 10.10 64-bit precompiled binaries, but you can compile your own as it also contains the source. If you are using Mac or other operating systems, please wait while we continue to try to package for those OSes. Or better yet, try to compile it. If it fails, download a virtual machine. The server pack is ready for both Windows and Linux, but you might need to compi...New ProjectsALM Rangers DevOps Tooling and Guidance: Practical tooling and guidance that will enable teams to realize a faster deployment based on continuous feedback.Core Server 2012 Powershell Script Hyper-v Manager: Free core Server 2012 powershell scripts and batch files that replace the non-existent hyper-v manager, vmconnect and mstsc.Enhanced Deployment Service (EDS): EDS is a web service based utility designed to extend the deployment capabilities of administrators with the Microsoft Deployment Toolkit.ExtendedDialogBox: Libreria DialogBoxJazdy: This project is here only because we wanted to take advantage of a public git server.Mon Examen: This web interface is meant to make examinationsneet: summaryOrchard Multi-Choice Voting: A multiple choice voting Orchard module.Particle Swarm Optimization Solving Quadratic Assignment Problem: This project is submitted for the solving of QAP using PSO algorithms with addition of some modification Porjects: 23123123PPL Power Pack: PPL Power PackProperty Builder: Visual Studio tool for speeding up process of coding class properties getters and setters.RedRuler for Redline: I tried some on-screen rulers, none of them help me measure the UI element quickly based on the Redline. So I decided to created this handy RedRuler tool. Royale Living: Mahindra Royale Community PortalSearch and booking Hotel or Tours: Ð? án nghiên c?u c?a sinh viên tdt theo mô hình mvc 4SystemBuilder.Show: This tool is a helper after you create your project in visual studio to create the respective objects and interface. TalentDesk: new ptojectTcmplex: The Training Center teaches many different kind of course such as English, French, Computer hardware and computer softwareTFS Reporting Guide: Provides guidance and samples to enable TFS users to generate reports based on WIT data.Umbraco AdaptiveImages: Adaptive Images Package for UmbracoVirtualNet - A ILcode interpreter/emulator written in C++/Assembly: VirtualNet is a interpreter/emulator for running .net code in native without having to install the .Net FrameWorkVisual Blocks: Visual Blocks ????IDE ????? ??????? ????? ????/?? Visual Studio and Cloud Based Mobile Device Testing: Practical guidance enabling field to remove blockers to adoption and to use and extend the Perfecto Mobile Cloud Device testing within the context of VS.Windows 8 Time Picker for Windows Phone: A Windows Phone implementation of the Time Picker control found in the Windows 8.1 Alarms app.???? - SmallBasic?: ?????????

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• How to make creating viewmodels at runtime less painful

  - by Mr Happy

  I apologize for the long question, it reads a bit as a rant, but I promise it's not! I've summarized my question(s) below In the MVC world, things are straightforward. The Model has state, the View shows the Model, and the Controller does stuff to/with the Model (basically), a controller has no state. To do stuff the Controller has some dependencies on web services, repository, the lot. When you instantiate a controller you care about supplying those dependencies, nothing else. When you execute an action (method on Controller), you use those dependencies to retrieve or update the Model or calling some other domain service. If there's any context, say like some user wants to see the details of a particular item, you pass the Id of that item as parameter to the Action. Nowhere in the Controller is there any reference to any state. So far so good. Enter MVVM. I love WPF, I love data binding. I love frameworks that make data binding to ViewModels even easier (using Caliburn Micro a.t.m.). I feel things are less straightforward in this world though. Let's do the exercise again: the Model has state, the View shows the ViewModel, and the ViewModel does stuff to/with the Model (basically), a ViewModel does have state! (to clarify; maybe it delegates all the properties to one or more Models, but that means it must have a reference to the model one way or another, which is state in itself) To do stuff the ViewModel has some dependencies on web services, repository, the lot. When you instantiate a ViewModel you care about supplying those dependencies, but also the state. And this, ladies and gentlemen, annoys me to no end. Whenever you need to instantiate a ProductDetailsViewModel from the ProductSearchViewModel (from which you called the ProductSearchWebService which in turn returned IEnumerable<ProductDTO>, everybody still with me?), you can do one of these things: call new ProductDetailsViewModel(productDTO, _shoppingCartWebService /* dependcy */);, this is bad, imagine 3 more dependencies, this means the ProductSearchViewModel needs to take on those dependencies as well. Also changing the constructor is painful. call _myInjectedProductDetailsViewModelFactory.Create().Initialize(productDTO);, the factory is just a Func, they are easily generated by most IoC frameworks. I think this is bad because Init methods are a leaky abstraction. You also can't use the readonly keyword for fields that are set in the Init method. I'm sure there are a few more reasons. call _myInjectedProductDetailsViewModelAbstractFactory.Create(productDTO); So... this is the pattern (abstract factory) that is usually recommended for this type of problem. I though it was genius since it satisfies my craving for static typing, until I actually started using it. The amount of boilerplate code is I think too much (you know, apart from the ridiculous variable names I get use). For each ViewModel that needs runtime parameters you'll get two extra files (factory interface and implementation), and you need to type the non-runtime dependencies like 4 extra times. And each time the dependencies change, you get to change it in the factory as well. It feels like I don't even use a DI container anymore. (I think Castle Windsor has some kind of solution for this [with it's own drawbacks, correct me if I'm wrong]). do something with anonymous types or dictionary. I like my static typing. So, yeah. Mixing state and behavior in this way creates a problem which don't exist at all in MVC. And I feel like there currently isn't a really adequate solution for this problem. Now I'd like to observe some things: People actually use MVVM. So they either don't care about all of the above, or they have some brilliant other solution. I haven't found an in-depth example of MVVM with WPF. For example, the NDDD-sample project immensely helped me understand some DDD concepts. I'd really like it if someone could point me in the direction of something similar for MVVM/WPF. Maybe I'm doing MVVM all wrong and I should turn my design upside down. Maybe I shouldn't have this problem at all. Well I know other people have asked the same question so I think I'm not the only one. To summarize Am I correct to conclude that having the ViewModel being an integration point for both state and behavior is the reason for some difficulties with the MVVM pattern as a whole? Is using the abstract factory pattern the only/best way to instantiate a ViewModel in a statically typed way? Is there something like an in depth reference implementation available? Is having a lot of ViewModels with both state/behavior a design smell?

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• MVVM - how to make creating viewmodels at runtime less painfull

  - by Mr Happy

  I apologize for the long question, it reads a bit as a rant, but I promise it's not! I've summarized my question(s) below In the MVC world, things are straightforward. The Model has state, the View shows the Model, and the Controller does stuff to/with the Model (basically), a controller has no state. To do stuff the Controller has some dependencies on web services, repository, the lot. When you instantiate a controller you care about supplying those dependencies, nothing else. When you execute an action (method on Controller), you use those dependencies to retrieve or update the Model or calling some other domain service. If there's any context, say like some user wants to see the details of a particular item, you pass the Id of that item as parameter to the Action. Nowhere in the Controller is there any reference to any state. So far so good. Enter MVVM. I love WPF, I love data binding. I love frameworks that make data binding to ViewModels even easier (using Caliburn Micro a.t.m.). I feel things are less straightforward in this world though. Let's do the exercise again: the Model has state, the View shows the ViewModel, and the ViewModel does stuff to/with the Model (basically), a ViewModel does have state! (to clarify; maybe it delegates all the properties to one or more Models, but that means it must have a reference to the model one way or another, which is state in itself) To do stuff the ViewModel has some dependencies on web services, repository, the lot. When you instantiate a ViewModel you care about supplying those dependencies, but also the state. And this, ladies and gentlemen, annoys me to no end. Whenever you need to instantiate a ProductDetailsViewModel from the ProductSearchViewModel (from which you called the ProductSearchWebService which in turn returned IEnumerable<ProductDTO>, everybody still with me?), you can do one of these things: call new ProductDetailsViewModel(productDTO, _shoppingCartWebService /* dependcy */);, this is bad, imagine 3 more dependencies, this means the ProductSearchViewModel needs to take on those dependencies as well. Also changing the constructor is painfull. call _myInjectedProductDetailsViewModelFactory.Create().Initialize(productDTO);, the factory is just a Func, they are easily generated by most IoC frameworks. I think this is bad because Init methods are a leaky abstraction. You also can't use the readonly keyword for fields that are set in the Init method. I'm sure there are a few more reasons. call _myInjectedProductDetailsViewModelAbstractFactory.Create(productDTO); So... this is the pattern (abstract factory) that is usually recommended for this type of problem. I though it was genious since it satisfies my craving for static typing, until I actually started using it. The amount of boilerplate code is I think too much (you know, apart from the ridiculous variable names I get use). For each ViewModel that needs runtime parameters you'll get two extra files (factory interface and implementation), and you need to type the non-runtime dependencies like 4 extra times. And each time the dependencies change, you get to change it in the factory as well. It feels like I don't even use an DI container anymore. (I think Castle Windsor has some kind of solution for this [with it's own drawbacks, correct me if I'm wrong]). do something with anonymous types or dictionary. I like my static typing. So, yeah. Mixing state and behavior in this way creates a problem which don't exist at all in MVC. And I feel like there currently isn't a really adequate solution for this problem. Now I'd like to observe some things: People actually use MVVM. So they either don't care about all of the above, or they have some brilliant other solution. I haven't found an indepth example of MVVM with WPF. For example, the NDDD-sample project immensely helped me understand some DDD concepts. I'd really like it if someone could point me in the direction of something similar for MVVM/WPF. Maybe I'm doing MVVM all wrong and I should turn my design upside down. Maybe I shouldn't have this problem at all. Well I know other people have asked the same question so I think I'm not the only one. To summarize Am I correct to conclude that having the ViewModel being an integration point for both state and behavior is the reason for some difficulties with the MVVM pattern as a whole? Is using the abstract factory pattern the only/best way to instantiate a ViewModel in a statically typed way? Is there something like an in depth reference implementation available? Is having a lot of ViewModels with both state/behavior a design smell?

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• How to make creating viewmodels at runtime less painfull

  - by Mr Happy

  I apologize for the long question, it reads a bit as a rant, but I promise it's not! I've summarized my question(s) below In the MVC world, things are straightforward. The Model has state, the View shows the Model, and the Controller does stuff to/with the Model (basically), a controller has no state. To do stuff the Controller has some dependencies on web services, repository, the lot. When you instantiate a controller you care about supplying those dependencies, nothing else. When you execute an action (method on Controller), you use those dependencies to retrieve or update the Model or calling some other domain service. If there's any context, say like some user wants to see the details of a particular item, you pass the Id of that item as parameter to the Action. Nowhere in the Controller is there any reference to any state. So far so good. Enter MVVM. I love WPF, I love data binding. I love frameworks that make data binding to ViewModels even easier (using Caliburn Micro a.t.m.). I feel things are less straightforward in this world though. Let's do the exercise again: the Model has state, the View shows the ViewModel, and the ViewModel does stuff to/with the Model (basically), a ViewModel does have state! (to clarify; maybe it delegates all the properties to one or more Models, but that means it must have a reference to the model one way or another, which is state in itself) To do stuff the ViewModel has some dependencies on web services, repository, the lot. When you instantiate a ViewModel you care about supplying those dependencies, but also the state. And this, ladies and gentlemen, annoys me to no end. Whenever you need to instantiate a ProductDetailsViewModel from the ProductSearchViewModel (from which you called the ProductSearchWebService which in turn returned IEnumerable<ProductDTO>, everybody still with me?), you can do one of these things: call new ProductDetailsViewModel(productDTO, _shoppingCartWebService /* dependcy */);, this is bad, imagine 3 more dependencies, this means the ProductSearchViewModel needs to take on those dependencies as well. Also changing the constructor is painfull. call _myInjectedProductDetailsViewModelFactory.Create().Initialize(productDTO);, the factory is just a Func, they are easily generated by most IoC frameworks. I think this is bad because Init methods are a leaky abstraction. You also can't use the readonly keyword for fields that are set in the Init method. I'm sure there are a few more reasons. call _myInjectedProductDetailsViewModelAbstractFactory.Create(productDTO); So... this is the pattern (abstract factory) that is usually recommended for this type of problem. I though it was genious since it satisfies my craving for static typing, until I actually started using it. The amount of boilerplate code is I think too much (you know, apart from the ridiculous variable names I get use). For each ViewModel that needs runtime parameters you'll get two extra files (factory interface and implementation), and you need to type the non-runtime dependencies like 4 extra times. And each time the dependencies change, you get to change it in the factory as well. It feels like I don't even use an DI container anymore. (I think Castle Windsor has some kind of solution for this [with it's own drawbacks, correct me if I'm wrong]). do something with anonymous types or dictionary. I like my static typing. So, yeah. Mixing state and behavior in this way creates a problem which don't exist at all in MVC. And I feel like there currently isn't a really adequate solution for this problem. Now I'd like to observe some things: People actually use MVVM. So they either don't care about all of the above, or they have some brilliant other solution. I haven't found an indepth example of MVVM with WPF. For example, the NDDD-sample project immensely helped me understand some DDD concepts. I'd really like it if someone could point me in the direction of something similar for MVVM/WPF. Maybe I'm doing MVVM all wrong and I should turn my design upside down. Maybe I shouldn't have this problem at all. Well I know other people have asked the same question so I think I'm not the only one. To summarize Am I correct to conclude that having the ViewModel being an integration point for both state and behavior is the reason for some difficulties with the MVVM pattern as a whole? Is using the abstract factory pattern the only/best way to instantiate a ViewModel in a statically typed way? Is there something like an in depth reference implementation available? Is having a lot of ViewModels with both state/behavior a design smell?

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• Failling install Ralink RT5592 driver on Ubuntu 14.04 LTS

  - by atisou

  My problem concerns the installation of a wi-fi driver (RT5592) for my new wi-fi adapter (PCE-N53) on my newly built computer. Basically, I don't manage to get the driver installed and therefore I cannot get the wifi to work. I know I am not the only one having this issue this year, between RT5592 driver and Ubuntu 14.04 LTS, in one way or the other. Is there anybody who has ever been able to fix this problem? It does not look like on all the posts I have been through... Following an answer to a same problem as mine (I was getting the same error message as Christopher Kyle Horton of "incompatible types" etc), I have applied the instructions and done the editings in a script as suggested by Paul B. Unfortunately I still do get error/warnings message (a different one this time) at the end of the make and the wi-fi still does not work. Below is a snapshot of the end of the message: In file included from /home/username/Downloads/PCE-N53/Linux/DPO_GPL_RT5592STA_LinuxSTA_v2.6.0.0_20120326/include/os/rt_linux.h:31:0, from /home/username/Downloads/PCE-N53/Linux/DPO_GPL_RT5592STA_LinuxSTA_v2.6.0.0_20120326/include/rtmp_os.h:44, from /home/username/Downloads/PCE-N53/Linux/DPO_GPL_RT5592STA_LinuxSTA_v2.6.0.0_20120326/include/rtmp_comm.h:69, from /home/username/Downloads/PCE-N53/Linux/DPO_GPL_RT5592STA_LinuxSTA_v2.6.0.0_20120326/os/linux/../../os/linux/pci_main_dev.c:31: include/linux/module.h:88:32: error: ‘__mod_pci_device_table’ aliased to undefined symbol ‘rt2860_pci_tbl’ extern const struct gtype##_id __mod_##gtype##_table \ ^ include/linux/module.h:146:3: note: in expansion of macro ‘MODULE_GENERIC_TABLE’ MODULE_GENERIC_TABLE(type##_device,name) ^ /home/username/Downloads/PCE-N53/Linux/DPO_GPL_RT5592STA_LinuxSTA_v2.6.0.0_20120326/os/linux/../../os/linux/pci_main_dev.c:73:1: note: in expansion of macro ‘MODULE_DEVICE_TABLE’ MODULE_DEVICE_TABLE(pci, rt2860_pci_tbl); ^ cc1: some warnings being treated as errors make[2]: *** [/home/username/Downloads/PCE-N53/Linux/DPO_GPL_RT5592STA_LinuxSTA_v2.6.0.0_20120326/os/linux/../../os/linux/pci_main_dev.o] Error 1 make[1]: *** [_module_/home/username/Downloads/PCE-N53/Linux/DPO_GPL_RT5592STA_LinuxSTA_v2.6.0.0_20120326/os/linux] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.13.0-32-generic' make: *** [LINUX] Error 2 The full pastebin data: paste.ubuntu.com/8088834/ It looks from the message that one would need to edit manually some of/other scripts in the driver package, as did Paul B suggest in one case. But I have no idea how to do that. Here is the driver package of the wifi adapter: www.asus.com/uk/Networking/PCEN53/HelpDesk_Download/ My system is as following: OS: ubuntu 14.04 LTS wi-fi card: Asus PCE-N53 motherboard: Asus KCMA-D8 processor: AMD Opteron 4228 HE kernel: 3.13.0-32-generic Following this info from chili555 in here, below are some extra info about my system: lspci -nn | grep 0280 gives 04:00.0 Network controller [0280]: Ralink corp. RT5592 PCI2 Wireless Network Adapater [1814:5592] and sudo apt-get install linux-headers-generic returns linux-headers-generic is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. If this is a kernel version (I have 3.13.0-32-generic) incompatibility issue with the driver as chilli555 suggests (the README file in the driver package says indeed it is compatible with kernel 2.6), how could one trick this around to make it work? that should be possible right? On ubuntu forums, the patches proposed dont work (leads the computer to freeze). Basically: is there anybody out there who has ever been able to make a PCE-N53 work on Ubuntu 14.04 LTS (kernel 3.13)? how shall I edit the driver package to make it work for my kernel?

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• Windows Azure PowerShell for Node.js

  - by shiju

  The Windows Azure PowerShell for Node.js is a command-line tool that  allows the Node developers to build and deploy Node.js apps in Windows Azure using Windows PowerShell cmdlets. Using Windows Azure PowerShell for Node.js, you can develop, test, deploy and manage Node based hosted service in Windows Azure. For getting the PowerShell for Node.js, click All Programs, Windows Azure SDK Node.js and run  Windows Azure PowerShell for Node.js, as Administrator. The followings are the few PowerShell cmdlets that lets you to work with Node.js apps in Windows Azure Create New Hosted Service New-AzureService <HostedServiceName> The below cmdlet will created a Windows Aazure hosted service named NodeOnAzure in the folder C:\nodejs and this will also create ServiceConfiguration.Cloud.cscfg, ServiceConfiguration.Local.cscfg and ServiceDefinition.csdef and deploymentSettings.json files for the hosted service. PS C:\nodejs> New-AzureService NodeOnAzure The below picture shows the files after creating the hosted service Create Web Role Add-AzureNodeWebRole <RoleName> The following cmdlet will create a hosted service named MyNodeApp along with web.config file. PS C:\nodejs\NodeOnAzure> Add-AzureNodeWebRole MyNodeApp The below picture shows the files after creating the web role app. Install Node Module npm install <NodeModule> The following command will install Node Module Express onto your web role app. PS C:\nodejs\NodeOnAzure\MyNodeApp> npm install Express Run Windows Azure Apps Locally in the Emulator Start-AzureEmulator -launch The following cmdlet will create a local package and run Windows Azure app locally in the emulator PS C:\nodejs\NodeOnAzure\MyNodeApp> Start-AzureEmulator -launch Stop Windows Azure Emulator Stop-AzureEmulator The following cmdlet will stop your Windows Azure in the emulator. PS C:\nodejs\NodeOnAzure\MyNodeApp> Stop-AzureEmulator Download Windows Azure Publishing Settings Get-AzurePublishSettings The following cmdlet will redirect to Windows Azure portal where we can download Windows Azure publish settings PS C:\nodejs\NodeOnAzure\MyNodeApp> Get-AzurePublishSettings Import Windows Azure Publishing Settings Import-AzurePublishSettings <Location of .publishSettings file> The following cmdlet will import the publish settings file from the location c:\nodejs PS C:\nodejs\NodeOnAzure\MyNodeApp>  Import-AzurePublishSettings c:\nodejs\shijuvar.publishSettings Publish Apps to Windows Azure Publish-AzureService –name <Name> –location <Location of Data centre> The following cmdlet will publish the app to Windows Azure with name “NodeOnAzure” in the location Southeast Asia. Please keep in mind that the service name should be unique. PS C:\nodejs\NodeOnAzure\MyNodeApp> Publish-AzureService –name NodeonAzure –location "Southeast Asia” –launch Stop Windows Azure Service Stop-AzureService The following cmdlet will stop your service which you have deployed previously. PS C:\nodejs\NodeOnAzure\MyNodeApp> Stop-AzureService Remove Windows Azure Service Remove-AzureService The following cmdlet will remove your service from Windows Azure. PS C:\nodejs\NodeOnAzure\MyNodeApp> Remove-AzureService Quick Summary for PowerShell cmdlets Create  a new Hosted Service New-AzureService <HostedServiceName> Create a Web Role Add-AzureNodeWebRole <RoleName> Install Node Module npm install <NodeModule> Running Windows Azure Apps Locally in Emulator Start-AzureEmulator -launch Stop Windows Azure Emulator Stop-AzureEmulator Download Windows Azure Publishing Settings Get-AzurePublishSettings Import Windows Azure Publishing Settings Import-AzurePublishSettings <Location of .publishSettings file> Publish Apps to Windows Azure Publish-AzureService –name <Name> –location <Location of Data centre> Stop Windows Azure Service Stop-AzureService Remove Windows Azure Service Remove-AzureService

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• problem with network-manager-pptp

  - by Riuzaki90

  I've a problema with the VPA CAble connection of my university... on the website of the university there's a .sh file that set all the variables of the connection in ETC/PPP/PEERS and another .sh file that call the connection...I'm on ubuntu 11.10 and when I run the setup.sh I have this error: impossible to find network-manager-pptp these are the two file that I had talk about: #!/bin/bash echo "Creazione della connessione in corso attendere........." apt-get update apt-get install pptp-linux network-manager-pptp echo -n "Digitare la propria Username: " read USERNAME echo -n "Digitare la propria Password: " read PASSWORD pptpsetup --create UNICAL_Campus_Access --server 160.97.73.253 --username $USERNAME --password $PASSWORD echo 'pty "pptp 160.97.73.253 --nolaunchpppd"' >/etc/ppp/peers/UNICAL_Campus_Access echo 'require-mppe-128' >>/etc/ppp/peers/UNICAL_Campus_Access echo 'file /etc/ppp/options.pptp'>>/etc/ppp/peers/UNICAL_Campus_Access echo 'name '$USERNAME''>>/etc/ppp/peers/UNICAL_Campus_Access echo 'remotename PPTP'>>/etc/ppp/peers/UNICAL_Campus_Access echo 'ipparam UNICAL_Campus_Access'>>/etc/ppp/peers/UNICAL_Campus_Access echo $USERNAME' PPTP '$PASSWORD' *'>>/etc/ppp/chap-secrets rm /etc/ppp/options.pptp echo '###############################################################################'>/etc/ppp/options.pptp echo '# $Id: options.pptp,v 1.3 2006/03/26 23:11:05 quozl Exp $'>>/etc/ppp/options.pptp echo '#'>>/etc/ppp/options.pptp echo '# Sample PPTP PPP options file /etc/ppp/options.pptp'>>/etc/ppp/options.pptp echo '# Options used by PPP when a connection is made by a PPTP client.'>>/etc/ppp/options.pptp echo '# This file can be referred to by an /etc/ppp/peers file for the tunnel.'>>/etc/ppp/options.pptp echo '# Changes are effective on the next connection. See "man pppd".'>>/etc/ppp/options.pptp echo '#'>>/etc/ppp/options.pptp echo '# You are expected to change this file to suit your system. As'>>/etc/ppp/options.pptp echo '# packaged, it requires PPP 2.4.2 or later from http://ppp.samba.org/'>>/etc/ppp/options.pptp echo '# and the kernel MPPE module available from the CVS repository also on'>>/etc/ppp/options.pptp echo '# http://ppp.samba.org/, which is packaged for DKMS as kernel_ppp_mppe.'>>/etc/ppp/options.pptp echo '###############################################################################'>>/etc/ppp/options.pptp echo '# Lock the port'>>/etc/ppp/options.pptp echo 'lock'>>/etc/ppp/options.pptp echo '# Authentication'>>/etc/ppp/options.pptp echo '# We do not need the tunnel server to authenticate itself'>>/etc/ppp/options.pptp echo 'noauth'>>/etc/ppp/options.pptp echo '#We won"t do PAP, EAP, CHAP, or MSCHAP, but we will accept MSCHAP-V2'>>/etc/ppp/options.pptp echo '#(you may need to remove these refusals if the server is not using MPPE)'>>/etc/ppp/options.pptp echo 'refuse-pap'>>/etc/ppp/options.pptp echo 'refuse-eap'>>/etc/ppp/options.pptp echo 'refuse-chap'>>/etc/ppp/options.pptp echo 'refuse-mschap'>>/etc/ppp/options.pptp echo '# Compression Turn off compression protocols we know won"t be used'>>/etc/ppp/options.pptp echo 'nobsdcomp'>>/etc/ppp/options.pptp echo 'nodeflate'>>/etc/ppp/options.pptp echo '# Encryption'>>/etc/ppp/options.pptp echo '# (There have been multiple versions of PPP with encryption support,'>>/etc/ppp/options.pptp echo '# choose with of the following sections you will use. Note that MPPE'>>/etc/ppp/options.pptp echo '# requires the use of MSCHAP-V2 during authentication)'>>/etc/ppp/options.pptp echo '# http://ppp.samba.org/ the PPP project version of PPP by Paul Mackarras'>>/etc/ppp/options.pptp echo '# ppp-2.4.2 or later with MPPE only, kernel module ppp_mppe.o'>>/etc/ppp/options.pptp echo '#{{{'>>/etc/ppp/options.pptp echo '# Require MPPE 128-bit encryption'>>/etc/ppp/options.pptp echo '#require-mppe-128'>>/etc/ppp/options.pptp echo '#}}}'>>/etc/ppp/options.pptp echo '# http://polbox.com/h/hs001/ fork from PPP project by Jan Dubiec'>>/etc/ppp/options.pptp echo '#ppp-2.4.2 or later with MPPE and MPPC, kernel module ppp_mppe_mppc.o'>>/etc/ppp/options.pptp echo '#{{{'>>/etc/ppp/options.pptp echo '# Require MPPE 128-bit encryption'>>/etc/ppp/options.pptp echo '#mppe required,stateless'>>/etc/ppp/options.pptp echo '# }}}'>>/etc/ppp/options.pptp echo "setup di 'UNICAL Campus Access' terminato correttamente" echo "per connettersi eseguire lo script 'UNICAL_Campus_Access.sh' " and the second: #!/bin/bash echo "Connessione alla Rete del Centro Residenziale in corso attendere........." modprobe ppp_mppe pppd call UNICAL_Campus_Access sleep 30 tail -n 8 /var/log/messages echo "Connessione Stabilita" echo -n "Per terminare la connessione premere invio (in alternativa eseguire il commando 'killall pppd'):----> " read CONN killall pppd echo "Connessione terminata" I've correctly installed network-manager-pptp to the latest version...help?

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• Can't add repos after upgrading to 12.04 LTS

  - by joao

  I'm a complete Linux newbie. I've just upgraded from 10.04 to 12.04 LTS and all sorts of things have started to go wrong. One main problem is the fact that I can't add repos. Example: sudo add-apt-repository ppa:team-xbmc outputs: Traceback (most recent call last): File "/usr/bin/add-apt-repository", line 8, in <module> from softwareproperties.SoftwareProperties import SoftwareProperties File "/usr/lib/python2.7/dist-packages/softwareproperties/SoftwareProperties.py", line 53, in <module> from ppa import AddPPASigningKeyThread, expand_ppa_line File "/usr/lib/python2.7/dist-packages/softwareproperties/ppa.py", line 27, in <module> import pycurl ImportError: librtmp.so.0: cannot open shared object file: No such file or directory /etc/apt/sources.list # deb cdrom:[Ubuntu 10.04.1 LTS _Lucid Lynx_ - Release i386 (20100816.1)]/ lucid main restricted # deb cdrom:[Ubuntu 10.04.1 LTS _Lucid Lynx_ - Release i386 (20100816.1)]/ maverick main restricted # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://archive.ubuntu.com/ubuntu precise main restricted deb-src http://archive.ubuntu.com/ubuntu precise main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://archive.ubuntu.com/ubuntu precise-updates main restricted deb-src http://archive.ubuntu.com/ubuntu precise-updates main restricted ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu precise universe deb-src http://archive.ubuntu.com/ubuntu precise universe deb http://archive.ubuntu.com/ubuntu precise-updates universe deb-src http://archive.ubuntu.com/ubuntu precise-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://archive.ubuntu.com/ubuntu precise multiverse deb-src http://archive.ubuntu.com/ubuntu precise multiverse deb http://archive.ubuntu.com/ubuntu precise-updates multiverse deb-src http://archive.ubuntu.com/ubuntu precise-updates multiverse ## Uncomment the following two lines to add software from the 'backports' ## repository. ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. # deb-src http://pt.archive.ubuntu.com/ubuntu/ lucid-backports main restricted universe multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. # deb http://archive.canonical.com/ubuntu lucid partner # deb-src http://archive.canonical.com/ubuntu lucid partner deb http://archive.ubuntu.com/ubuntu precise-security main restricted deb-src http://archive.ubuntu.com/ubuntu precise-security main restricted deb http://archive.ubuntu.com/ubuntu precise-security universe deb-src http://archive.ubuntu.com/ubuntu precise-security universe deb http://archive.ubuntu.com/ubuntu precise-security multiverse deb-src http://archive.ubuntu.com/ubuntu precise-security multiverse # deb http://ppa.launchpad.net/stebbins/handbrake-snapshots/ubuntu precise main # disabled on upgrade to precise I have no clue what do do next. Should I just scrap this installation and start from scratch or is this fixable? librtmp.so.0 also shows up in error logs I've started to get from XBMC (I'm not sure if this is relevant info). Thanks in advance for any help you can give me!

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• What's New in Oracle's EPM System?

  - by jmorourke

  Oracle’s EPM System R11.1.2.2  is now generally available to customers and partners on the download center.  Although the release number doesn’t sound significant, this is a major release of Oracle’s Hyperion EPM Suite with new modules as well as significant enhancements across the suite.  This release was announced back on April 4th as part of Oracle’s Business Analytics Strategy launch, so analytics is a key aspect of the release.  But the three biggest pieces of news in this release are Oracle Hyperion Planning support for the Exalytics In-Memory Machine, the new Project Financial Planning Application and the new Account Reconciliations Manager module. The Oracle Exalytics In-Memory Machine was announced back in October 2011, at Oracle OpenWorld.  It’s the latest installment from Oracle in a line of engineered systems that combine Oracle Sun hardware, with Oracle database and application technologies – in solutions that are designed to provide high scalability and performance for specific tasks.  Exalytics is the first engineered system specifically designed for high performance analytics.  Running in-memory versions of Oracle Essbase, as well as the Oracle TimesTen database and Oracle BI tools, Exalytics provides speed of thought response times for complex analytic processes with advanced visualizations.  Early adopter customers have achieved 5X to 100X faster interactivity and 6X to 10X faster planning cycles.  Hyperion Planning running with Oracle Exalytics will support enterprise-wide planning, budgeting and forecasting with more detailed data, with hundreds to thousands of users across an organization getting speed of thought performance. The new Hyperion Project Financial Planning application delivered with EPM 11.1.2.2 is also great news for Oracle customers.  This application follows on the heels of other special-purpose planning applications that Oracle has delivered for Workforce and Capital Asset planning.  It allows Project Managers to identify project-related expenses and revenues, plan and propose new projects, and track results over time. Finance Managers can evaluate and compare different projects, manage the funding process, monitor and report the actual financial results and impacts of projects and project portfolios. This new application is applicable to capital projects, contract projects and indirect projects like IT and HR projects across all industries.  This application is a great complement to existing Project Management applications, and helps bridge the gap between these applications, and the financial planning and budgeting process. Account reconciliations has to be one of the biggest bottlenecks and risks in the financial close and reporting process, and many organizations rely on spreadsheets and manual processes to perform this critical process.  To help address this problem, Oracle developed an Account Reconciliation Manager module that is being delivered as part of Oracle Hyperion Financial Close Management.   This module helps automate and streamline account reconciliations and eliminates the chances for errors, omissions and fraud.  But unlike standalone account reconciliation packages, it’s integrated with the rest of the Oracle Hyperion Financial Close suite, and can integrate balances from any source system.  This can help alleviate a major bottleneck in the financial close process, increase accuracy and reduce risk, and can complement existing investments in Hyperion Financial Management, as well as Oracle and non-Oracle transaction processing systems. Other enhancements in this release include an enhanced Web 2.0 interface for Hyperion Planning and Hyperion Financial Management (HFM), configurable dimensionality in HFM, new Predictive Planning feature in Hyperion Planning, new Detailed Profitability feature in Hyperion Profitability and Cost Management, new Smart View interface for Hyperion Strategic Finance, and integration of the Hyperion applications with JD Edwards Financials. For more information about Oracle EPM System R11.1.2.2 check out the links below: Press Release:  http://www.oracle.com/us/corporate/press/1575775 Product Information on O.com:  http://www.oracle.com/us/solutions/business-analytics/overview/index.html Product Information on OTN:  http://www.oracle.com/technetwork/middleware/epm/downloads/index.html Webcast Replay:  http://www.oracle.com/us/go/index.html?Src=7317510&Act=65&pcode=WWMK11054701MPP046 Please contact me if you have any questions or need additional information – [email protected]

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• JPedal Action for Converting PDF to JavaFX

  - by Geertjan

  The question of the day comes from Mark Stephens, from JPedal (JPedal is the leading 100% Java PDF library, providing a Java PDF viewer, PDF to image conversion, PDF printing or adding PDF search and PDF extraction features), in the form of a screenshot: The question is clear. By looking at the annotations above, you can see that Mark has an ActionListener that has been bound to the right-click popup menu on PDF files. Now he needs to get hold of the file to which the Action has been bound. How, oh  how, can one get hold of that file? Well, it's simple. Leave everything you see above exactly as it is but change the Java code section to this: public final class PDF2JavaFXContext implements ActionListener {     private final DataObject context;     public PDF2JavaFXContext(DataObject context) {         this.context = context;     }     public void actionPerformed(ActionEvent ev) {         FileObject fo = context.getPrimaryFile();         File theFile = FileUtil.toFile(fo);         //do something with your file...     } } The point is that the annotations at the top of the class bind the Action to either Actions.alwaysEnabled, which is a factory method for creating always-enabled Actions, or Actions.context, which is a factory method for creating context-sensitive Actions. How does the Action get bound to the factory method? The annotations are converted, when the module is compiled, into XML registration entries in the "generated-layer.xml", which you can find in your "build" folder, in the Files window, after building the module. In Mark's case, since the Action should be context-sensitive to PDF files, he needs to bind his PDF2JavaFXContext ActionListener (which should probably be named "PDF2JavaFXActionListener", since the class is an ActionListener) to Actions.context. All he needs to do that is pass in the object he wants to work with into the constructor of the ActionListener. Now, when the module is built, the annotation processor is going to take the annotations and convert them to XML registration entries, but the constructor will also be checked to see whether it is empty or not. In this case, the constructor isn't empty, hence the Action should be context-sensitive and so the ActionListener is bound to Actions.context. The Actions.context will do all the enablement work for Mark, so that he will not need to provide any code for enabling/disabling the Action. The Action will be enabled whenever a DataObject is selected. Since his Action is bound to Nodes in the Projects window that represent PDF files, the Action will always be enabled whenever Mark right-clicks on a PDF Node, since the Node exposes its own DataObject. Once Mark has access to the DataObject, he can get the underlying FileObject via getPrimaryFile and he can then convert the FileObject to a java.io.File via FileUtil.getConfigFile. Once he's got the java.io.File, he can do with it whatever he needs. Further reading: http://bits.netbeans.org/dev/javadoc/

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• How to remove synaptic without installing all the unwanted packages?

  - by Jay

  I am trying to uninstall synaptic. I prefer using apt-get and other command line tools to manage my packages. So I do not need synaptic and the software manager. I'm trying to remove both of them using apt-get. Its a new box. Recently installed Linux Mint mate 15. After installation, the only thing I did was, sudo apt-get update and sudo apt-get dist-upgrade After that, I did this command for removing synaptic, sudo apt-get remove --purge synaptic But this gives me a very weird output, Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: apturl-kde icoutils kate-data katepart kde-runtime kde-runtime-data kdelibs-bin kdelibs5-data kdelibs5-plugins kdesudo kdoctools kubuntu-debug-installer libattica0.4 libdlrestrictions1 libkactivities-bin libkactivities-models1 libkactivities6 libkatepartinterfaces4 libkcmutils4 libkde3support4 libkdeclarative5 libkdecore5 libkdesu5 libkdeui5 libkdewebkit5 libkdnssd4 libkemoticons4 libkfile4 libkhtml5 libkidletime4 libkio5 libkjsapi4 libkjsembed4 libkmediaplayer4 libknewstuff3-4 libknotifyconfig4 libkntlm4 libkparts4 libkpty4 libkrosscore4 libktexteditor4 libkxmlrpcclient4 libnepomuk4 libnepomukcore4abi1 libnepomukquery4a libnepomukutils4 libntrack-qt4-1 libntrack0 libphonon4 libplasma3 libpolkit-qt-1-1 libpoppler-qt4-4 libqapt2 libqapt2-runtime libqca2 libqt4-qt3support libsolid4 libsoprano4 libstreamanalyzer0 libstreams0 libthreadweaver4 libvirtodbc0 nepomuk-core nepomuk-core-data ntrack-module-libnl-0 odbcinst odbcinst1debian2 oxygen-icon-theme phonon phonon-backend-gstreamer plasma-scriptengine-javascript qapt-batch shared-desktop-ontologies soprano-daemon virtuoso-minimal virtuoso-opensource-6.1-bin virtuoso-opensource-6.1-common Use 'apt-get autoremove' to remove them. The following extra packages will be installed: apturl-kde icoutils kate-data katepart kde-runtime kde-runtime-data kdelibs-bin kdelibs5-data kdelibs5-plugins kdesudo kdoctools kubuntu-debug-installer libattica0.4 libdlrestrictions1 libkactivities-bin libkactivities-models1 libkactivities6 libkatepartinterfaces4 libkcmutils4 libkde3support4 libkdeclarative5 libkdecore5 libkdesu5 libkdeui5 libkdewebkit5 libkdnssd4 libkemoticons4 libkfile4 libkhtml5 libkidletime4 libkio5 libkjsapi4 libkjsembed4 libkmediaplayer4 libknewstuff3-4 libknotifyconfig4 libkntlm4 libkparts4 libkpty4 libkrosscore4 libktexteditor4 libkxmlrpcclient4 libnepomuk4 libnepomukcore4abi1 libnepomukquery4a libnepomukutils4 libntrack-qt4-1 libntrack0 libphonon4 libplasma3 libpolkit-qt-1-1 libpoppler-qt4-4 libqapt2 libqapt2-runtime libqca2 libqt4-qt3support libsolid4 libsoprano4 libstreamanalyzer0 libstreams0 libthreadweaver4 libvirtodbc0 libxml2-utils nepomuk-core nepomuk-core-data ntrack-module-libnl-0 odbcinst odbcinst1debian2 oxygen-icon-theme phonon phonon-backend-gstreamer plasma-scriptengine-javascript qapt-batch shared-desktop-ontologies soprano-daemon virtuoso-minimal virtuoso-opensource-6.1-bin virtuoso-opensource-6.1-common Suggested packages: libterm-readline-gnu-perl libterm-readline-perl-perl djvulibre-bin finger hspell libqca2-plugin-cyrus-sasl libqca2-plugin-gnupg libqca2-plugin-ossl phonon-backend-vlc phonon-backend-xine phonon-backend-mplayer The following packages will be REMOVED: aptoncd* apturl* mintupdate* mintwelcome* synaptic* The following NEW packages will be installed: apturl-kde icoutils kate-data katepart kde-runtime kde-runtime-data kdelibs-bin kdelibs5-data kdelibs5-plugins kdesudo kdoctools kubuntu-debug-installer libattica0.4 libdlrestrictions1 libkactivities-bin libkactivities-models1 libkactivities6 libkatepartinterfaces4 libkcmutils4 libkde3support4 libkdeclarative5 libkdecore5 libkdesu5 libkdeui5 libkdewebkit5 libkdnssd4 libkemoticons4 libkfile4 libkhtml5 libkidletime4 libkio5 libkjsapi4 libkjsembed4 libkmediaplayer4 libknewstuff3-4 libknotifyconfig4 libkntlm4 libkparts4 libkpty4 libkrosscore4 libktexteditor4 libkxmlrpcclient4 libnepomuk4 libnepomukcore4abi1 libnepomukquery4a libnepomukutils4 libntrack-qt4-1 libntrack0 libphonon4 libplasma3 libpolkit-qt-1-1 libpoppler-qt4-4 libqapt2 libqapt2-runtime libqca2 libqt4-qt3support libsolid4 libsoprano4 libstreamanalyzer0 libstreams0 libthreadweaver4 libvirtodbc0 libxml2-utils nepomuk-core nepomuk-core-data ntrack-module-libnl-0 odbcinst odbcinst1debian2 oxygen-icon-theme phonon phonon-backend-gstreamer plasma-scriptengine-javascript qapt-batch shared-desktop-ontologies soprano-daemon virtuoso-minimal virtuoso-opensource-6.1-bin virtuoso-opensource-6.1-common 0 upgraded, 78 newly installed, 5 to remove and 0 not upgraded. Need to get 60.9 MB of archives. After this operation, 146 MB of additional disk space will be used. Do you want to continue [Y/n]? n Abort. As you can see, apt-get is trying to install the same packages that it is asking me to autoremove. Could someone please tell me, how to uninstall synaptic properly? Or am I missing something? Just for the record, I also did, sudo apt-get autoremove --purge like it asked me to ... and this is what I got, Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 6 not upgraded.

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• "previousMode": Controling the Pin Action of a TopComponent

  - by Geertjan

  An excellent thing I learned today is that you, as a developer of a NetBeans module or NetBeans Platform application, can control the pin button. Up until today, whenever I had a TopComponent defined to appear in "rightSlidingSide" mode and then I clicked the "pin" button, as shown here... ...the TopComponent would then find itself pinned in the "explorer" mode. Would make more sense if it would be pinned in the "properties" mode, which is the docked mode closest to the "rightSlidingSide" mode. Not being able to control the "pin" button has been a recurring question (including in my own head) over several years. But the NetBeans Team's window system guru Stan Aubrecht informed me today that a "previousMode" attribute exists in the "tc-ref" file of the TopComponent. Since a few releases, that file is generated via the annotations in the TopComponent. However, "previousMode" is currently not one of the attributes exposed by the @TopComponent.Registration annotation. Therefore, what I did was this: Set "rightSlidingSide" in the "mode" attribute of the @TopComponent.Registration. Build the module. Find the "generated-layer.xml" (in the Files window) and move the layer registration of the TopComponent, including its action and menu item for opening the TopComponent, into my own manual layer within the module. Then remove all the TopComponent annotations from the TopComponent, though you can keep @ConvertAsProperties and @Messages. Then add the "previousMode" attribute, as highlighted below, into my own layer file, i.e., within the tags copied from the "generated-layer.xml": <folder name="Modes"> <folder name="rightSlidingSide"> <file name="ComparatorTopComponent.wstcref"> <![CDATA[<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE tc-ref PUBLIC "-//NetBeans//DTD Top Component in Mode Properties 2.0//EN" "http://www.netbeans.org/dtds/tc-ref2_0.dtd"> <tc-ref version="2.0"> <tc-id id="ComparatorTopComponent"/> <state opened="false"/> <previousMode name="properties" index="0" /> </tc-ref> ]]> </file> </folder> </folder> Now when you run the application and pin the specific TopComponent defined above, i.e., in the above case, named "ComparatorTopComponent", you will find it is pinned into the "properties" mode! That's pretty cool and if you agree, then you're a pretty cool NetBeans Platform developer, and I'd love to find out more about the application/s you're creating on the NetBeans Platform! Meanwhile, I'm going to create an issue for exposing the "previousMode" attribute in the @TopComponent.Registration annotation.

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• Rendering ASP.NET Script References into the Html Header

  - by Rick Strahl

  One thing that I’ve come to appreciate in control development in ASP.NET that use JavaScript is the ability to have more control over script and script include placement than ASP.NET provides natively. Specifically in ASP.NET you can use either the ClientScriptManager or ScriptManager to embed scripts and script references into pages via code. This works reasonably well, but the script references that get generated are generated into the HTML body and there’s very little operational control for placement of scripts. If you have multiple controls or several of the same control that need to place the same scripts onto the page it’s not difficult to end up with scripts that render in the wrong order and stop working correctly. This is especially critical if you load script libraries with dependencies either via resources or even if you are rendering referenced to CDN resources. Natively ASP.NET provides a host of methods that help embedding scripts into the page via either Page.ClientScript or the ASP.NET ScriptManager control (both with slightly different syntax): RegisterClientScriptBlock Renders a script block at the top of the HTML body and should be used for embedding callable functions/classes. RegisterStartupScript Renders a script block just prior to the </form> tag and should be used to for embedding code that should execute when the page is first loaded. Not recommended – use jQuery.ready() or equivalent load time routines. RegisterClientScriptInclude Embeds a reference to a script from a url into the page. RegisterClientScriptResource Embeds a reference to a Script from a resource file generating a long resource file string All 4 of these methods render their <script> tags into the HTML body. The script blocks give you a little bit of control by having a ‘top’ and ‘bottom’ of the document location which gives you some flexibility over script placement and precedence. Script includes and resource url unfortunately do not even get that much control – references are simply rendered into the page in the order of declaration. The ASP.NET ScriptManager control facilitates this task a little bit with the abililty to specify scripts in code and the ability to programmatically check what scripts have already been registered, but it doesn’t provide any more control over the script rendering process itself. Further the ScriptManager is a bear to deal with generically because generic code has to always check and see if it is actually present. Some time ago I posted a ClientScriptProxy class that helps with managing the latter process of sending script references either to ClientScript or ScriptManager if it’s available. Since I last posted about this there have been a number of improvements in this API, one of which is the ability to control placement of scripts and script includes in the page which I think is rather important and a missing feature in the ASP.NET native functionality. Handling ScriptRenderModes One of the big enhancements that I’ve come to rely on is the ability of the various script rendering functions described above to support rendering in multiple locations: /// <summary> /// Determines how scripts are included into the page /// </summary> public enum ScriptRenderModes { /// <summary> /// Inherits the setting from the control or from the ClientScript.DefaultScriptRenderMode /// </summary> Inherit, /// Renders the script include at the location of the control /// </summary> Inline, /// <summary> /// Renders the script include into the bottom of the header of the page /// </summary> Header, /// <summary> /// Renders the script include into the top of the header of the page /// </summary> HeaderTop, /// <summary> /// Uses ClientScript or ScriptManager to embed the script include to /// provide standard ASP.NET style rendering in the HTML body. /// </summary> Script, /// <summary> /// Renders script at the bottom of the page before the last Page.Controls /// literal control. Note this may result in unexpected behavior /// if /body and /html are not the last thing in the markup page. /// </summary> BottomOfPage } This enum is then applied to the various Register functions to allow more control over where scripts actually show up. Why is this useful? For me I often render scripts out of control resources and these scripts often include things like a JavaScript Library (jquery) and a few plug-ins. The order in which these can be loaded is critical so that jQuery.js always loads before any plug-in for example. Typically I end up with a general script layout like this: Core Libraries- HeaderTop Plug-ins: Header ScriptBlocks: Header or Script depending on other dependencies There’s also an option to render scripts and CSS at the very bottom of the page before the last Page control on the page which can be useful for speeding up page load when lots of scripts are loaded. The API syntax of the ClientScriptProxy methods is closely compatible with ScriptManager’s using static methods and control references to gain access to the page and embedding scripts. For example, to render some script into the current page in the header: // Create script block in header ClientScriptProxy.Current.RegisterClientScriptBlock(this, typeof(ControlResources), "hello_function", "function helloWorld() { alert('hello'); }", true, ScriptRenderModes.Header); // Same again - shouldn't be rendered because it's the same id ClientScriptProxy.Current.RegisterClientScriptBlock(this, typeof(ControlResources), "hello_function", "function helloWorld() { alert('hello'); }", true, ScriptRenderModes.Header); // Create a second script block in header ClientScriptProxy.Current.RegisterClientScriptBlock(this, typeof(ControlResources), "hello_function2", "function helloWorld2() { alert('hello2'); }", true, ScriptRenderModes.Header); // This just calls ClientScript and renders into bottom of document ClientScriptProxy.Current.RegisterStartupScript(this,typeof(ControlResources), "call_hello", "helloWorld();helloWorld2();", true); which generates: <html xmlns="http://www.w3.org/1999/xhtml" > <head><title> </title> <script type="text/javascript"> function helloWorld() { alert('hello'); } </script> <script type="text/javascript"> function helloWorld2() { alert('hello2'); } </script> </head> <body> … <script type="text/javascript"> //<![CDATA[ helloWorld();helloWorld2();//]]> </script> </form> </body> </html> Note that the scripts are generated into the header rather than the body except for the last script block which is the call to RegisterStartupScript. In general I wouldn’t recommend using RegisterStartupScript – ever. It’s a much better practice to use a script base load event to handle ‘startup’ code that should fire when the page first loads. So instead of the code above I’d actually recommend doing: ClientScriptProxy.Current.RegisterClientScriptBlock(this, typeof(ControlResources), "call_hello", "$().ready( function() { alert('hello2'); });", true, ScriptRenderModes.Header); assuming you’re using jQuery on the page. For script includes from a Url the following demonstrates how to embed scripts into the header. This example injects a jQuery and jQuery.UI script reference from the Google CDN then checks each with a script block to ensure that it has loaded and if not loads it from a server local location: // load jquery from CDN ClientScriptProxy.Current.RegisterClientScriptInclude(this, typeof(ControlResources), "http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js", ScriptRenderModes.HeaderTop); // check if jquery loaded - if it didn't we're not online string scriptCheck = @"if (typeof jQuery != 'object') document.write(unescape(""%3Cscript src='{0}' type='text/javascript'%3E%3C/script%3E""));"; string jQueryUrl = ClientScriptProxy.Current.GetWebResourceUrl(this, typeof(ControlResources), ControlResources.JQUERY_SCRIPT_RESOURCE); ClientScriptProxy.Current.RegisterClientScriptBlock(this, typeof(ControlResources), "jquery_register", string.Format(scriptCheck,jQueryUrl),true, ScriptRenderModes.HeaderTop); // Load jquery-ui from cdn ClientScriptProxy.Current.RegisterClientScriptInclude(this, typeof(ControlResources), "http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js", ScriptRenderModes.Header); // check if we need to load from local string jQueryUiUrl = ResolveUrl("~/scripts/jquery-ui-custom.min.js"); ClientScriptProxy.Current.RegisterClientScriptBlock(this, typeof(ControlResources), "jqueryui_register", string.Format(scriptCheck, jQueryUiUrl), true, ScriptRenderModes.Header); // Create script block in header ClientScriptProxy.Current.RegisterClientScriptBlock(this, typeof(ControlResources), "hello_function", "$().ready( function() { alert('hello'); });", true, ScriptRenderModes.Header); which in turn generates this HTML: <html xmlns="http://www.w3.org/1999/xhtml" > <head> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" type="text/javascript"></script> <script type="text/javascript"> if (typeof jQuery != 'object') document.write(unescape("%3Cscript src='/WestWindWebToolkitWeb/WebResource.axd?d=DIykvYhJ_oXCr-TA_dr35i4AayJoV1mgnQAQGPaZsoPM2LCdvoD3cIsRRitHKlKJfV5K_jQvylK7tsqO3lQIFw2&t=633979863959332352' type='text/javascript'%3E%3C/script%3E")); </script> <title> </title> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js" type="text/javascript"></script> <script type="text/javascript"> if (typeof jQuery != 'object') document.write(unescape("%3Cscript src='/WestWindWebToolkitWeb/scripts/jquery-ui-custom.min.js' type='text/javascript'%3E%3C/script%3E")); </script> <script type="text/javascript"> $().ready(function() { alert('hello'); }); </script> </head> <body> …</body> </html> As you can see there’s a bit more control in this process as you can inject both script includes and script blocks into the document at the top or bottom of the header, plus if necessary at the usual body locations. This is quite useful especially if you create custom server controls that interoperate with script and have certain dependencies. The above is a good example of a useful switchable routine where you can switch where scripts load from by default – the above pulls from Google CDN but a configuration switch may automatically switch to pull from the local development copies if your doing development for example. How does it work? As mentioned the ClientScriptProxy object mimicks many of the ScriptManager script related methods and so provides close API compatibility with it although it contains many additional overloads that enhance functionality. It does however work against ScriptManager if it’s available on the page, or Page.ClientScript if it’s not so it provides a single unified frontend to script access. There are however many overloads of the original SM methods like the above to provide additional functionality. The implementation of script header rendering is pretty straight forward – as long as a server header (ie. it has to have runat=”server” set) is available. Otherwise these routines fall back to using the default document level insertions of ScriptManager/ClientScript. Given that there is a server header it’s relatively easy to generate the script tags and code and append them to the header either at the top or bottom. I suspect Microsoft didn’t provide header rendering functionality precisely because a runat=”server” header is not required by ASP.NET so behavior would be slightly unpredictable. That’s not really a problem for a custom implementation however. Here’s the RegisterClientScriptBlock implementation that takes a ScriptRenderModes parameter to allow header rendering: /// <summary> /// Renders client script block with the option of rendering the script block in /// the Html header /// /// For this to work Header must be defined as runat="server" /// </summary> /// <param name="control">any control that instance typically page</param> /// <param name="type">Type that identifies this rendering</param> /// <param name="key">unique script block id</param> /// <param name="script">The script code to render</param> /// <param name="addScriptTags">Ignored for header rendering used for all other insertions</param> /// <param name="renderMode">Where the block is rendered</param> public void RegisterClientScriptBlock(Control control, Type type, string key, string script, bool addScriptTags, ScriptRenderModes renderMode) { if (renderMode == ScriptRenderModes.Inherit) renderMode = DefaultScriptRenderMode; if (control.Page.Header == null || renderMode != ScriptRenderModes.HeaderTop && renderMode != ScriptRenderModes.Header && renderMode != ScriptRenderModes.BottomOfPage) { RegisterClientScriptBlock(control, type, key, script, addScriptTags); return; } // No dupes - ref script include only once const string identifier = "scriptblock_"; if (HttpContext.Current.Items.Contains(identifier + key)) return; HttpContext.Current.Items.Add(identifier + key, string.Empty); StringBuilder sb = new StringBuilder(); // Embed in header sb.AppendLine("\r\n<script type=\"text/javascript\">"); sb.AppendLine(script); sb.AppendLine("</script>"); int? index = HttpContext.Current.Items["__ScriptResourceIndex"] as int?; if (index == null) index = 0; if (renderMode == ScriptRenderModes.HeaderTop) { control.Page.Header.Controls.AddAt(index.Value, new LiteralControl(sb.ToString())); index++; } else if(renderMode == ScriptRenderModes.Header) control.Page.Header.Controls.Add(new LiteralControl(sb.ToString())); else if (renderMode == ScriptRenderModes.BottomOfPage) control.Page.Controls.AddAt(control.Page.Controls.Count-1,new LiteralControl(sb.ToString())); HttpContext.Current.Items["__ScriptResourceIndex"] = index; } Note that the routine has to keep track of items inserted by id so that if the same item is added again with the same key it won’t generate two script entries. Additionally the code has to keep track of how many insertions have been made at the top of the document so that entries are added in the proper order. The RegisterScriptInclude method is similar but there’s some additional logic in here to deal with script file references and ClientScriptProxy’s (optional) custom resource handler that provides script compression /// <summary> /// Registers a client script reference into the page with the option to specify /// the script location in the page /// </summary> /// <param name="control">Any control instance - typically page</param> /// <param name="type">Type that acts as qualifier (uniqueness)</param> /// <param name="url">the Url to the script resource</param> /// <param name="ScriptRenderModes">Determines where the script is rendered</param> public void RegisterClientScriptInclude(Control control, Type type, string url, ScriptRenderModes renderMode) { const string STR_ScriptResourceIndex = "__ScriptResourceIndex"; if (string.IsNullOrEmpty(url)) return; if (renderMode == ScriptRenderModes.Inherit) renderMode = DefaultScriptRenderMode; // Extract just the script filename string fileId = null; // Check resource IDs and try to match to mapped file resources // Used to allow scripts not to be loaded more than once whether // embedded manually (script tag) or via resources with ClientScriptProxy if (url.Contains(".axd?r=")) { string res = HttpUtility.UrlDecode( StringUtils.ExtractString(url, "?r=", "&", false, true) ); foreach (ScriptResourceAlias item in ScriptResourceAliases) { if (item.Resource == res) { fileId = item.Alias + ".js"; break; } } if (fileId == null) fileId = url.ToLower(); } else fileId = Path.GetFileName(url).ToLower(); // No dupes - ref script include only once const string identifier = "script_"; if (HttpContext.Current.Items.Contains( identifier + fileId ) ) return; HttpContext.Current.Items.Add(identifier + fileId, string.Empty); // just use script manager or ClientScriptManager if (control.Page.Header == null || renderMode == ScriptRenderModes.Script || renderMode == ScriptRenderModes.Inline) { RegisterClientScriptInclude(control, type,url, url); return; } // Retrieve script index in header int? index = HttpContext.Current.Items[STR_ScriptResourceIndex] as int?; if (index == null) index = 0; StringBuilder sb = new StringBuilder(256); url = WebUtils.ResolveUrl(url); // Embed in header sb.AppendLine("\r\n<script src=\"" + url + "\" type=\"text/javascript\"></script>"); if (renderMode == ScriptRenderModes.HeaderTop) { control.Page.Header.Controls.AddAt(index.Value, new LiteralControl(sb.ToString())); index++; } else if (renderMode == ScriptRenderModes.Header) control.Page.Header.Controls.Add(new LiteralControl(sb.ToString())); else if (renderMode == ScriptRenderModes.BottomOfPage) control.Page.Controls.AddAt(control.Page.Controls.Count-1, new LiteralControl(sb.ToString())); HttpContext.Current.Items[STR_ScriptResourceIndex] = index; } There’s a little more code here that deals with cleaning up the passed in Url and also some custom handling of script resources that run through the ScriptCompressionModule – any script resources loaded in this fashion are automatically cached based on the resource id. Raw urls extract just the filename from the URL and cache based on that. All of this to avoid doubling up of scripts if called multiple times by multiple instances of the same control for example or several controls that all load the same resources/includes. Finally RegisterClientScriptResource utilizes the previous method to wrap the WebResourceUrl as well as some custom functionality for the resource compression module: /// <summary> /// Returns a WebResource or ScriptResource URL for script resources that are to be /// embedded as script includes. /// </summary> /// <param name="control">Any control</param> /// <param name="type">A type in assembly where resources are located</param> /// <param name="resourceName">Name of the resource to load</param> /// <param name="renderMode">Determines where in the document the link is rendered</param> public void RegisterClientScriptResource(Control control, Type type, string resourceName, ScriptRenderModes renderMode) { string resourceUrl = GetClientScriptResourceUrl(control, type, resourceName); RegisterClientScriptInclude(control, type, resourceUrl, renderMode); } /// <summary> /// Works like GetWebResourceUrl but can be used with javascript resources /// to allow using of resource compression (if the module is loaded). /// </summary> /// <param name="control"></param> /// <param name="type"></param> /// <param name="resourceName"></param> /// <returns></returns> public string GetClientScriptResourceUrl(Control control, Type type, string resourceName) { #if IncludeScriptCompressionModuleSupport // If wwScriptCompression Module through Web.config is loaded use it to compress // script resources by using wcSC.axd Url the module intercepts if (ScriptCompressionModule.ScriptCompressionModuleActive) { string url = "~/wwSC.axd?r=" + HttpUtility.UrlEncode(resourceName); if (type.Assembly != GetType().Assembly) url += "&t=" + HttpUtility.UrlEncode(type.FullName); return WebUtils.ResolveUrl(url); } #endif return control.Page.ClientScript.GetWebResourceUrl(type, resourceName); } This code merely retrieves the resource URL and then simply calls back to RegisterClientScriptInclude with the URL to be embedded which means there’s nothing specific to deal with other than the custom compression module logic which is nice and easy. What else is there in ClientScriptProxy? ClientscriptProxy also provides a few other useful services beyond what I’ve already covered here: Transparent ScriptManager and ClientScript calls ClientScriptProxy includes a host of routines that help figure out whether a script manager is available or not and all functions in this class call the appropriate object – ScriptManager or ClientScript – that is available in the current page to ensure that scripts get embedded into pages properly. This is especially useful for control development where controls have no control over the scripting environment in place on the page. RegisterCssLink and RegisterCssResource Much like the script embedding functions these two methods allow embedding of CSS links. CSS links are appended to the header or to a form declared with runat=”server”. LoadControlScript Is a high level resource loading routine that can be used to easily switch between different script linking modes. It supports loading from a WebResource, a url or not loading anything at all. This is very useful if you build controls that deal with specification of resource urls/ids in a standard way. Check out the full Code You can check out the full code to the ClientScriptProxyClass here: ClientScriptProxy.cs ClientScriptProxy Documentation (class reference) Note that the ClientScriptProxy has a few dependencies in the West Wind Web Toolkit of which it is part of. ControlResources holds a few standard constants and script resource links and the ScriptCompressionModule which is referenced in a few of the script inclusion methods. There’s also another useful ScriptContainer companion control  to the ClientScriptProxy that allows scripts to be placed onto the page’s markup including the ability to specify the script location and script minification options. You can find all the dependencies in the West Wind Web Toolkit repository: West Wind Web Toolkit Repository West Wind Web Toolkit Home Page© Rick Strahl, West Wind Technologies, 2005-2010Posted in ASP.NET  JavaScript  

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• ASP.NET MVC 3 Hosting :: How to Deploy Web Apps Using ASP.NET MVC 3, Razor and EF Code First - Part I

  - by mbridge

  First, you can download the source code from http://efmvc.codeplex.com. The following frameworks will be used for this step by step tutorial. public class Category {     public int CategoryId { get; set; }     [Required(ErrorMessage = "Name Required")]     [StringLength(25, ErrorMessage = "Must be less than 25 characters")]     public string Name { get; set;}     public string Description { get; set; }     public virtual ICollection<Expense> Expenses { get; set; } } Expense Class public class Expense {             public int ExpenseId { get; set; }            public string  Transaction { get; set; }     public DateTime Date { get; set; }     public double Amount { get; set; }     public int CategoryId { get; set; }     public virtual Category Category { get; set; } }    Define Domain Model Let’s create domain model for our simple web application Category Class We have two domain entities - Category and Expense. A single category contains a list of expense transactions and every expense transaction should have a Category. In this post, we will be focusing on CRUD operations for the entity Category and will be working on the Expense entity with a View Model object in the later post. And the source code for this application will be refactored over time. The above entities are very simple POCO (Plain Old CLR Object) classes and the entity Category is decorated with validation attributes in the System.ComponentModel.DataAnnotations namespace. Now we want to use these entities for defining model objects for the Entity Framework 4. Using the Code First approach of Entity Framework, we can first define the entities by simply writing POCO classes without any coupling with any API or database library. This approach lets you focus on domain model which will enable Domain-Driven Development for applications. EF code first support is currently enabled with a separate API that is runs on top of the Entity Framework 4. EF Code First is reached CTP 5 when I am writing this article. Creating Context Class for Entity Framework We have created our domain model and let’s create a class in order to working with Entity Framework Code First. For this, you have to download EF Code First CTP 5 and add reference to the assembly EntitFramework.dll. You can also use NuGet to download add reference to EEF Code First. public class MyFinanceContext : DbContext {     public MyFinanceContext() : base("MyFinance") { }     public DbSet<Category> Categories { get; set; }     public DbSet<Expense> Expenses { get; set; }         }   The above class MyFinanceContext is derived from DbContext that can connect your model classes to a database. The MyFinanceContext class is mapping our Category and Expense class into database tables Categories and Expenses using DbSet<TEntity> where TEntity is any POCO class. When we are running the application at first time, it will automatically create the database. EF code-first look for a connection string in web.config or app.config that has the same name as the dbcontext class. If it is not find any connection string with the convention, it will automatically create database in local SQL Express database by default and the name of the database will be same name as the dbcontext class. You can also define the name of database in constructor of the the dbcontext class. Unlike NHibernate, we don’t have to use any XML based mapping files or Fluent interface for mapping between our model and database. The model classes of Code First are working on the basis of conventions and we can also use a fluent API to refine our model. The convention for primary key is ‘Id’ or ‘<class name>Id’.  If primary key properties are detected with type ‘int’, ‘long’ or ‘short’, they will automatically registered as identity columns in the database by default. Primary key detection is not case sensitive. We can define our model classes with validation attributes in the System.ComponentModel.DataAnnotations namespace and it automatically enforces validation rules when a model object is updated or saved. Generic Repository for EF Code First We have created model classes and dbcontext class. Now we have to create generic repository pattern for data persistence with EF code first. If you don’t know about the repository pattern, checkout Martin Fowler’s article on Repository Let’s create a generic repository to working with DbContext and DbSet generics. public interface IRepository<T> where T : class     {         void Add(T entity);         void Delete(T entity);         T GetById(long Id);         IEnumerable<T> All();     } RepositoryBasse – Generic Repository class protected MyFinanceContext Database {     get { return database ?? (database = DatabaseFactory.Get()); } } public virtual void Add(T entity) {     dbset.Add(entity);            }        public virtual void Delete(T entity) {     dbset.Remove(entity); }   public virtual T GetById(long id) {     return dbset.Find(id); }   public virtual IEnumerable<T> All() {     return dbset.ToList(); } } DatabaseFactory class public class DatabaseFactory : Disposable, IDatabaseFactory {     private MyFinanceContext database;     public MyFinanceContext Get()     {         return database ?? (database = new MyFinanceContext());     }     protected override void DisposeCore()     {         if (database != null)             database.Dispose();     } } Unit of Work If you are new to Unit of Work pattern, checkout Fowler’s article on Unit of Work . According to Martin Fowler, the Unit of Work pattern "maintains a list of objects affected by a business transaction and coordinates the writing out of changes and the resolution of concurrency problems." Let’s create a class for handling Unit of Work public interface IUnitOfWork {     void Commit(); } UniOfWork class public class UnitOfWork : IUnitOfWork {     private readonly IDatabaseFactory databaseFactory;     private MyFinanceContext dataContext;       public UnitOfWork(IDatabaseFactory databaseFactory)     {         this.databaseFactory = databaseFactory;     }       protected MyFinanceContext DataContext     {         get { return dataContext ?? (dataContext = databaseFactory.Get()); }     }       public void Commit()     {         DataContext.Commit();     } } The Commit method of the UnitOfWork will call the commit method of MyFinanceContext class and it will execute the SaveChanges method of DbContext class.   Repository class for Category In this post, we will be focusing on the persistence against Category entity and will working on other entities in later post. Let’s create a repository for handling CRUD operations for Category using derive from a generic Repository RepositoryBase<T>. public class CategoryRepository: RepositoryBase<Category>, ICategoryRepository     {     public CategoryRepository(IDatabaseFactory databaseFactory)         : base(databaseFactory)         {         }                } public interface ICategoryRepository : IRepository<Category> { } If we need additional methods than generic repository for the Category, we can define in the CategoryRepository. Dependency Injection using Unity 2.0 If you are new to Inversion of Control/ Dependency Injection or Unity, please have a look on my articles at http://weblogs.asp.net/shijuvarghese/archive/tags/IoC/default.aspx. I want to create a custom lifetime manager for Unity to store container in the current HttpContext. public class HttpContextLifetimeManager<T> : LifetimeManager, IDisposable {     public override object GetValue()     {         return HttpContext.Current.Items[typeof(T).AssemblyQualifiedName];     }     public override void RemoveValue()     {         HttpContext.Current.Items.Remove(typeof(T).AssemblyQualifiedName);     }     public override void SetValue(object newValue)     {         HttpContext.Current.Items[typeof(T).AssemblyQualifiedName] = newValue;     }     public void Dispose()     {         RemoveValue();     } } Let’s create controller factory for Unity in the ASP.NET MVC 3 application.                 404, String.Format(                     "The controller for path '{0}' could not be found" +     "or it does not implement IController.",                 reqContext.HttpContext.Request.Path));       if (!typeof(IController).IsAssignableFrom(controllerType))         throw new ArgumentException(                 string.Format(                     "Type requested is not a controller: {0}",                     controllerType.Name),                     "controllerType");     try     {         controller= container.Resolve(controllerType) as IController;     }     catch (Exception ex)     {         throw new InvalidOperationException(String.Format(                                 "Error resolving controller {0}",                                 controllerType.Name), ex);     }     return controller; }   } Configure contract and concrete types in Unity Let’s configure our contract and concrete types in Unity for resolving our dependencies. private void ConfigureUnity() {     //Create UnityContainer               IUnityContainer container = new UnityContainer()                 .RegisterType<IDatabaseFactory, DatabaseFactory>(new HttpContextLifetimeManager<IDatabaseFactory>())     .RegisterType<IUnitOfWork, UnitOfWork>(new HttpContextLifetimeManager<IUnitOfWork>())     .RegisterType<ICategoryRepository, CategoryRepository>(new HttpContextLifetimeManager<ICategoryRepository>());                 //Set container for Controller Factory                ControllerBuilder.Current.SetControllerFactory(             new UnityControllerFactory(container)); } In the above ConfigureUnity method, we are registering our types onto Unity container with custom lifetime manager HttpContextLifetimeManager. Let’s call ConfigureUnity method in the Global.asax.cs for set controller factory for Unity and configuring the types with Unity. protected void Application_Start() {     AreaRegistration.RegisterAllAreas();     RegisterGlobalFilters(GlobalFilters.Filters);     RegisterRoutes(RouteTable.Routes);     ConfigureUnity(); } Developing web application using ASP.NET MVC 3 We have created our domain model for our web application and also have created repositories and configured dependencies with Unity container. Now we have to create controller classes and views for doing CRUD operations against the Category entity. Let’s create controller class for Category Category Controller public class CategoryController : Controller {     private readonly ICategoryRepository categoryRepository;     private readonly IUnitOfWork unitOfWork;           public CategoryController(ICategoryRepository categoryRepository, IUnitOfWork unitOfWork)     {         this.categoryRepository = categoryRepository;         this.unitOfWork = unitOfWork;     }       public ActionResult Index()     {         var categories = categoryRepository.All();         return View(categories);     }     [HttpGet]     public ActionResult Edit(int id)     {         var category = categoryRepository.GetById(id);         return View(category);     }       [HttpPost]     public ActionResult Edit(int id, FormCollection collection)     {         var category = categoryRepository.GetById(id);         if (TryUpdateModel(category))         {             unitOfWork.Commit();             return RedirectToAction("Index");         }         else return View(category);                 }       [HttpGet]     public ActionResult Create()     {         var category = new Category();         return View(category);     }           [HttpPost]     public ActionResult Create(Category category)     {         if (!ModelState.IsValid)         {             return View("Create", category);         }                     categoryRepository.Add(category);         unitOfWork.Commit();         return RedirectToAction("Index");     }       [HttpPost]     public ActionResult Delete(int  id)     {         var category = categoryRepository.GetById(id);         categoryRepository.Delete(category);         unitOfWork.Commit();         var categories = categoryRepository.All();         return PartialView("CategoryList", categories);       }        } Creating Views in Razor Now we are going to create views in Razor for our ASP.NET MVC 3 application.  Let’s create a partial view CategoryList.cshtml for listing category information and providing link for Edit and Delete operations. CategoryList.cshtml @using MyFinance.Helpers; @using MyFinance.Domain; @model IEnumerable<Category>      <table>         <tr>         <th>Actions</th>         <th>Name</th>          <th>Description</th>         </tr>     @foreach (var item in Model) {             <tr>             <td>                 @Html.ActionLink("Edit", "Edit",new { id = item.CategoryId })                 @Ajax.ActionLink("Delete", "Delete", new { id = item.CategoryId }, new AjaxOptions { Confirm = "Delete Expense?", HttpMethod = "Post", UpdateTargetId = "divCategoryList" })                           </td>             <td>                 @item.Name             </td>             <td>                 @item.Description             </td>         </tr>         }       </table>     <p>         @Html.ActionLink("Create New", "Create")     </p> The delete link is providing Ajax functionality using the Ajax.ActionLink. This will call an Ajax request for Delete action method in the CategoryCotroller class. In the Delete action method, it will return Partial View CategoryList after deleting the record. We are using CategoryList view for the Ajax functionality and also for Index view using for displaying list of category information. Let’s create Index view using partial view CategoryList  Index.chtml @model IEnumerable<MyFinance.Domain.Category> @{     ViewBag.Title = "Index"; }    <h2>Category List</h2>    <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>    <div id="divCategoryList">               @Html.Partial("CategoryList", Model) </div> We can call the partial views using Html.Partial helper method. Now we are going to create View pages for insert and update functionality for the Category. Both view pages are sharing common user interface for entering the category information. So I want to create an EditorTemplate for the Category information. We have to create the EditorTemplate with the same name of entity object so that we can refer it on view pages using @Html.EditorFor(model => model) . So let’s create template with name Category. Category.cshtml @model MyFinance.Domain.Category <div class="editor-label"> @Html.LabelFor(model => model.Name) </div> <div class="editor-field"> @Html.EditorFor(model => model.Name) @Html.ValidationMessageFor(model => model.Name) </div> <div class="editor-label"> @Html.LabelFor(model => model.Description) </div> <div class="editor-field"> @Html.EditorFor(model => model.Description) @Html.ValidationMessageFor(model => model.Description) </div> Let’s create view page for insert Category information @model MyFinance.Domain.Category   @{     ViewBag.Title = "Save"; }   <h2>Create</h2>   <script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>   @using (Html.BeginForm()) {     @Html.ValidationSummary(true)     <fieldset>         <legend>Category</legend>                @Html.EditorFor(model => model)               <p>             <input type="submit" value="Create" />         </p>     </fieldset> }   <div>     @Html.ActionLink("Back to List", "Index") </div> ViewStart file In Razor views, we can add a file named _viewstart.cshtml in the views directory  and this will be shared among the all views with in the Views directory. The below code in the _viewstart.cshtml, sets the Layout page for every Views in the Views folder.     @{     Layout = "~/Views/Shared/_Layout.cshtml"; } Tomorrow, we will cotinue the second part of this article. :)

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• MVVM in Task-It

  As I'm gearing up to write a post about dynamic XAP loading with MEF, I'd like to first talk a bit about MVVM, the Model-View-ViewModel pattern, as I will be leveraging this pattern in my future posts. Download Source Code Why MVVM? Your first question may be, "why do I need this pattern? I've been using a code-behind approach for years and it works fine." Well, you really don't have to make the switch to MVVM, but let me first explain some of the benefits I see for doing so. MVVM Benefits Testability - This is the one you'll probably hear the most about when it comes to MVVM. Moving most of the code from your code-behind to a separate view model class means you can now write unit tests against the view model without any knowledge of a view (UserControl). Multiple UIs - Let's just say that you've created a killer app, it's running in the browser, and maybe you've even made it run out-of-browser. Now what if your boss comes to you and says, "I heard about this new Windows Phone 7 device that is coming out later this year. Can you start porting the app to that device?". Well, now you have to create a new UI (UserControls, etc.) because you have a lot less screen real estate to work with. So what do you do, copy all of your existing UserControls, paste them, rename them, and then start changing the code? Hmm, that doesn't sound so good. But wait, if most of the code that makes your browser-based app tick lives in view model classes, now you can create new view (UserControls) for Windows Phone 7 that reference the same view model classes as your browser-based app. Page state - In Silverlight you're at some point going to be faced with the same issue you dealt with for years in ASP.NET, maintaining page state. Let's say a user hits your Products page, does some stuff (filters record, etc.), then leaves the page and comes back later. It would be best if the Products page was in the same state as when they left it right? Well, if you've thrown away your view (UserControl or Page) and moved off to another part of the UI, when you come back to Products you're probably going to re-instantiate your view...which will put it right back in the state it was when it started. Hmm, not good. Well, with a little help from MEF you can store the state in your view model class, MEF will keep that view model instance hanging around in memory, and then you simply rebind your view to the view model class. I made that sound easy, but it's actually a bit of work to properly store and restore the state. At least it can be done though, which will make your users a lot happier! I'll talk more about this in an upcoming blog post. No event handlers? Another nice thing about MVVM is that you can bind your UserControls to the view model, which may eliminate the need for event handlers in your code-behind. So instead of having a Click handler on a Button (or RadMenuItem), for example, you can now bind your control's Command property to a DelegateCommand in your view model (I'll talk more about Commands in an upcoming post). Instead of having a SelectionChanged event handler on your RadGridView you can now bind its SelectedItem property to a property in your view model, and each time the user clicks a row, the view model property's setter will be called. Now through the magic of binding we can eliminate the need for traditional code-behind based event handlers on our user interface controls, and the best thing is that the view model knows about everything that's going on...which means we can test things without a user interface. The brains of the operation So what we're seeing here is that the view is now just a dumb layer that binds to the view model, and that the view model is in control of just about everything, like what happens when a RadGridView row is selected, or when a RadComboBoxItem is selected, or when a RadMenuItem is clicked. It is also responsible for loading data when the page is hit, as well as kicking off data inserts, updates and deletions. Once again, all of this stuff can be tested without the need for a user interface. If the test works, then it'll work regardless of whether the user is hitting the browser-based version of your app, or the Windows Phone 7 version. Nice! The database Before running the code for this app you will need to create the database. First, create a database called MVVMProject in SQL Server, then run MVVMProject.sql in the MVVMProject/Database directory of your downloaded .zip file. This should give you a Task table with 3 records in it. When you fire up the solution you will also need to update the connection string in web.config to point to your database instead of IBM12\SQLSERVER2008. The code One note about this code is that it runs against the latest Silverlight 4 RC and WCF RIA Services code. Please see my first blog post about updating to the RC bits. Beta to RC - Part 1 At the top of this post is a link to a sample project that demonstrates a sample application with a Tasks page that uses the MVVM pattern. This is a simplified version of how I have implemented the Tasks page in the Task-It application. Youll notice that Tasks.xaml has very little code to it. Just a TextBlock that displays the page title and a ContentControl. <StackPanel>     <TextBlock Text="Tasks" Style="{StaticResource PageTitleStyle}"/>     <Rectangle Style="{StaticResource StandardSpacerStyle}"/>     <ContentControl x:Name="ContentControl1"/> </StackPanel> In List.xaml we have a RadGridView. Notice that the ItemsSource is bound to a property in the view model class call Tasks, SelectedItem is bound to a property in the view model called SelectedItem, and IsBusy is bound to a property in the view model called IsLoading. <Grid>     <telerikGridView:RadGridView ItemsSource="{Binding Tasks}" SelectedItem="{Binding SelectedItem, Mode=TwoWay}"                                  IsBusy="{Binding IsLoading}" AutoGenerateColumns="False" IsReadOnly="True" RowIndicatorVisibility="Collapsed"                IsFilteringAllowed="False" ShowGroupPanel="False">         <telerikGridView:RadGridView.Columns>             <telerikGridView:GridViewDataColumn Header="Name" DataMemberBinding="{Binding Name}" Width="3*"/>             <telerikGridView:GridViewDataColumn Header="Due" DataMemberBinding="{Binding DueDate}" DataFormatString="{}{0:d}" Width="*"/>         </telerikGridView:RadGridView.Columns>     </telerikGridView:RadGridView> </Grid> In Details.xaml we have a Save button that is bound to a property called SaveCommand in our view model. We also have a simple form (Im using a couple of controls here from Silverlight.FX for the form layout, FormPanel and Label simply because they make for a clean XAML layout). Notice that the FormPanel is also bound to the SelectedItem in the view model (the same one that the RadGridView is). The two form controls, the TextBox and RadDatePicker) are bound to the SelectedItem's Name and DueDate properties. These are properties of the Task object that WCF RIA Services creates. <StackPanel>     <Button Content="Save" Command="{Binding SaveCommand}" HorizontalAlignment="Left"/>     <Rectangle Style="{StaticResource StandardSpacerStyle}"/>     <fxui:FormPanel DataContext="{Binding SelectedItem}" Style="{StaticResource FormContainerStyle}">         <fxui:Label Text="Name:"/>         <TextBox Text="{Binding Name, Mode=TwoWay}"/>         <fxui:Label Text="Due:"/>         <telerikInput:RadDatePicker SelectedDate="{Binding DueDate, Mode=TwoWay}"/>     </fxui:FormPanel> </StackPanel> In the code-behind of the Tasks control, Tasks.xaml.cs, I created an instance of the view model class (TasksViewModel) in the constructor and set it as the DataContext for the control. The Tasks page will load one of two child UserControls depending on whether you are viewing the list of tasks (List.xaml) or the form for editing a task (Details.xaml). // Set the DataContext to an instance of the view model class var viewModel = new TasksViewModel(); DataContext = viewModel;   // Child user controls (inherit DataContext from this user control) List = new List(); // RadGridView Details = new Details(); // Form When the page first loads, the List is loaded into the ContentControl. // Show the RadGridView first ContentControl1.Content = List; In the code-behind we also listen for a couple of the view models events. The ItemSelected event will be fired when the user clicks on a record in the RadGridView in the List control. The SaveCompleted event will be fired when the user clicks Save in the Details control (the form). Here the view model is in control, and is letting the view know when something needs to change. // Listeners for the view model's events viewModel.ItemSelected += OnItemSelected; viewModel.SaveCompleted += OnSaveCompleted; The event handlers toggle the view between the RadGridView (List) and the form (Details). void OnItemSelected(object sender, RoutedEventArgs e) {     // Show the form     ContentControl1.Content = Details; }   void OnSaveCompleted(object sender, RoutedEventArgs e) {     // Show the RadGridView     ContentControl1.Content = List; } In TasksViewModel, we instantiate a DataContext object and a SaveCommand in the constructor. DataContext is a WCF RIA Services object that well use to retrieve the list of Tasks and to save any changes to a task. Ill talk more about this and Commands in future post, but for now think of the SaveCommand as an event handler that is called when the Save button in the form is clicked. DataContext = new DataContext(); SaveCommand = new DelegateCommand(OnSave); When the TasksViewModel constructor is called we also make a call to LoadTasks. This sets IsLoading to true (which causes the RadGridViews busy indicator to appear) and retrieves the records via WCF RIA Services.         public LoadOperation<Task> LoadTasks()         {             // Show the loading message             IsLoading = true;             // Get the data via WCF RIA Services. When the call has returned, called OnTasksLoaded.             return DataContext.Load(DataContext.GetTasksQuery(), OnTasksLoaded, false);         } When the data is returned, OnTasksLoaded is called. This sets IsLoading to false (which hides the RadGridViews busy indicator), and fires property changed notifications to the UI to let it know that the IsLoading and Tasks properties have changed. This property changed notification basically tells the UI to rebind. void OnTasksLoaded(LoadOperation<Task> lo) {     // Hide the loading message     IsLoading = false;       // Notify the UI that Tasks and IsLoading properties have changed     this.OnPropertyChanged(p => p.Tasks);     this.OnPropertyChanged(p => p.IsLoading); } Next lets look at the view models SelectedItem property. This is the one thats bound to both the RadGridView and the form. When the user clicks a record in the RadGridView its setter gets called (set a breakpoint and see what I mean). The other code in the setter lets the UI know that the SelectedItem has changed (so the form displays the correct data), and fires the event that notifies the UI that a selection has occurred (which tells the UI to switch from List to Details). public Task SelectedItem {     get { return _selectedItem; }     set     {         _selectedItem = value;           // Let the UI know that the SelectedItem has changed (forces it to re-bind)         this.OnPropertyChanged(p => p.SelectedItem);         // Notify the UI, so it can switch to the Details (form) page         NotifyItemSelected();     } } One last thing, saving the data. When the Save button in the form is clicked it fires the SaveCommand, which calls the OnSave method in the view model (once again, set a breakpoint to see it in action). public void OnSave() {     // Save the changes via WCF RIA Services. When the save is complete, call OnSaveCompleted.     DataContext.SubmitChanges(OnSaveCompleted, null); } In OnSave, we tell WCF RIA Services to submit any changes, which there will be if you changed either the Name or the Due Date in the form. When the save is completed, it calls OnSaveCompleted. This method fires a notification back to the UI that the save is completed, which causes the RadGridView (List) to show again. public virtual void OnSaveCompleted(SubmitOperation so) {     // Clear the item that is selected in the grid (in case we want to select it again)     SelectedItem = null;     // Notify the UI, so it can switch back to the List (RadGridView) page     NotifySaveCompleted(); } Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• A Communication System for XAML Applications

  - by psheriff

  In any application, you want to keep the coupling between any two or more objects as loose as possible. Coupling happens when one class contains a property that is used in another class, or uses another class in one of its methods. If you have this situation, then this is called strong or tight coupling. One popular design pattern to help with keeping objects loosely coupled is called the Mediator design pattern. The basics of this pattern are very simple; avoid one object directly talking to another object, and instead use another class to mediate between the two. As with most of my blog posts, the purpose is to introduce you to a simple approach to using a message broker, not all of the fine details. IPDSAMessageBroker Interface As with most implementations of a design pattern, you typically start with an interface or an abstract base class. In this particular instance, an Interface will work just fine. The interface for our Message Broker class just contains a single method “SendMessage” and one event “MessageReceived”. public delegate void MessageReceivedEventHandler( object sender, PDSAMessageBrokerEventArgs e); public interface IPDSAMessageBroker{  void SendMessage(PDSAMessageBrokerMessage msg);   event MessageReceivedEventHandler MessageReceived;} PDSAMessageBrokerMessage Class As you can see in the interface, the SendMessage method requires a type of PDSAMessageBrokerMessage to be passed to it. This class simply has a MessageName which is a ‘string’ type and a MessageBody property which is of the type ‘object’ so you can pass whatever you want in the body. You might pass a string in the body, or a complete Customer object. The MessageName property will help the receiver of the message know what is in the MessageBody property. public class PDSAMessageBrokerMessage{  public PDSAMessageBrokerMessage()  {  }   public PDSAMessageBrokerMessage(string name, object body)  {    MessageName = name;    MessageBody = body;  }   public string MessageName { get; set; }   public object MessageBody { get; set; }} PDSAMessageBrokerEventArgs Class As our message broker class will be raising an event that others can respond to, it is a good idea to create your own event argument class. This class will inherit from the System.EventArgs class and add a couple of additional properties. The properties are the MessageName and Message. The MessageName property is simply a string value. The Message property is a type of a PDSAMessageBrokerMessage class. public class PDSAMessageBrokerEventArgs : EventArgs{  public PDSAMessageBrokerEventArgs()  {  }   public PDSAMessageBrokerEventArgs(string name,     PDSAMessageBrokerMessage msg)  {    MessageName = name;    Message = msg;  }   public string MessageName { get; set; }   public PDSAMessageBrokerMessage Message { get; set; }} PDSAMessageBroker Class Now that you have an interface class and a class to pass a message through an event, it is time to create your actual PDSAMessageBroker class. This class implements the SendMessage method and will also create the event handler for the delegate created in your Interface. public class PDSAMessageBroker : IPDSAMessageBroker{  public void SendMessage(PDSAMessageBrokerMessage msg)  {    PDSAMessageBrokerEventArgs args;     args = new PDSAMessageBrokerEventArgs(      msg.MessageName, msg);     RaiseMessageReceived(args);  }   public event MessageReceivedEventHandler MessageReceived;   protected void RaiseMessageReceived(    PDSAMessageBrokerEventArgs e)  {    if (null != MessageReceived)      MessageReceived(this, e);  }} The SendMessage method will take a PDSAMessageBrokerMessage object as an argument. It then creates an instance of a PDSAMessageBrokerEventArgs class, passing to the constructor two items: the MessageName from the PDSAMessageBrokerMessage object and also the object itself. It may seem a little redundant to pass in the message name when that same message name is part of the message, but it does make consuming the event and checking for the message name a little cleaner – as you will see in the next section. Create a Global Message Broker In your WPF application, create an instance of this message broker class in the App class located in the App.xaml file. Create a public property in the App class and create a new instance of that class in the OnStartUp event procedure as shown in the following code: public partial class App : Application{  public PDSAMessageBroker MessageBroker { get; set; }   protected override void OnStartup(StartupEventArgs e)  {    base.OnStartup(e);     MessageBroker = new PDSAMessageBroker();  }} Sending and Receiving Messages Let’s assume you have a user control that you load into a control on your main window and you want to send a message from that user control to the main window. You might have the main window display a message box, or put a string into a status bar as shown in Figure 1. Figure 1: The main window can receive and send messages The first thing you do in the main window is to hook up an event procedure to the MessageReceived event of the global message broker. This is done in the constructor of the main window: public MainWindow(){  InitializeComponent();   (Application.Current as App).MessageBroker.     MessageReceived += new MessageReceivedEventHandler(       MessageBroker_MessageReceived);} One piece of code you might not be familiar with is accessing a property defined in the App class of your XAML application. Within the App.Xaml file is a class named App that inherits from the Application object. You access the global instance of this App class by using Application.Current. You cast Application.Current to ‘App’ prior to accessing any of the public properties or methods you defined in the App class. Thus, the code (Application.Current as App).MessageBroker, allows you to get at the MessageBroker property defined in the App class. In the MessageReceived event procedure in the main window (shown below) you can now check to see if the MessageName property of the PDSAMessageBrokerEventArgs is equal to “StatusBar” and if it is, then display the message body into the status bar text block control. void MessageBroker_MessageReceived(object sender,   PDSAMessageBrokerEventArgs e){  switch (e.MessageName)  {    case "StatusBar":      tbStatus.Text = e.Message.MessageBody.ToString();      break;  }} In the Page 1 user control’s Loaded event procedure you will send the message “StatusBar” through the global message broker to any listener using the following code: private void UserControl_Loaded(object sender,  RoutedEventArgs e){  // Send Status Message  (Application.Current as App).MessageBroker.    SendMessage(new PDSAMessageBrokerMessage("StatusBar",      "This is Page 1"));} Since the main window is listening for the message ‘StatusBar’, it will display the value “This is Page 1” in the status bar at the bottom of the main window. Sending a Message to a User Control The previous example sent a message from the user control to the main window. You can also send messages from the main window to any listener as well. Remember that the global message broker is really just a broadcaster to anyone who has hooked into the MessageReceived event. In the constructor of the user control named ucPage1 you can hook into the global message broker’s MessageReceived event. You can then listen for any messages that are sent to this control by using a similar switch-case structure like that in the main window. public ucPage1(){  InitializeComponent();   // Hook to the Global Message Broker  (Application.Current as App).MessageBroker.    MessageReceived += new MessageReceivedEventHandler(      MessageBroker_MessageReceived);} void MessageBroker_MessageReceived(object sender,  PDSAMessageBrokerEventArgs e){  // Look for messages intended for Page 1  switch (e.MessageName)  {    case "ForPage1":      MessageBox.Show(e.Message.MessageBody.ToString());      break;  }} Once the ucPage1 user control has been loaded into the main window you can then send a message using the following code: private void btnSendToPage1_Click(object sender,  RoutedEventArgs e){  PDSAMessageBrokerMessage arg =     new PDSAMessageBrokerMessage();   arg.MessageName = "ForPage1";  arg.MessageBody = "Message For Page 1";   // Send a message to Page 1  (Application.Current as App).MessageBroker.SendMessage(arg);} Since the MessageName matches what is in the ucPage1 MessageReceived event procedure, ucPage1 can do anything in response to that event. It is important to note that when the message gets sent it is sent to all MessageReceived event procedures, not just the one that is looking for a message called “ForPage1”. If the user control ucPage1 is not loaded and this message is broadcast, but no other code is listening for it, then it is simply ignored. Remove Event Handler In each class where you add an event handler to the MessageReceived event you need to make sure to remove those event handlers when you are done. Failure to do so can cause a strong reference to the class and thus not allow that object to be garbage collected. In each of your user control’s make sure in the Unloaded event to remove the event handler. private void UserControl_Unloaded(object sender, RoutedEventArgs e){  if (_MessageBroker != null)    _MessageBroker.MessageReceived -=         _MessageBroker_MessageReceived;} Problems with Message Brokering As with most “global” classes or classes that hook up events to other classes, garbage collection is something you need to consider. Just the simple act of hooking up an event procedure to a global event handler creates a reference between your user control and the message broker in the App class. This means that even when your user control is removed from your UI, the class will still be in memory because of the reference to the message broker. This can cause messages to still being handled even though the UI is not being displayed. It is up to you to make sure you remove those event handlers as discussed in the previous section. If you don’t, then the garbage collector cannot release those objects. Instead of using events to send messages from one object to another you might consider registering your objects with a central message broker. This message broker now becomes a collection class into which you pass an object and what messages that object wishes to receive. You do end up with the same problem however. You have to un-register your objects; otherwise they still stay in memory. To alleviate this problem you can look into using the WeakReference class as a method to store your objects so they can be garbage collected if need be. Discussing Weak References is beyond the scope of this post, but you can look this up on the web. Summary In this blog post you learned how to create a simple message broker system that will allow you to send messages from one object to another without having to reference objects directly. This does reduce the coupling between objects in your application. You do need to remember to get rid of any event handlers prior to your objects going out of scope or you run the risk of having memory leaks and events being called even though you can no longer access the object that is responding to that event. NOTE: You can download the sample code for this article by visiting my website at http://www.pdsa.com/downloads. Select “Tips & Tricks”, then select “A Communication System for XAML Applications” from the drop down list.

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• CodePlex Daily Summary for Friday, June 01, 2012

  CodePlex Daily Summary for Friday, June 01, 2012Popular ReleasesASP.Net Client Dependency Framework: v1.5: This release brings you many bug fixes and some new features Install via Nuget:Install-Package ClientDependency Install-Package ClientDependency-Mvc New featuresNew PlaceHolderProvider for webforms which will now let you specify exactly where the CSS and JS is rendered, so you can now separate them Better API support for runtime changes & registration Allows for custom formatting of composite file URLs new config option: pathUrlFormat="{dependencyId}/{version}/{type}" to have full contr...Silverlight 5 Multi-Window Controls: May 2012: This release introduces a new context menu type for desktop apps that can overflow the parent window: http://trelford.com/ContextMenu_SL5_Native.png Code snippet: <TextBlock Text="Right click on me to show the context menu"> <multiwindow:ContextMenuService.ContextMenu> <multiwindow:ContextMenuWindow> <multiwindow:MenuItem Header="Menu Item"/> </multiwindow:ContextMenuWindow> </multiwindow:ContextMenuService.Co...Better Explorer: Better Explorer Beta 1: Finally, the first Beta is here! There were a lot of changes, including: Translations into 10 different languages (the translations are not complete and will be updated soon) Conditional Select new tools for managing archives Folder Tools tab new search bar and Search Tab new image editing tools update function many bug fixes, stability fixes, and memory leak fixes other new features as well! Please check it out and if there are any problems, let us know. :) Also, do not forge...myManga: myManga v1.0.0.3: Will include MangaPanda as a default option. ChangeLog Updating from Previous Version: Extract contents of Release - myManga v1.0.0.3.zip to previous version's folder. Replaces: myManga.exe BakaBox.dll CoreMangaClasses.dll Manga.dll Plugins/MangaReader.manga.dll Plugins/MangaFox.manga.dll Plugins/MangaHere.manga.dll Plugins/MangaPanda.manga.dllPlayer Framework by Microsoft: Player Framework for Windows 8 Metro (Preview 3): Player Framework for HTML/JavaScript and XAML/C# Metro Style Applications. Additional DownloadsIIS Smooth Streaming Client SDK for Windows 8 Microsoft PlayReady Client SDK for Metro Style Apps Release notes:Support for Windows 8 Release Preview (released 5/31/12) Advertising support (VAST, MAST, VPAID, & clips) Miscellaneous improvements and bug fixesConfuser: Confuser 1.8: Changelog: +New UI...again. +New project system, replacing the previous declarative obfuscation and XML configuration. *Improve the protection strength... *Improve the compatibility. Now Confuser can obfuscate itself and even some real-life application like Paint.NET and ILSpy! (of course with some small adjustment)Naked Objects: Naked Objects Release 4.1.0: Corresponds to the packaged version 4.1.0 available via NuGet. Note that the versioning has moved to SemVer (http://semver.org/) This is a bug fix release with no new functionality. Please note that the easiest way to install and run the Naked Objects Framework is via the NuGet package manager: just search the Official NuGet Package Source for 'nakedobjects'. It is only necessary to download the source code (from here) if you wish to modify or re-build the framework yourself. If you do wi...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.54: Fix for issue #18161: pretty-printing CSS @media rule throws an exception due to mismatched Indent/Unindent pair.Silverlight Toolkit: Silverlight 5 Toolkit Source - May 2012: Source code for December 2011 Silverlight 5 Toolkit release.Json.NET: Json.NET 4.5 Release 6: New feature - Added IgnoreDataMemberAttribute support New feature - Added GetResolvedPropertyName to DefaultContractResolver New feature - Added CheckAdditionalContent to JsonSerializer Change - Metro build now always uses late bound reflection Change - JsonTextReader no longer returns no content after consecutive underlying content read failures Fix - Fixed bad JSON in an array with error handling creating an infinite loop Fix - Fixed deserializing objects with a non-default cons...DotNetNuke® Community Edition CMS: 06.02.00: Major Highlights Fixed issue in the Site Settings when single quotes were being treated as escape characters Fixed issue loading the Mobile Premium Data after upgrading from CE to PE Fixed errors logged when updating folder provider settings Fixed the order of the mobile device capabilities in the Site Redirection Management UI The User Profile page was completely rebuilt. We needed User Profiles to have multiple child pages. This would allow for the most flexibility by still f...Thales Simulator Library: Version 0.9.6: The Thales Simulator Library is an implementation of a software emulation of the Thales (formerly Zaxus & Racal) Hardware Security Module cryptographic device. This release fixes a problem with the FK command and a bug in the implementation of PIN block 05 format deconstruction. A new 0.9.6.Binaries file has been posted. This includes executable programs without an installer, including the GUI and console simulators, the key manager and the PVV clashing demo. Please note that you will need ...????: ????2.0.1: 1、?????。WiX Toolset: WiX v3.6 RC: WiX v3.6 RC (3.6.2928.0) provides feature complete Burn with VS11 support. For more information see Rob's blog post about the release: http://robmensching.com/blog/posts/2012/5/28/WiX-v3.6-Release-Candidate-availableJavascript .NET: Javascript .NET v0.7: SetParameter() reverts to its old behaviour of allowing JavaScript code to add new properties to wrapped C# objects. The behavior added briefly in 0.6 (throws an exception) can be had via the new SetParameterOptions.RejectUnknownProperties. TerminateExecution now uses its isolate to terminate the correct context automatically. Added support for converting all C# integral types, decimal and enums to JavaScript numbers. (Previously only the common types were handled properly.) Bug fixe...Phalanger - The PHP Language Compiler for the .NET Framework: 3.0 (May 2012): Fixes: unserialize() of negative float numbers fix pcre possesive quantifiers and character class containing ()[] array deserilization when the array contains a reference to ISerializable parsing lambda function fix round() reimplemented as it is in PHP to avoid .NET rounding errors filesize bypass for FileInfo.Length bug in Mono New features: Time zones reimplemented, uses Windows/Linux databaseSharePoint Euro 2012 - UEFA European Football Predictor: havivi.euro2012.wsp (1.1): New fetures:Admin enable / disable match Hide/Show Euro 2012 SharePoint lists (3 lists) Installing SharePoint Euro 2012 PredictorSharePoint Euro 2012 Predictor has been developed as a SharePoint Sandbox solution to support SharePoint Online (Office 365) Download the solution havivi.euro2012.wsp from the download page: Downloads Upload this solution to your Site Collection via the solutions area. Click on Activate to make the web parts in the solution available for use in the Site C...????SDK for .Net 4.0+(OAuth2.0+??V2?API): ??V2?SDK???: ?????????API?? ???????OAuth2.0?? ????：????????????，??????????“SOURCE CODE”?????????Changeset，http://weibosdk.codeplex.com/SourceControl/list/changesets ???：????????，DEMO??AppKey????????????????，?????AppKey，????AppKey???????????，?????“????>????>????>??????”.Net Code Samples: Code Samples: Code samples (SLNs).LINQ_Koans: LinqKoans v.02: Cleaned up a bitNew ProjectsAntiXSS Experimental: Welcome to AntiXSS Experimental. AntiXSS Experimental contains code for common encoders auto-generated using Microsoft Research's BEK project.atfone: atfoneBango Adobe Air Application Analytics SDK: Bango application analytics is an analytics solution for mobile applications. This SDK provides a framework you can use in your application to add analytics capabilities to your mobile applications. It's developed in Actionscript with Native Extensions to target iOS,Android and the Blackberry Playbook.bbinjest: bbinjestdevMobile.NET Library for Windows Phone 7.1: devMobile.NET Library intends to offer a set of commons and not so commons controls for developing Windows Phone 7.5 applications. It offers classic controls like both pie and column charts for simple scenarios as well as other not so classic controls like SignalAccuracy control for displaying, for instance, the GPS accuracy like WP7 built-in GPRS/3G signal coverage indicator does. It also provide a tag cloud control for displaying item in the way common web based tag clouds usually offer. ...dnnFiddle: dnnFiddle is a DotNetNuke module that aims to make it easier to add rich content to your DotNetNuke website.DotNetNuke Task Manager: Test Project to learn DotNetNuke and CodePlex IntegrationDSIB - TireService: Project for handling Tiresets/Wheels - looking up dimensions, loadindex, speedindex, etc. for wheelsflyabroad: flyabroadhphai: My ProjectIIS File Manager - Editor: IIS File Manager provides ability to upload files faster through HTTP and it requires no extra installation, just one website with windows authentication lets users upload files easily.KeypItSafe Password Vault: KeypItSafe Password Vault Easily and safely store your website passwords on your computer - or go mobile in just a few clicks! What is KeypItSafe? KeypItSafe is a free open source password manager that helps you store and manage all of your passwords securely on your computer or a USB/Removable Media drive. With only a few clicks you can transfer all of your saved passwords to a USB drive and immediately have access to them on virtually any computer. You only have to remember one mas...litwaredk: Sourcecode for the projects on www.litware.dkMVC Pattern Toolkit (Sample): This is a sample MVC pattern toolkit that helps web developers create ASP.NET MVC 2 web applications using advanced tooling and automation, with integrated guidance. This toolkit is provided as a *sample* soley to demonstrate how easy pattern toolkits can be created that provide custom automation and tooling in Visual Studio to speed development. *NOTE*: This pattern toolkit is not intended to demonstrate THE official way to build ASP.NET MVC applications. It is intended to demonstrate ...MyDeveloperCareer: willwymydevelopercarMyPomodoroWatch: My personal Pomodoro watch.NRails: NRailsPayment Gateways: Open source project for integrating payment gateways all over the world into .NET websites and desktop applications. Developers are requested to submit their code and check out the project to start contributing.Preactor Object Model: pom is a Preactor library which provides easy access and manipulation of Preactor data.RgC: RuCSecondPong: blablablaSharp Home: Sharphome is designed to run on Windows and Linux (via the Mono Project) and is designed to be useful in home automation and home security.SharpPTC: SharpPTC is a framebuffer library designed for creating retro games and applications, built on DirectDraw targeting the .NET platform. It provides a simple pixel buffer and methods to ease drawing (line, rectangle, clear etc). SharpPTC also comes with limited keyboard support.simplesocxs: simplesocxsSQL Process Viewer: View all of the processes (that you have security to see) currently running on a SQL database.testtom05312012git02: fdsfdText-To-Speech with Microsoft Translator Service: With this library, you can easily add Text-To-Speech capabilities to your .NET applications. It uses the Microsoft Translator Service to obtain streams of file speaking text in the desired language. At the moment of writing, there are 44 supported languages, including English, Italian, German, French, Spanish, Japanese and Chinese.ultsvn: The description.umbracoCssZenGarden: This is a learning package, It's not supposed to be a best practice for content management, just a fun test to see what a content managed cssZenGarden might be like.Visual Studio Solution Code Format AddIn: 0 people following this project (follow) VS???????? ????????：http://www.cnblogs.com/viter/addin ??Visual Studio 2008?2010，???????????，???????????"version“????。 ????namespace , class , struct , enum , property ，?????????(??????Function)??????Function，????????。 ???????、????。 ????Function????????????xml???，???????BUG，????Function???。 ??? class , struct , enum , property , Function??#region #endregion?????。 ????Property ? Function ???????，?Property????“?????? ”??。 ?????...Viz, Simple 3D Control inspired by Processing.orgVolunteerManager: Its a small app that manages volunteers in a volunteer organization.WebLearningFS: Dokan Based Web Learning File SystemWindowsPhonePusherSLService: Silverlight Pusher for WPhoneWindowsPhonePusherWcfService: for pushing same to wphone tooWPF Encryption: This develop a application for encryption/encode a string or checksum a fileXNAGameFeatures: XNAGameFeatures Project XNAGameFeatures is a XNA 4.0 library which permit to create and manage a XNA game easily. The project is separate in five part : BasicGame library Widget library Shapes library Input library Features library Each part is thinking to offer a easy way to the creation of a game in XNA 4.0

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• CodePlex Daily Summary for Saturday, May 10, 2014

  CodePlex Daily Summary for Saturday, May 10, 2014Popular ReleasesTerraMap (Terraria World Map Viewer): TerraMap 1.0.3.14652: Added support for the new Terraria v1.2.4 update. New items, walls, and tiles The setup file will make sure .NET 4 is installed, install TerraMap, create desktop and start menu shortcuts, add a .wld file association, and launch TerraMap. If you prefer the zip file, make sure you have .NET Framework v4.5 installed, then just download and extract the ZIP file, and run TerraMap.exe.R.NET: R.NET 1.5.12: R.NET 1.5.12 is a beta release towards R.NET 1.6. You are encouraged to use 1.5.12 now and give feedback. See the documentation for setup and usage instructions. Main changes for R.NET 1.5.12: The C stack limit was not disabled on Windows. For reasons possibly peculiar to R, this means that non-concurrent access to R from multiple threads was not stable. This is now fixed, with the fix validated with a unit test. Thanks to Odugen, skyguy94, and previously others (evolvedmicrobe, tomasp) fo...CTI Text Encryption: CTI Text Encryption 5.2: Change log: 5.2 - Remove Cut button. - Fixed Reset All button does not reset encrypted text column. - Switch button location between Copy and Paste. - Enable users to use local fonts to display characters of their language correctly. (A font settings file will be saved at the same folder of this program.) 5.1 - Improve encryption process. - Minor UI update. - Version 5.1 is not compatible with older version. 5.0 - Improve encryption algorithm. - Simply inner non-encryption related mec...SEToolbox: SEToolbox 01.029.006 Release 1: Fix to allow keyboard search on load dialog. (type the first few letters of your save) Fixed check for new release. Changed the way ship details are loaded to alleviate load time for worlds with very large ships (100,000+ blocks). Fixed Image importer, was incorrectly listing 'Asteroid' as import option. Minor changes to menus (text and appearance) for clarity and OS consistency. Added in reading of world palette for color dialog editor. WIP on subsystem editor. Can now multiselec...Media Companion: Media Companion MC3.597b: Thank you for being patient, againThere are a number of fixes in place with this release. and some new features added. Most are self explanatory, so check out the options in Preferences. Couple of new Features:* Movie - Allow save Title and Sort Title in Title Case format. * Movie - Allow save fanart.jpg if movie in folder. * TV - display episode source. Get episode source from episode filename. Fixed:* Movie - Added Fill Tags from plot keywords to Batch Rescraper. * Movie - Fixed TMDB s...SimCityPak: SimCityPak 0.3.0.0: Contains several bugfixes, newly identified properties and some UI improvements. Main new features UI overhaul for the main index list: Icons for each different index, including icons for different property files Tooltips for all relevant fields Removed clutter Identified hundreds of additional properties (thanks to MaxisGuillaume) - this should make modding gameplay easierSeal Report: Seal Report 1.4: New Features: Report Designer: New option to convert a Report Source into a Repository Source. Report Designer: New contextual helper menus to select, remove, copy, prompt elements in a model. Web Server: New option to expand sub-folders displayed in the tree view. Web Server: Web Folder Description File can be a .cshtml file to display a MVC View. Views: additional CSS parameters for some DIVs. NVD3 Chart: Some default configuration values have been changed. Issues Addressed:16 ...Magick.NET: Magick.NET 6.8.9.002: Magick.NET linked with ImageMagick 6.8.9.0.VidCoder: 1.5.22 Beta: Added ability to burn SRT subtitles. Updated to HandBrake SVN 6169. Added checks to prevent VidCoder from running with a database version newer than it expects. Tooltips in the Advanced Video panel now trigger on the field labels as well as the fields themselves. Fixed updating preset/profile/tune/level settings on changing video encoder. This should resolve some problems with QSV encoding. Fixed tunes and profiles getting set to blank when switching between x264 and x265. Fixed co...NuGet: NuGet 2.8.2: We will be releasing a 2.8.2 version of our own NuGet packages and the NuGet.exe command-line tool. The 2.8.2 release will not include updated VS or WebMatrix extensions. NuGet.Server.Extensions.dll needs to be used alongside NuGet-Signed.exe to provide the NuGet.exe mirror functionality.DNN CMS Platform: 07.03.00 BETA (Not For Production Use): DNN 7.3 release is focused on performance and we have made a variety of changes to improve the run-time characteristics of the platform. End users will notice faster page response time and administrators will appreciate a more responsive user experience, especially on larger scale web sites. This is a BETA release and is NOT recommended for production use. There is no upgrade path offered from this release to the final DNN 7.3 release. Known Issues - The Telerik RAD Controls for ASP.NET AJA...SmartStore.NET - Free ASP.NET MVC Ecommerce Shopping Cart Solution: SmartStore.NET 2.0.2: SmartStore.NET 2.0.2 is primarily a maintenance release for version 2.0.0, which has been released on April 04 2014. It contains several improvements & important fixes. BugfixesIMPORTANT FIX: Memory leak leads to OutOfMemoryException in application after a while Installation fix: some varchar(MAX) columns get created as varchar(4000). Added a migration to fix the column specs. Installation fix: Setup fails with exception Value cannot be null. Parameter name: stream Bugfix for stock iss...Channel9's Absolute Beginner Series: Windows Phone 8.1: Entire source code for Windows Phone 8.1 Absolute Beginner Series.BIDS Helper: BIDS Helper 1.6.6: This BIDS Helper beta release brings support for SQL Server 2014 and SSDTBI for Visual Studio 2013. (Note that SSDTBI for Visual Studio 2013 is currently unavailable to download from Microsoft. We are releasing BIDS Helper support to help those who downloaded it before it became unavailable, and we will recheck BIDS Helper 2014 is compatible after SSDTBI becomes available to download again.) BIDS Helper 2014 Beta Limitations: SQL Server 2014 support for Biml is still in progress, so this bet...Windows Phone IsoStoreSpy (a cool WP8.1 + WP8 Isolated Storage Explorer): IsoStoreSpy WP8.1 3.0.0.0 (Win8 only): 3.0.0.0 + WP8.1 & WP8 device allowed + Local, Roaming or Temp directory Selector for WindowsRuntime apps + Version number in the title :)CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.24.0: ShortcutMapping panel now allows direct modification of the shortcuts. Custom updater dropped support for MSI installation but it still allows downloading of MSI http://www.csscript.net/npp/codeplex/non_msi_update.pngProDinner - ASP.NET MVC Sample (EF5, N-Tier, jQuery): 8.2: upgrade to mvc 5 upgrade to ASP.net MVC Awesome 4.0, EF 6.1, latest jcrop, Windsor Castle etc. ability to show/hide the dog using tinymce for the feedback page mobile friendly uiASP.net MVC Awesome - jQuery Ajax Helpers: 4.0: version 4.0 ========================== - added InitPopup, InitPopupForm helpers, open initialized popups using awe.open(name, params) - added Tag or Tags for all helpers, usable in mod code - added popup aweclose, aweresize events - popups have api accessible via .data('api'), with methods open, close and destroy - all popups have .awe-popup class - popups can be grouped using .Group(string), only 1 popup in the same group can exist at the same time - added awebeginload event for...ScreenToGif: Release 1.0: What's new: • Small UI tweaks everywhere. • You can add Text, Subtitles and Title Frames. • Processing the gif now takes less time. • Languages: Spanish, Italian and Tamil added. • Single .exe multi language. • Takes less time to apply blur and pixelated efect. • Restart button. • Language picker. (If the user wants to select a diferent language than the system's) • "Encoding Finished" page with a link to open the file. • GreenScreen unchanged pixels to save kilobytes. • "Check for Updates" t...Touchmote: Touchmote 1.0 beta 11: Changes Support for multiple monitor setup Additional settings for analog sticks More reliable pairing Bug fixes and improvementsNew ProjectsADO: copy rightAntilop: Antilop is a professionnal C# business and data access framework.Bit Consulting Business Information Technology Blog: Espacio creado para todos los interesados en intercambiar información, opinar, preguntar todo lo relacionado con los productos ofrecidos por BIT CONSULTING.Black Desert C# emulator(Necroz Project): Development Black Desert emulatorDSLK: bai tap ctdl&gtFreelancerWebSecurity: FreelancerWebSecurityGlobal Machine Access: The project provides an intuitive interface computer control via the command line window. Features: - Login, logout, change password. - Execute commands inHeadTS: An alternative to the HeadJS script loader that provides a more focused, robust, promise-based script management system.How to develop an autodialer / predictive dialer in C#: This project demonstrates how to build a VoIP autodialer in C# in order to be able to make a huge amount of simultaneous calls automatically.html5demo: demo web app.NetPipe: A new piece of software in python that will allow programs to be executed on other computers / servers over a network.Observer Pattern: This project shows how the observer design pattern works.Our wedding: Ruben y Sarahi wedding 19-09-2014SpreadsheetComputations: Good stuffSpurnUI: jQuery based professional ASP.NET Controls for moblieStrategy Pattern: This project shows how the strategy design pattern works.TagIt-MP3: TagIt-MP3 is a free audio file data tagging ID3 format editor, support ID3 tag version, this audio tool can read and write metadata tags for MP3 audio files.TeamProjectDaNang: Ðà N?ng nhóm l?p trình :DThaumcraft4 Research: A small application to help players of Minecraft / Thaumcraft 4 complete their research projects.Visualize and Analyze Demand for Coding Skills, Using WPF: Use data visualization app to figure-out which job skills are most in demand. WPlayer: This project using ffmpeg library, based on Media Foundation. Yammer API SDK: A C# Yammer API SDK?????-?????【??】???????: ????????????????、?????????,??????、??????????????????,???????.??????????,????????。 ??????-??????【??】??????????: ??????????????????,???????、????、????、??????、???????,??????,???????????。?????-?????【??】???????: ??????????1992?,????????????????。??????????????????????。????????????,????，????????！ ?????-?????【??】?????????: ???????????????,???????、???????????,????????,????,?????????,??????,??????! ?????-?????【??】?????????: ???????,??????,?????????????????????,???????????????????????。?????-?????【??】???????: ???????????:?????,??????!???????????????,???????、?????、??????“??”????,????,????!?????-?????【??】???????: ???????????????????,???,??????????、???????????????????。??????,????、????，??????！ ?????-?????【??】???????: ???????????????,????,?????、???、?????,???????,?????,???????????100%。??????！ ?????-?????【??】????? ??: ?????????????????????????,???????????,??????,??????????????...????????。??????！??????-??????【??】??????????: ??????????????????,??:??????,????,????,????,?????,??????????????.??????-??????【??】??????????: ????????????????????,?????????????,???????????.????????????,????????????! ?????-?????【??】???????: ?????????????????????????,???????????,??????,??????????????...????????。??????！????-????【??】????????: ????????????????、?????、?????、????、?????,??????????。????????????????!?????-?????【??】?????????: ??????,??,????????。 ... ??????????????????、??????????????????...?????-?????【??】?????????: ?????????????:????,????,????,???????,????????,??????:????????,?????!??????-??????【??】????????: ?????????????????????、????、????、??????、???????,??????、??????。??????-??????【??】??????????: ????????,??????,?????????????????????,???????????????????????。 ?????-?????【??】???????: ??????????????????????????,??????,???????????,????????????????,????????.??????. ????-????【??】????????: ??????????????,???????、???????????,????????,????,?????????,??????,??????!?????-?????【??】?????: ?????????????????,???????、????、????、??????、???????,??????,???????????。?????-?????【??】???????: ????????????、????、????、??????、????、???????,?????,?????????!?????-?????【??】?????????: ???????????????????????、??????,????、?????、????， ?????????，?????????????！ ??????-??????【??】??????????: ?????????????????????、????、????、??????、???????,??????、??????。?????-??????【??】???????: ?????????,???????????,??????????,????:??,????,???????? ??????????,????????。??????！?????-?????【??】?????????: ???????????????????????、??????,????、?????、????， ?????????，?????????????！?????-?????【??】?????????: ??????????????、????、????、??????、????、???????,?????,?????????!??????-??????【??】??????????: ?????????????????"????,????"???,????????????????????????,??????????????。 ?????-?????【??】???????: ????????????????、?????????,??????、??????????????????,???????.??????????,????????。 ????-????【??】????????: ????????????????????????,???????????????,????????????????！ ?????-?????【??】?????????: ?????,?????????,?????????????。?????????????,?????????,???????。??????-??????【??】??????????: ????????????????,????:????,????,????,??????,?????,???????????????!?????-?????【??】???????: ???????????:?????,??????!???????????????,???????、?????、??????“??”????,????,????! ?????-?????【??】?????????: ?????????????????????????、??????????????,??????????????。?????-?????【??】?????????: ???????????????,????????????,?????????????????,??????,????????!?????-?????【??】?????????: ??????????????????????,????????????,?????、??、????,?????,??????！ ?????-?????【??】???????: ????????????????????????,????,????“???、???、???”?????,?????,?????????????????。??????！ ??????-??????【??】????????: ??????????????????????????、??????????????,??????????????。??????-??????【??】??????????: ?????????????????"????,????"???,????????????????????????,??????????????。????-????【??】????????: ????,?????????,?????????????。?????????????,?????????,???????。 ?????-?????【??】???????: ?????????????????、????、??????、????????,????????????,???????????！?????-?????【??】???????: ???????????????,????????????,?????????????????,??????,????????!?????-?????【??】?????????: ???????????????,????:????,????,????,??????,?????,???????????????! ??????-??????【??】????: ???????????????:?????? ???? ??????,???????,??????,???????。??????-??????【??】????????: ??????????????????、????、??????、????????,????????????,???????????！?????-?????【??】???????: ???????????????????,????????????,????????,???,???????????,????,????。?????,??????.????-????【??】??????: ?????????????????????????,???????????????????????,???????。?????-?????【??】???????: ???????????,????,??????????? ???? ???? ?????????,???,??,?????!

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• Difference between Factory Method and Abstract Factory design patterns using C#.Net

  - by nijhawan.saurabh

  First of all I'll just put both these patterns in context and describe their intent as in the GOF book: Factory Method: Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses.   Abstract Factory: Provide an interface for creating families of related or dependent objects without specifying their concrete classes.   Points to note:   Abstract factory pattern adds a layer of abstraction to the factory method pattern. The type of factory is not known to the client at compile time, this information is passed to the client at runtime (How it is passed is again dependent on the system, you may store this information in configuration files and the client can read it on execution). While implementing Abstract factory pattern, the factory classes can have multiple factory methods. In Abstract factory, a factory is capable of creating more than one type of product (Simpilar products are grouped together in a factory)   Sample implementation of factory method pattern   Let's see the class diagram first:                   ProductFactory.cs // ----------------------------------------------------------------------- // <copyright file="ProductFactory.cs" company=""> // TODO: Update copyright text. // </copyright> // -----------------------------------------------------------------------   namespace FactoryMethod {     using System;     using System.Collections.Generic;     using System.Linq;     using System.Text;       /// <summary>     /// TODO: Update summary.     /// </summary>     public abstract class ProductFactory     {         /// <summary>         /// </summary>         /// <returns>         /// </returns>         public abstract Product CreateProductInstance();     } }     ProductAFactory.cs // ----------------------------------------------------------------------- // <copyright file="ProductAFactory.cs" company=""> // TODO: Update copyright text. // </copyright> // -----------------------------------------------------------------------   namespace FactoryMethod {     using System;     using System.Collections.Generic;     using System.Linq;     using System.Text;       /// <summary>     /// TODO: Update summary.     /// </summary>     public class ProductAFactory:ProductFactory     {         public override Product CreateProductInstance()         {             return new ProductA();         }     } }         // ----------------------------------------------------------------------- // <copyright file="ProductBFactory.cs" company=""> // TODO: Update copyright text. // </copyright> // -----------------------------------------------------------------------   namespace FactoryMethod {     using System;     using System.Collections.Generic;     using System.Linq;     using System.Text;       /// <summary>     /// TODO: Update summary.     /// </summary>     public class ProductBFactory:ProductFactory     {         public override Product CreateProductInstance()         {             return new ProductB();           }     } }     // ----------------------------------------------------------------------- // <copyright file="Product.cs" company=""> // TODO: Update copyright text. // </copyright> // -----------------------------------------------------------------------   namespace FactoryMethod {     using System;     using System.Collections.Generic;     using System.Linq;     using System.Text;       /// <summary>     /// TODO: Update summary.     /// </summary>     public abstract class Product     {         public abstract string Name { get; set; }     } }     // ----------------------------------------------------------------------- // <copyright file="ProductA.cs" company=""> // TODO: Update copyright text. // </copyright> // -----------------------------------------------------------------------   namespace FactoryMethod {     using System;     using System.Collections.Generic;     using System.Linq;     using System.Text;       /// <summary>     /// TODO: Update summary.     /// </summary>     public class ProductA:Product     {         public ProductA()         {               Name = "ProductA";         }           public override string Name { get; set; }     } }       // ----------------------------------------------------------------------- // <copyright file="ProductB.cs" company=""> // TODO: Update copyright text. // </copyright> // -----------------------------------------------------------------------   namespace FactoryMethod {     using System;     using System.Collections.Generic;     using System.Linq;     using System.Text;       /// <summary>     /// TODO: Update summary.     /// </summary>     public class ProductB:Product     {          public ProductB()         {               Name = "ProductA";         }         public override string Name { get; set; }     } }     Program.cs using System; using System.Collections.Generic; using System.Linq; using System.Text;   namespace FactoryMethod {     class Program     {         static void Main(string[] args)         {             ProductFactory pf = new ProductAFactory();               Product product = pf.CreateProductInstance();             Console.WriteLine(product.Name);         }     } }       Normal 0 false false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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• Loosely coupled .NET Cache Provider using Dependency Injection

  - by Rhames

  I have recently been reading the excellent book “Dependency Injection in .NET”, written by Mark Seemann. I do not generally buy software development related books, as I never seem to have the time to read them, but I have found the time to read Mark’s book, and it was time well spent I think. Reading the ideas around Dependency Injection made me realise that the Cache Provider code I wrote about earlier (see http://geekswithblogs.net/Rhames/archive/2011/01/10/using-the-asp.net-cache-to-cache-data-in-a-model.aspx) could be refactored to use Dependency Injection, which should produce cleaner code. The goals are to: Separate the cache provider implementation (using the ASP.NET data cache) from the consumers (loose coupling). This will also mean that the dependency on System.Web for the cache provider does not ripple down into the layers where it is being consumed (such as the domain layer). Provide a decorator pattern to allow a consumer of the cache provider to be implemented separately from the base consumer (i.e. if we have a base repository, we can decorate this with a caching version). Although I used the term repository, in reality the cache consumer could be just about anything. Use constructor injection to provide the Dependency Injection, with a suitable DI container (I use Castle Windsor). The sample code for this post is available on github, https://github.com/RobinHames/CacheProvider.git ICacheProvider In the sample code, the key interface is ICacheProvider, which is in the domain layer. 1: using System; 2: using System.Collections.Generic; 3:   4: namespace CacheDiSample.Domain 5: { 6: public interface ICacheProvider<T> 7: { 8: T Fetch(string key, Func<T> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry); 9: IEnumerable<T> Fetch(string key, Func<IEnumerable<T>> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry); 10: } 11: }   This interface contains two methods to retrieve data from the cache, either as a single instance or as an IEnumerable. the second paramerter is of type Func<T>. This is the method used to retrieve data if nothing is found in the cache. The ASP.NET implementation of the ICacheProvider interface needs to live in a project that has a reference to system.web, typically this will be the root UI project, or it could be a separate project. The key thing is that the domain or data access layers do not need system.web references adding to them. In my sample MVC application, the CacheProvider is implemented in the UI project, in a folder called “CacheProviders”: 1: using System; 2: using System.Collections.Generic; 3: using System.Linq; 4: using System.Web; 5: using System.Web.Caching; 6: using CacheDiSample.Domain; 7:   8: namespace CacheDiSample.CacheProvider 9: { 10: public class CacheProvider<T> : ICacheProvider<T> 11: { 12: public T Fetch(string key, Func<T> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry) 13: { 14: return FetchAndCache<T>(key, retrieveData, absoluteExpiry, relativeExpiry); 15: } 16:   17: public IEnumerable<T> Fetch(string key, Func<IEnumerable<T>> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry) 18: { 19: return FetchAndCache<IEnumerable<T>>(key, retrieveData, absoluteExpiry, relativeExpiry); 20: } 21:   22: #region Helper Methods 23:   24: private U FetchAndCache<U>(string key, Func<U> retrieveData, DateTime? absoluteExpiry, TimeSpan? relativeExpiry) 25: { 26: U value; 27: if (!TryGetValue<U>(key, out value)) 28: { 29: value = retrieveData(); 30: if (!absoluteExpiry.HasValue) 31: absoluteExpiry = Cache.NoAbsoluteExpiration; 32:   33: if (!relativeExpiry.HasValue) 34: relativeExpiry = Cache.NoSlidingExpiration; 35:   36: HttpContext.Current.Cache.Insert(key, value, null, absoluteExpiry.Value, relativeExpiry.Value); 37: } 38: return value; 39: } 40:   41: private bool TryGetValue<U>(string key, out U value) 42: { 43: object cachedValue = HttpContext.Current.Cache.Get(key); 44: if (cachedValue == null) 45: { 46: value = default(U); 47: return false; 48: } 49: else 50: { 51: try 52: { 53: value = (U)cachedValue; 54: return true; 55: } 56: catch 57: { 58: value = default(U); 59: return false; 60: } 61: } 62: } 63:   64: #endregion 65:   66: } 67: }   The FetchAndCache helper method checks if the specified cache key exists, if it does not, the Func<U> retrieveData method is called, and the results are added to the cache. Using Castle Windsor to register the cache provider In the MVC UI project (my application root), Castle Windsor is used to register the CacheProvider implementation, using a Windsor Installer: 1: using Castle.MicroKernel.Registration; 2: using Castle.MicroKernel.SubSystems.Configuration; 3: using Castle.Windsor; 4:   5: using CacheDiSample.Domain; 6: using CacheDiSample.CacheProvider; 7:   8: namespace CacheDiSample.WindsorInstallers 9: { 10: public class CacheInstaller : IWindsorInstaller 11: { 12: public void Install(IWindsorContainer container, IConfigurationStore store) 13: { 14: container.Register( 15: Component.For(typeof(ICacheProvider<>)) 16: .ImplementedBy(typeof(CacheProvider<>)) 17: .LifestyleTransient()); 18: } 19: } 20: }   Note that the cache provider is registered as a open generic type. Consuming a Repository I have an existing couple of repository interfaces defined in my domain layer: IRepository.cs 1: using System; 2: using System.Collections.Generic; 3:   4: using CacheDiSample.Domain.Model; 5:   6: namespace CacheDiSample.Domain.Repositories 7: { 8: public interface IRepository<T> 9: where T : EntityBase 10: { 11: T GetById(int id); 12: IList<T> GetAll(); 13: } 14: }   IBlogRepository.cs 1: using System; 2: using CacheDiSample.Domain.Model; 3:   4: namespace CacheDiSample.Domain.Repositories 5: { 6: public interface IBlogRepository : IRepository<Blog> 7: { 8: Blog GetByName(string name); 9: } 10: }   These two repositories are implemented in the DataAccess layer, using Entity Framework to retrieve data (this is not important though). One important point is that in the BaseRepository implementation of IRepository, the methods are virtual. This will allow the decorator to override them. The BlogRepository is registered in a RepositoriesInstaller, again in the MVC UI project. 1: using Castle.MicroKernel.Registration; 2: using Castle.MicroKernel.SubSystems.Configuration; 3: using Castle.Windsor; 4:   5: using CacheDiSample.Domain.CacheDecorators; 6: using CacheDiSample.Domain.Repositories; 7: using CacheDiSample.DataAccess; 8:   9: namespace CacheDiSample.WindsorInstallers 10: { 11: public class RepositoriesInstaller : IWindsorInstaller 12: { 13: public void Install(IWindsorContainer container, IConfigurationStore store) 14: { 15: container.Register(Component.For<IBlogRepository>() 16: .ImplementedBy<BlogRepository>() 17: .LifestyleTransient() 18: .DependsOn(new 19: { 20: nameOrConnectionString = "BloggingContext" 21: })); 22: } 23: } 24: }   Now I can inject a dependency on the IBlogRepository into a consumer, such as a controller in my sample code: 1: using System; 2: using System.Collections.Generic; 3: using System.Linq; 4: using System.Web; 5: using System.Web.Mvc; 6:   7: using CacheDiSample.Domain.Repositories; 8: using CacheDiSample.Domain.Model; 9:   10: namespace CacheDiSample.Controllers 11: { 12: public class HomeController : Controller 13: { 14: private readonly IBlogRepository blogRepository; 15:   16: public HomeController(IBlogRepository blogRepository) 17: { 18: if (blogRepository == null) 19: throw new ArgumentNullException("blogRepository"); 20:   21: this.blogRepository = blogRepository; 22: } 23:   24: public ActionResult Index() 25: { 26: ViewBag.Message = "Welcome to ASP.NET MVC!"; 27:   28: var blogs = blogRepository.GetAll(); 29:   30: return View(new Models.HomeModel { Blogs = blogs }); 31: } 32:   33: public ActionResult About() 34: { 35: return View(); 36: } 37: } 38: }   Consuming the Cache Provider via a Decorator I used a Decorator pattern to consume the cache provider, this means my repositories follow the open/closed principle, as they do not require any modifications to implement the caching. It also means that my controllers do not have any knowledge of the caching taking place, as the DI container will simply inject the decorator instead of the root implementation of the repository. The first step is to implement a BlogRepository decorator, with the caching logic in it. Note that this can reside in the domain layer, as it does not require any knowledge of the data access methods. BlogRepositoryWithCaching.cs 1: using System; 2: using System.Collections.Generic; 3: using System.Linq; 4: using System.Text; 5:   6: using CacheDiSample.Domain.Model; 7: using CacheDiSample.Domain; 8: using CacheDiSample.Domain.Repositories; 9:   10: namespace CacheDiSample.Domain.CacheDecorators 11: { 12: public class BlogRepositoryWithCaching : IBlogRepository 13: { 14: // The generic cache provider, injected by DI 15: private ICacheProvider<Blog> cacheProvider; 16: // The decorated blog repository, injected by DI 17: private IBlogRepository parentBlogRepository; 18:   19: public BlogRepositoryWithCaching(IBlogRepository parentBlogRepository, ICacheProvider<Blog> cacheProvider) 20: { 21: if (parentBlogRepository == null) 22: throw new ArgumentNullException("parentBlogRepository"); 23:   24: this.parentBlogRepository = parentBlogRepository; 25:   26: if (cacheProvider == null) 27: throw new ArgumentNullException("cacheProvider"); 28:   29: this.cacheProvider = cacheProvider; 30: } 31:   32: public Blog GetByName(string name) 33: { 34: string key = string.Format("CacheDiSample.DataAccess.GetByName.{0}", name); 35: // hard code 5 minute expiry! 36: TimeSpan relativeCacheExpiry = new TimeSpan(0, 5, 0); 37: return cacheProvider.Fetch(key, () => 38: { 39: return parentBlogRepository.GetByName(name); 40: }, 41: null, relativeCacheExpiry); 42: } 43:   44: public Blog GetById(int id) 45: { 46: string key = string.Format("CacheDiSample.DataAccess.GetById.{0}", id); 47:   48: // hard code 5 minute expiry! 49: TimeSpan relativeCacheExpiry = new TimeSpan(0, 5, 0); 50: return cacheProvider.Fetch(key, () => 51: { 52: return parentBlogRepository.GetById(id); 53: }, 54: null, relativeCacheExpiry); 55: } 56:   57: public IList<Blog> GetAll() 58: { 59: string key = string.Format("CacheDiSample.DataAccess.GetAll"); 60:   61: // hard code 5 minute expiry! 62: TimeSpan relativeCacheExpiry = new TimeSpan(0, 5, 0); 63: return cacheProvider.Fetch(key, () => 64: { 65: return parentBlogRepository.GetAll(); 66: }, 67: null, relativeCacheExpiry) 68: .ToList(); 69: } 70: } 71: }   The key things in this caching repository are: I inject into the repository the ICacheProvider<Blog> implementation, via the constructor. This will make the cache provider functionality available to the repository. I inject the parent IBlogRepository implementation (which has the actual data access code), via the constructor. This will allow the methods implemented in the parent to be called if nothing is found in the cache. I override each of the methods implemented in the repository, including those implemented in the generic BaseRepository. Each override of these methods follows the same pattern. It makes a call to the CacheProvider.Fetch method, and passes in the parentBlogRepository implementation of the method as the retrieval method, to be used if nothing is present in the cache. Configuring the Caching Repository in the DI Container The final piece of the jigsaw is to tell Castle Windsor to use the BlogRepositoryWithCaching implementation of IBlogRepository, but to inject the actual Data Access implementation into this decorator. This is easily achieved by modifying the RepositoriesInstaller to use Windsor’s implicit decorator wiring: 1: using Castle.MicroKernel.Registration; 2: using Castle.MicroKernel.SubSystems.Configuration; 3: using Castle.Windsor; 4:   5: using CacheDiSample.Domain.CacheDecorators; 6: using CacheDiSample.Domain.Repositories; 7: using CacheDiSample.DataAccess; 8:   9: namespace CacheDiSample.WindsorInstallers 10: { 11: public class RepositoriesInstaller : IWindsorInstaller 12: { 13: public void Install(IWindsorContainer container, IConfigurationStore store) 14: { 15:   16: // Use Castle Windsor implicit wiring for the block repository decorator 17: // Register the outermost decorator first 18: container.Register(Component.For<IBlogRepository>() 19: .ImplementedBy<BlogRepositoryWithCaching>() 20: .LifestyleTransient()); 21: // Next register the IBlogRepository inmplementation to inject into the outer decorator 22: container.Register(Component.For<IBlogRepository>() 23: .ImplementedBy<BlogRepository>() 24: .LifestyleTransient() 25: .DependsOn(new 26: { 27: nameOrConnectionString = "BloggingContext" 28: })); 29: } 30: } 31: }   This is all that is needed. Now if the consumer of the repository makes a call to the repositories method, it will be routed via the caching mechanism. You can test this by stepping through the code, and seeing that the DataAccess.BlogRepository code is only called if there is no data in the cache, or this has expired. The next step is to add the SQL Cache Dependency support into this pattern, this will be a future post.

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• "Win32 exception occurred releasing IUnknown at..." error using Pylons and WMI

  - by Anders

  Hi all, Im using Pylons in combination with WMI module to do some basic system monitoring of a couple of machines, for POSIX based systems everything is simple - for Windows - not so much. Doing a request to the Pylons server to get current CPU, however it's not working well, or atleast with the WMI module. First i simply did (something) this: c = wmi.WMI() for cpu in c.Win32_Processor(): value = cpu.LoadPercentage However, that gave me an error when accessing this module via Pylons (GET http://ip:port/cpu): raise x_wmi_uninitialised_thread ("WMI returned a syntax error: you're probably running inside a thread without first calling pythoncom.CoInitialize[Ex]") x_wmi_uninitialised_thread: <x_wmi: WMI returned a syntax error: you're probably running inside a thread without first calling pythoncom.CoInitialize[Ex] (no underlying exception)> Looking at http://timgolden.me.uk/python/wmi/tutorial.html, i wrapped the code accordingly to the example under the topic "CoInitialize & CoUninitialize", which makes the code work, but it keeps throwing "Win32 exception occurred releasing IUnknown at..." And then looking at http://mail.python.org/pipermail/python-win32/2007-August/006237.html and the follow up post, trying to follow that - however pythoncom._GetInterfaceCount() is always 20. Im guessing this is someway related to Pylons spawning worker threads and crap like that, however im kinda lost here, advice would be nice. Thanks in advance, Anders

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• django: error while migrating from 1.1 to 1.2

  - by gruszczy

  I am trying to migrate our django project from 1.1 to 1.2, but I get following error: Traceback (most recent call last): File "./manage.py", line 11, in <module> execute_manager(settings) File "/usr/local/lib/python2.6/dist-packages/django/core/management/__init__.py", line 438, in execute_manager utility.execute() File "/usr/local/lib/python2.6/dist-packages/django/core/management/__init__.py", line 379, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/usr/local/lib/python2.6/dist-packages/django/core/management/base.py", line 191, in run_from_argv self.execute(*args, **options.__dict__) File "/usr/local/lib/python2.6/dist-packages/django/core/management/base.py", line 209, in execute translation.activate('en-us') File "/usr/local/lib/python2.6/dist-packages/django/utils/translation/__init__.py", line 66, in activate return real_activate(language) File "/usr/local/lib/python2.6/dist-packages/django/utils/functional.py", line 55, in _curried return _curried_func(*(args+moreargs), **dict(kwargs, **morekwargs)) File "/usr/local/lib/python2.6/dist-packages/django/utils/translation/__init__.py", line 36, in delayed_loader return getattr(trans, real_name)(*args, **kwargs) File "/usr/local/lib/python2.6/dist-packages/django/utils/translation/trans_real.py", line 193, in activate _active[currentThread()] = translation(language) File "/usr/local/lib/python2.6/dist-packages/django/utils/translation/trans_real.py", line 176, in translation default_translation = _fetch(settings.LANGUAGE_CODE) File "/usr/local/lib/python2.6/dist-packages/django/utils/translation/trans_real.py", line 159, in _fetch app = import_module(appname) File "/usr/local/lib/python2.6/dist-packages/django/utils/importlib.py", line 35, in import_module __import__(name) File "/home/gruszczy/Programy/bozorth/../bozorth/notifications/__init__.py", line 2, in <module> from django.db.models.signals import post_save File "/usr/local/lib/python2.6/dist-packages/django/db/__init__.py", line 75, in <module> connection = connections[DEFAULT_DB_ALIAS] File "/usr/local/lib/python2.6/dist-packages/django/db/utils.py", line 92, in __getitem__ conn = backend.DatabaseWrapper(db, alias) File "/usr/local/lib/python2.6/dist-packages/django/db/backends/sqlite3/base.py", line 154, in __init__ super(DatabaseWrapper, self).__init__(*args, **kwargs) TypeError: __init__() takes exactly 2 arguments (3 given) Anyone encountered this problem and know, how to solve?

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• JBoss5: Cannot deploy due to java.util.zip.ZipException: error in opening zip file

  - by Andreas

  I have a web client and a EJB project, which I created with Eclipse 3.4. When I want to deploy it on Jboss 5.0.1, I receive the error below. I searched a lot but I wasn't able to find a solution to this. 18:21:21,899 INFO [ServerImpl] Starting JBoss (Microcontainer)... 18:21:21,900 INFO [ServerImpl] Release ID: JBoss [Morpheus] 5.0.1.GA (build: SVNTag=JBoss_5_0_1_GA date=200902231221) 18:21:21,900 INFO [ServerImpl] Bootstrap URL: null 18:21:21,900 INFO [ServerImpl] Home Dir: /Applications/jboss-5.0.1.GA 18:21:21,900 INFO [ServerImpl] Home URL: file:/Applications/jboss-5.0.1.GA/ 18:21:21,901 INFO [ServerImpl] Library URL: file:/Applications/jboss-5.0.1.GA/lib/ 18:21:21,901 INFO [ServerImpl] Patch URL: null 18:21:21,901 INFO [ServerImpl] Common Base URL: file:/Applications/jboss-5.0.1.GA/common/ 18:21:21,902 INFO [ServerImpl] Common Library URL: file:/Applications/jboss-5.0.1.GA/common/lib/ 18:21:21,902 INFO [ServerImpl] Server Name: default 18:21:21,902 INFO [ServerImpl] Server Base Dir: /Applications/jboss-5.0.1.GA/server 18:21:21,902 INFO [ServerImpl] Server Base URL: file:/Applications/jboss-5.0.1.GA/server/ 18:21:21,902 INFO [ServerImpl] Server Config URL: file:/Applications/jboss-5.0.1.GA/server/default/conf/ 18:21:21,902 INFO [ServerImpl] Server Home Dir: /Applications/jboss-5.0.1.GA/server/default 18:21:21,902 INFO [ServerImpl] Server Home URL: file:/Applications/jboss-5.0.1.GA/server/default/ 18:21:21,903 INFO [ServerImpl] Server Data Dir: /Applications/jboss-5.0.1.GA/server/default/data 18:21:21,903 INFO [ServerImpl] Server Library URL: file:/Applications/jboss-5.0.1.GA/server/default/lib/ 18:21:21,903 INFO [ServerImpl] Server Log Dir: /Applications/jboss-5.0.1.GA/server/default/log 18:21:21,903 INFO [ServerImpl] Server Native Dir: /Applications/jboss-5.0.1.GA/server/default/tmp/native 18:21:21,903 INFO [ServerImpl] Server Temp Dir: /Applications/jboss-5.0.1.GA/server/default/tmp 18:21:21,903 INFO [ServerImpl] Server Temp Deploy Dir: /Applications/jboss-5.0.1.GA/server/default/tmp/deploy 18:21:22,669 INFO [ServerImpl] Starting Microcontainer, bootstrapURL=file:/Applications/jboss-5.0.1.GA/server/default/conf/bootstrap.xml 18:21:23,535 INFO [VFSCacheFactory] Initializing VFSCache [org.jboss.virtual.plugins.cache.CombinedVFSCache] 18:21:23,541 INFO [VFSCacheFactory] Using VFSCache [CombinedVFSCache[real-cache: null]] 18:21:23,942 INFO [CopyMechanism] VFS temp dir: /Applications/jboss-5.0.1.GA/server/default/tmp 18:21:23,943 INFO [ZipEntryContext] VFS force nested jars copy-mode is enabled. 18:21:26,263 INFO [ServerInfo] Java version: 1.5.0_16,Apple Inc. 18:21:26,264 INFO [ServerInfo] Java Runtime: Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b06-284) 18:21:26,264 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.5.0_16-133,Apple Inc. 18:21:26,264 INFO [ServerInfo] OS-System: Mac OS X 10.5.6,i386 18:21:26,336 INFO [JMXKernel] Legacy JMX core initialized 18:21:30,432 INFO [ProfileServiceImpl] Loading profile: default from: org.jboss.system.server.profileservice.repository.SerializableDeploymentRepository@e1d5d9(root=/Applications/jboss-5.0.1.GA/server, key=org.jboss.profileservice.spi.ProfileKey@143b82c3[domain=default,server=default,name=default]) 18:21:30,436 INFO [ProfileImpl] Using repository:org.jboss.system.server.profileservice.repository.SerializableDeploymentRepository@e1d5d9(root=/Applications/jboss-5.0.1.GA/server, key=org.jboss.profileservice.spi.ProfileKey@143b82c3[domain=default,server=default,name=default]) 18:21:30,436 INFO [ProfileServiceImpl] Loaded profile: ProfileImpl@ae002e{key=org.jboss.profileservice.spi.ProfileKey@143b82c3[domain=default,server=default,name=default]} 18:21:32,935 INFO [WebService] Using RMI server codebase: http://localhost:8083/ 18:21:42,572 INFO [NativeServerConfig] JBoss Web Services - Stack Native Core 18:21:42,573 INFO [NativeServerConfig] 3.0.5.GA 18:21:52,836 ERROR [AbstractKernelController] Error installing to ClassLoader: name=vfsfile:/Applications/jboss-5.0.1.GA/server/default/deploy/TwitterEAR.ear/ state=Describe mode=Manual requiredState=ClassLoader org.jboss.deployers.spi.DeploymentException: Error creating classloader for vfsfile:/Applications/jboss-5.0.1.GA/server/default/deploy/TwitterEAR.ear/ at org.jboss.deployers.spi.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:49) at org.jboss.deployers.structure.spi.helpers.AbstractDeploymentContext.createClassLoader(AbstractDeploymentContext.java:576) at org.jboss.deployers.structure.spi.helpers.AbstractDeploymentUnit.createClassLoader(AbstractDeploymentUnit.java:159) at org.jboss.deployers.spi.deployer.helpers.AbstractClassLoaderDeployer.deploy(AbstractClassLoaderDeployer.java:53) at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:171) at org.jboss.deployers.plugins.deployers.DeployersImpl.doDeploy(DeployersImpl.java:1439) at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:1157) at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:1098) at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348) at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1598) at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:934) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:1062) at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:984) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:822) at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:553) at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:781) at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:698) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.loadProfile(ProfileServiceBootstrap.java:304) at org.jboss.system.server.profileservice.ProfileServiceBootstrap.start(ProfileServiceBootstrap.java:205) at org.jboss.bootstrap.AbstractServerImpl.start(AbstractServerImpl.java:405) at org.jboss.Main.boot(Main.java:209) at org.jboss.Main$1.run(Main.java:547) at java.lang.Thread.run(Thread.java:613) Caused by: java.lang.Error: Error visiting FileHandler@5567366[path=TwitterEAR.ear/TwitterPoCEJB.jar context=file:/Applications/jboss-5.0.1.GA/server/default/deploy/ real=file:/Applications/jboss-5.0.1.GA/server/default/deploy/TwitterEAR.ear/TwitterPoCEJB.jar/] at org.jboss.classloading.plugins.vfs.PackageVisitor.determineAllPackages(PackageVisitor.java:98) at org.jboss.deployers.vfs.plugins.classloader.VFSDeploymentClassLoaderPolicyModule.determineCapabilities(VFSDeploymentClassLoaderPolicyModule.java:108) at org.jboss.classloading.spi.dependency.Module.getCapabilities(Module.java:654) at org.jboss.classloading.spi.dependency.Module.determinePackageNames(Module.java:713) at org.jboss.classloading.spi.dependency.Module.getPackageNames(Module.java:698) at org.jboss.deployers.vfs.plugins.classloader.VFSDeploymentClassLoaderPolicyModule.determinePolicy(VFSDeploymentClassLoaderPolicyModule.java:129) at org.jboss.deployers.vfs.plugins.classloader.VFSDeploymentClassLoaderPolicyModule.determinePolicy(VFSDeploymentClassLoaderPolicyModule.java:48) at org.jboss.classloading.spi.dependency.policy.ClassLoaderPolicyModule.getPolicy(ClassLoaderPolicyModule.java:195) at org.jboss.deployers.vfs.plugins.classloader.VFSDeploymentClassLoaderPolicyModule.getPolicy(VFSDeploymentClassLoaderPolicyModule.java:122) at org.jboss.deployers.vfs.plugins.classloader.VFSDeploymentClassLoaderPolicyModule.getPolicy(VFSDeploymentClassLoaderPolicyModule.java:48) at org.jboss.classloading.spi.dependency.policy.ClassLoaderPolicyModule.registerClassLoaderPolicy(ClassLoaderPolicyModule.java:131) at org.jboss.deployers.plugins.classloading.AbstractLevelClassLoaderSystemDeployer.createClassLoader(AbstractLevelClassLoaderSystemDeployer.java:120) at org.jboss.deployers.structure.spi.helpers.AbstractDeploymentContext.createClassLoader(AbstractDeploymentContext.java:562) ... 21 more Caused by: java.lang.RuntimeException: java.util.zip.ZipException: error in opening zip file at org.jboss.virtual.plugins.context.AbstractExceptionHandler.handleZipEntriesInitException(AbstractExceptionHandler.java:39) at org.jboss.virtual.plugins.context.helpers.NamesExceptionHandler.handleZipEntriesInitException(NamesExceptionHandler.java:63) at org.jboss.virtual.plugins.context.zip.ZipEntryContext.ensureEntries(ZipEntryContext.java:610) at org.jboss.virtual.plugins.context.zip.ZipEntryContext.checkIfModified(ZipEntryContext.java:757) at org.jboss.virtual.plugins.context.zip.ZipEntryContext.getChildren(ZipEntryContext.java:829) at org.jboss.virtual.plugins.context.zip.ZipEntryHandler.getChildren(ZipEntryHandler.java:159) at org.jboss.virtual.plugins.context.DelegatingHandler.getChildren(DelegatingHandler.java:121) at org.jboss.virtual.plugins.context.AbstractVFSContext.getChildren(AbstractVFSContext.java:211) at org.jboss.virtual.plugins.context.AbstractVFSContext.visit(AbstractVFSContext.java:328) at org.jboss.virtual.plugins.context.AbstractVFSContext.visit(AbstractVFSContext.java:298) at org.jboss.virtual.VFS.visit(VFS.java:433) at org.jboss.virtual.VirtualFile.visit(VirtualFile.java:437) at org.jboss.virtual.VirtualFile.getChildren(VirtualFile.java:386) at org.jboss.virtual.VirtualFile.getChildren(VirtualFile.java:367) at org.jboss.classloading.plugins.vfs.PackageVisitor.visit(PackageVisitor.java:200) at org.jboss.virtual.plugins.vfs.helpers.WrappingVirtualFileHandlerVisitor.visit(WrappingVirtualFileHandlerVisitor.java:62) at org.jboss.virtual.plugins.context.AbstractVFSContext.visit(AbstractVFSContext.java:353) at org.jboss.virtual.plugins.context.AbstractVFSContext.visit(AbstractVFSContext.java:298) at org.jboss.virtual.VFS.visit(VFS.java:433) at org.jboss.virtual.VirtualFile.visit(VirtualFile.java:437) at org.jboss.classloading.plugins.vfs.PackageVisitor.determineAllPackages(PackageVisitor.java:94) ... 33 more Caused by: java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:203) at java.util.zip.ZipFile.<init>(ZipFile.java:234) at org.jboss.virtual.plugins.context.zip.ZipFileWrapper.ensureZipFile(ZipFileWrapper.java:175) at org.jboss.virtual.plugins.context.zip.ZipFileWrapper.acquire(ZipFileWrapper.java:245) at org.jboss.virtual.plugins.context.zip.ZipEntryContext.initEntries(ZipEntryContext.java:470) at org.jboss.virtual.plugins.context.zip.ZipEntryContext.ensureEntries(ZipEntryContext.java:603) ... 51 more 18:21:56,772 INFO [JMXConnectorServerService] JMX Connector server: service:jmx:rmi://localhost/jndi/rmi://localhost:1090/jmxconnector 18:21:56,959 INFO [MailService] Mail Service bound to java:/Mail 18:21:59,450 WARN [JBossASSecurityMetadataStore] WARNING! POTENTIAL SECURITY RISK. It has been detected that the MessageSucker component which sucks messages from one node to another has not had its password changed from the installation default. Please see the JBoss Messaging user guide for instructions on how to do this. 18:21:59,489 WARN [AnnotationCreator] No ClassLoader provided, using TCCL: org.jboss.managed.api.annotation.ManagementComponent 18:21:59,789 INFO [TransactionManagerService] JBossTS Transaction Service (JTA version) - JBoss Inc. 18:21:59,789 INFO [TransactionManagerService] Setting up property manager MBean and JMX layer 18:22:00,040 INFO [TransactionManagerService] Initializing recovery manager 18:22:00,160 INFO [TransactionManagerService] Recovery manager configured 18:22:00,160 INFO [TransactionManagerService] Binding TransactionManager JNDI Reference 18:22:00,184 INFO [TransactionManagerService] Starting transaction recovery manager 18:22:01,243 INFO [Http11Protocol] Initializing Coyote HTTP/1.1 on http-localhost%2F127.0.0.1-8080 18:22:01,244 INFO [AjpProtocol] Initializing Coyote AJP/1.3 on ajp-localhost%2F127.0.0.1-8009 18:22:01,244 INFO [StandardService] Starting service jboss.web 18:22:01,247 INFO [StandardEngine] Starting Servlet Engine: JBoss Web/2.1.2.GA 18:22:01,336 INFO [Catalina] Server startup in 161 ms 18:22:01,360 INFO [TomcatDeployment] deploy, ctxPath=/invoker 18:22:02,014 INFO [TomcatDeployment] deploy, ctxPath=/web-console 18:22:02,459 INFO [TomcatDeployment] deploy, ctxPath=/jbossws 18:22:02,570 INFO [RARDeployment] Required license terms exist, view vfszip:/Applications/jboss-5.0.1.GA/server/default/deploy/jboss-local-jdbc.rar/META-INF/ra.xml 18:22:02,586 INFO [RARDeployment] Required license terms exist, view vfszip:/Applications/jboss-5.0.1.GA/server/default/deploy/jboss-xa-jdbc.rar/META-INF/ra.xml 18:22:02,645 INFO [RARDeployment] Required license terms exist, view vfszip:/Applications/jboss-5.0.1.GA/server/default/deploy/jms-ra.rar/META-INF/ra.xml 18:22:02,663 INFO [RARDeployment] Required license terms exist, view vfszip:/Applications/jboss-5.0.1.GA/server/default/deploy/mail-ra.rar/META-INF/ra.xml 18:22:02,705 INFO [RARDeployment] Required license terms exist, view vfszip:/Applications/jboss-5.0.1.GA/server/default/deploy/quartz-ra.rar/META-INF/ra.xml 18:22:02,801 INFO [SimpleThreadPool] Job execution threads will use class loader of thread: main 18:22:02,850 INFO [QuartzScheduler] Quartz Scheduler v.1.5.2 created. 18:22:02,857 INFO [RAMJobStore] RAMJobStore initialized. 18:22:02,858 INFO [StdSchedulerFactory] Quartz scheduler 'DefaultQuartzScheduler' initialized from default resource file in Quartz package: 'quartz.properties' 18:22:02,858 INFO [StdSchedulerFactory] Quartz scheduler version: 1.5.2 18:22:02,859 INFO [QuartzScheduler] Scheduler DefaultQuartzScheduler_$_NON_CLUSTERED started. 18:22:03,888 INFO [ConnectionFactoryBindingService] Bound ConnectionManager 'jboss.jca:service=DataSourceBinding,name=DefaultDS' to JNDI name 'java:DefaultDS' 18:22:04,530 INFO [ServerPeer] JBoss Messaging 1.4.1.GA server [0] started 18:22:04,624 INFO [QueueService] Queue[/queue/DLQ] started, fullSize=200000, pageSize=2000, downCacheSize=2000 18:22:04,632 WARN [ConnectionFactoryJNDIMapper] supportsFailover attribute is true on connection factory: jboss.messaging.connectionfactory:service=ClusteredConnectionFactory but post office is non clustered. So connection factory will *not* support failover 18:22:04,632 WARN [ConnectionFactoryJNDIMapper] supportsLoadBalancing attribute is true on connection factory: jboss.messaging.connectionfactory:service=ClusteredConnectionFactory but post office is non clustered. So connection factory will *not* support load balancing 18:22:04,742 INFO [ConnectionFactory] Connector bisocket://localhost:4457 has leasing enabled, lease period 10000 milliseconds 18:22:04,742 INFO [ConnectionFactory] org.jboss.jms.server.connectionfactory.ConnectionFactory@6af9ad started 18:22:04,746 INFO [QueueService] Queue[/queue/ExpiryQueue] started, fullSize=200000, pageSize=2000, downCacheSize=2000 18:22:04,747 INFO [ConnectionFactory] Connector bisocket://localhost:4457 has leasing enabled, lease period 10000 milliseconds 18:22:04,747 INFO [ConnectionFactory] org.jboss.jms.server.connectionfactory.ConnectionFactory@5ac953 started 18:22:04,750 INFO [ConnectionFactory] Connector bisocket://localhost:4457 has leasing enabled, lease period 10000 milliseconds 18:22:04,750 INFO [ConnectionFactory] org.jboss.jms.server.connectionfactory.ConnectionFactory@e8fa3a started 18:22:05,050 INFO [ConnectionFactoryBindingService] Bound ConnectionManager 'jboss.jca:service=ConnectionFactoryBinding,name=JmsXA' to JNDI name 'java:JmsXA' 18:22:05,073 INFO [TomcatDeployment] deploy, ctxPath=/ 18:22:05,178 INFO [TomcatDeployment] deploy, ctxPath=/jmx-console 18:22:05,290 ERROR [ProfileServiceBootstrap] Failed to load profile: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS): DEPLOYMENTS IN ERROR: Deployment "vfsfile:/Applications/jboss-5.0.1.GA/server/default/deploy/TwitterEAR.ear/" is in error due to the following reason(s): java.util.zip.ZipException: error in opening zip file 18:22:05,301 INFO [Http11Protocol] Starting Coyote HTTP/1.1 on http-localhost%2F127.0.0.1-8080 18:22:05,364 INFO [AjpProtocol] Starting Coyote AJP/1.3 on ajp-localhost%2F127.0.0.1-8009 18:22:05,373 INFO [ServerImpl] JBoss (Microcontainer) [5.0.1.GA (build: SVNTag=JBoss_5_0_1_GA date=200902231221)] Started in 43s:467ms The mentioned ear and war file are both in the deploy directory. Does anybody have hints?

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• Add comment programmatically in Drupal 7

  - by volocuga

  trying to create a comment in own module. $comment = new stdClass(); $comment->nid = 555; // Node Id the comment will attached to $comment->cid = 0; $comment->pid = 0; $comment->uid = 1; $comment->mail = '[email protected]'; $comment->name = 'admin'; $comment->is_anonymous = 0; $comment->homepage = ''; $comment->status = COMMENT_PUBLISHED; $comment->language = LANGUAGE_NONE; $comment->subject = 'Comment subject'; $comment->comment_body[$comment->language][0]['value'] = 'Comment body text'; $comment->comment_body[$comment->language][0]['format'] = 'filtered_html'; comment_submit($comment); comment_save($comment); The code causes the following error: Fatal error: Call to undefined function node_load() in BLA/BLA/comment.module on line 1455 node_load() function is in node module which, of course, enabled. How to fix it? Thanks!

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• Returning a list from a function in Python

  - by Jasper

  Hi, I'm creating a game for my sister, and I want a function to return a list variable, so I can pass it to another variable. The relevant code is as follows: def startNewGame(): while 1: #Introduction: print print """Hello, You will now be guided through the setup process. There are 7 steps to this. You can cancel setup at any time by typing 'cancelSetup' Thankyou""" #Step 1 (Name): print print """Step 1 of 7: Type in a name for your PotatoHead: """ inputPHName = raw_input('|Enter Name:|') if inputPHName == 'cancelSetup': sys.exit() #Step 2 (Gender): print print """Step 2 of 7: Choose the gender of your PotatoHead: input either 'm' or 'f' """ inputPHGender = raw_input('|Enter Gender:|') if inputPHGender == 'cancelSetup': sys.exit() #Step 3 (Colour): print print """Step 3 of 7: Choose the colour your PotatoHead will be: Only Red, Blue, Green and Yellow are currently supported """ inputPHColour = raw_input('|Enter Colour:|') if inputPHColour == 'cancelSetup': sys.exit() #Step 4 (Favourite Thing): print print """Step 4 of 7: Type your PotatoHead's favourite thing: """ inputPHFavThing = raw_input('|Enter Favourite Thing:|') if inputPHFavThing == 'cancelSetup': sys.exit() # Step 5 (First Toy): print print """Step 5 of 7: Choose a first toy for your PotatoHead: """ inputPHFirstToy = raw_input('|Enter First Toy:|') if inputPHFirstToy == 'cancelSetup': sys.exit() #Step 6 (Check stats): while 1: print print """Step 6 of 7: Check the following details to make sure that they are correct: """ print print """Name:\t\t\t""" + inputPHName + """ Gender:\t\t\t""" + inputPHGender + """ Colour:\t\t\t""" + inputPHColour + """ Favourite Thing:\t""" + inputPHFavThing + """ First Toy:\t\t""" + inputPHFirstToy + """ """ print print "Enter 'y' or 'n'" inputMCheckStats = raw_input('|Is this information correct?|') if inputMCheckStats == 'cancelSetup': sys.exit() elif inputMCheckStats == 'y': break elif inputMCheckStats == 'n': print "Re-enter info: ..." print break else: "The value you entered was incorrect, please re-enter your choice" if inputMCheckStats == 'y': break #Step 7 (Define variables for the creation of the PotatoHead): MFCreatePH = [] print print """Step 7 of 7: Your PotatoHead will now be created... Creating variables... """ MFCreatePH = [inputPHName, inputPHGender, inputPHColour, inputPHFavThing, inputPHFirstToy] time.sleep(1) print "inputPHName" print time.sleep(1) print "inputPHFirstToy" print return MFCreatePH print "Your PotatoHead varibles have been successfully created!" Then it is passed to another function that was imported from another module from potatohead import * ... welcomeMessage() MCreatePH = startGame() myPotatoHead = PotatoHead(MCreatePH) the code for the PotatoHead object is in the potatohead.py module which was imported above, and is as follows: class PotatoHead: #Initialise the PotatoHead object: def __init__(self, data): self.data = data #Takes the data from the start new game function - see main.py #Defines the PotatoHead starting attributes: self.name = data[0] self.gender = data[1] self.colour = data[2] self.favouriteThing = data[3] self.firstToy = data[4] self.age = '0.0' self.education = [self.eduScience, self.eduEnglish, self.eduMaths] = '0.0', '0.0', '0.0' self.fitness = '0.0' self.happiness = '10.0' self.health = '10.0' self.hunger = '0.0' self.tiredness = 'Not in this version' self.toys = [] self.toys.append(self.firstToy) self.time = '0' #Sets data lists for saving, loading and general use: self.phData = (self.name, self.gender, self.colour, self.favouriteThing, self.firstToy) self.phAdvData = (self.name, self.gender, self.colour, self.favouriteThing, self.firstToy, self.age, self.education, self.fitness, self.happiness, self.health, self.hunger, self.tiredness, self.toys) However, when I run the program this error appears: Traceback (most recent call last): File "/Users/Jasper/Documents/Programming/Potato Head Game/Current/main.py", line 158, in <module> myPotatoHead = PotatoHead(MCreatePH) File "/Users/Jasper/Documents/Programming/Potato Head Game/Current/potatohead.py", line 15, in __init__ self.name = data[0] TypeError: 'NoneType' object is unsubscriptable What am i doing wrong? -----EDIT----- The program finishes as so: Step 7 of 7: Your PotatoHead will now be created... Creating variables... inputPHName inputPHFirstToy Then it goes to the Tracback -----EDIT2----- This is the EXACT code I'm running in its entirety: #+--------------------------------------+# #| main.py |# #| A main module for the Potato Head |# #| Game to pull the other modules |# #| together and control through user |# #| input |# #| Author: |# #| Date Created / Modified: |# #| 3/2/10 | 20/2/10 |# #+--------------------------------------+# Tested: No #Import the required modules: import time import random import sys from potatohead import * from toy import * #Start the Game: def welcomeMessage(): print "----- START NEW GAME -----------------------" print "==Print Welcome Message==" print "loading... \t loading... \t loading..." time.sleep(1) print "loading..." time.sleep(1) print "LOADED..." print; print; print; print """Hello, Welcome to the Potato Head Game. In this game you can create a Potato Head, and look after it, like a Virtual Pet. This game is constantly being updated and expanded. Please look out for updates. """ #Choose whether to start a new game or load a previously saved game: def startGame(): while 1: print "--------------------" print """ Choose an option: New_Game or Load_Game """ startGameInput = raw_input('>>> >') if startGameInput == 'New_Game': startNewGame() break elif startGameInput == 'Load_Game': print "This function is not yet supported" print "Try Again" print else: print "You must have mistyped the command: Type either 'New_Game' or 'Load_Game'" print #Set the new game up: def startNewGame(): while 1: #Introduction: print print """Hello, You will now be guided through the setup process. There are 7 steps to this. You can cancel setup at any time by typing 'cancelSetup' Thankyou""" #Step 1 (Name): print print """Step 1 of 7: Type in a name for your PotatoHead: """ inputPHName = raw_input('|Enter Name:|') if inputPHName == 'cancelSetup': sys.exit() #Step 2 (Gender): print print """Step 2 of 7: Choose the gender of your PotatoHead: input either 'm' or 'f' """ inputPHGender = raw_input('|Enter Gender:|') if inputPHGender == 'cancelSetup': sys.exit() #Step 3 (Colour): print print """Step 3 of 7: Choose the colour your PotatoHead will be: Only Red, Blue, Green and Yellow are currently supported """ inputPHColour = raw_input('|Enter Colour:|') if inputPHColour == 'cancelSetup': sys.exit() #Step 4 (Favourite Thing): print print """Step 4 of 7: Type your PotatoHead's favourite thing: """ inputPHFavThing = raw_input('|Enter Favourite Thing:|') if inputPHFavThing == 'cancelSetup': sys.exit() # Step 5 (First Toy): print print """Step 5 of 7: Choose a first toy for your PotatoHead: """ inputPHFirstToy = raw_input('|Enter First Toy:|') if inputPHFirstToy == 'cancelSetup': sys.exit() #Step 6 (Check stats): while 1: print print """Step 6 of 7: Check the following details to make sure that they are correct: """ print print """Name:\t\t\t""" + inputPHName + """ Gender:\t\t\t""" + inputPHGender + """ Colour:\t\t\t""" + inputPHColour + """ Favourite Thing:\t""" + inputPHFavThing + """ First Toy:\t\t""" + inputPHFirstToy + """ """ print print "Enter 'y' or 'n'" inputMCheckStats = raw_input('|Is this information correct?|') if inputMCheckStats == 'cancelSetup': sys.exit() elif inputMCheckStats == 'y': break elif inputMCheckStats == 'n': print "Re-enter info: ..." print break else: "The value you entered was incorrect, please re-enter your choice" if inputMCheckStats == 'y': break #Step 7 (Define variables for the creation of the PotatoHead): MFCreatePH = [] print print """Step 7 of 7: Your PotatoHead will now be created... Creating variables... """ MFCreatePH = [inputPHName, inputPHGender, inputPHColour, inputPHFavThing, inputPHFirstToy] time.sleep(1) print "inputPHName" print time.sleep(1) print "inputPHFirstToy" print return MFCreatePH print "Your PotatoHead varibles have been successfully created!" #Run Program: welcomeMessage() MCreatePH = startGame() myPotatoHead = PotatoHead(MCreatePH) The potatohead.py module is as follows: #+--------------------------------------+# #| potatohead.py |# #| A module for the Potato Head Game |# #| Author: |# #| Date Created / Modified: |# #| 24/1/10 | 24/1/10 |# #+--------------------------------------+# Tested: Yes (24/1/10) #Create the PotatoHead class: class PotatoHead: #Initialise the PotatoHead object: def __init__(self, data): self.data = data #Takes the data from the start new game function - see main.py #Defines the PotatoHead starting attributes: self.name = data[0] self.gender = data[1] self.colour = data[2] self.favouriteThing = data[3] self.firstToy = data[4] self.age = '0.0' self.education = [self.eduScience, self.eduEnglish, self.eduMaths] = '0.0', '0.0', '0.0' self.fitness = '0.0' self.happiness = '10.0' self.health = '10.0' self.hunger = '0.0' self.tiredness = 'Not in this version' self.toys = [] self.toys.append(self.firstToy) self.time = '0' #Sets data lists for saving, loading and general use: self.phData = (self.name, self.gender, self.colour, self.favouriteThing, self.firstToy) self.phAdvData = (self.name, self.gender, self.colour, self.favouriteThing, self.firstToy, self.age, self.education, self.fitness, self.happiness, self.health, self.hunger, self.tiredness, self.toys) #Define the phStats variable, enabling easy display of PotatoHead attributes: def phDefStats(self): self.phStats = """Your Potato Head's Stats are as follows: ---------------------------------------- Name: \t\t""" + self.name + """ Gender: \t\t""" + self.gender + """ Colour: \t\t""" + self.colour + """ Favourite Thing: \t""" + self.favouriteThing + """ First Toy: \t""" + self.firstToy + """ Age: \t\t""" + self.age + """ Education: \t""" + str(float(self.eduScience) + float(self.eduEnglish) + float(self.eduMaths)) + """ -> Science: \t""" + self.eduScience + """ -> English: \t""" + self.eduEnglish + """ -> Maths: \t""" + self.eduMaths + """ Fitness: \t""" + self.fitness + """ Happiness: \t""" + self.happiness + """ Health: \t""" + self.health + """ Hunger: \t""" + self.hunger + """ Tiredness: \t""" + self.tiredness + """ Toys: \t\t""" + str(self.toys) + """ Time: \t\t""" + self.time + """ """ #Change the PotatoHead's favourite thing: def phChangeFavouriteThing(self, newFavouriteThing): self.favouriteThing = newFavouriteThing phChangeFavouriteThingMsg = "Your Potato Head's favourite thing is " + self.favouriteThing + "." #"Feed" the Potato Head i.e. Reduce the 'self.hunger' attribute's value: def phFeed(self): if float(self.hunger) >=3.0: self.hunger = str(float(self.hunger) - 3.0) elif float(self.hunger) < 3.0: self.hunger = '0.0' self.time = str(int(self.time) + 1) #Pass time #"Exercise" the Potato Head if between the ages of 5 and 25: def phExercise(self): if float(self.age) < 5.1 or float(self.age) > 25.1: print "This Potato Head is either too young or too old for this activity!" else: if float(self.fitness) <= 8.0: self.fitness = str(float(self.fitness) + 2.0) elif float(self.fitness) > 8.0: self.fitness = '10.0' self.time = str(int(self.time) + 1) #Pass time #"Teach" the Potato Head: def phTeach(self, subject): if subject == 'Science': if float(self.eduScience) <= 9.0: self.eduScience = str(float(self.eduScience) + 1.0) elif float(self.eduScience) > 9.0 and float(self.eduScience) < 10.0: self.eduScience = '10.0' elif float(self.eduScience) == 10.0: print "Your Potato Head has gained the highest level of qualifications in this subject! It cannot learn any more!" elif subject == 'English': if float(self.eduEnglish) <= 9.0: self.eduEnglish = str(float(self.eduEnglish) + 1.0) elif float(self.eduEnglish) > 9.0 and float(self.eduEnglish) < 10.0: self.eduEnglish = '10.0' elif float(self.eduEnglish) == 10.0: print "Your Potato Head has gained the highest level of qualifications in this subject! It cannot learn any more!" elif subject == 'Maths': if float(self.eduMaths) <= 9.0: self.eduMaths = str(float(self.eduMaths) + 1.0) elif float(self.eduMaths) > 9.0 and float(self.eduMaths) < 10.0: self.eduMaths = '10.0' elif float(self.eduMaths) == 10.0: print "Your Potato Head has gained the highest level of qualifications in this subject! It cannot learn any more!" else: print "That subject is not an option..." print "Please choose either Science, English or Maths" self.time = str(int(self.time) + 1) #Pass time #Increase Health: def phGoToDoctor(self): self.health = '10.0' self.time = str(int(self.time) + 1) #Pass time #Sleep: Age, change stats: #(Time Passes) def phSleep(self): self.time = '0' #Resets time for next 'day' (can do more things next day) #Increase hunger: if float(self.hunger) <= 5.0: self.hunger = str(float(self.hunger) + 5.0) elif float(self.hunger) > 5.0: self.hunger = '10.0' #Lower Fitness: if float(self.fitness) >= 0.5: self.fitness = str(float(self.fitness) - 0.5) elif float(self.fitness) < 0.5: self.fitness = '0.0' #Lower Health: if float(self.health) >= 0.5: self.health = str(float(self.health) - 0.5) elif float(self.health) < 0.5: self.health = '0.0' #Lower Happiness: if float(self.happiness) >= 2.0: self.happiness = str(float(self.happiness) - 2.0) elif float(self.happiness) < 2.0: self.happiness = '0.0' #Increase the Potato Head's age: self.age = str(float(self.age) + 0.1) The game is still under development - There may be parts of modules that aren't complete, but I don't think they're causing the problem

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