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• how to insert data field in a table is empty

  - by banita

  Hi iam making an application in vb as front end and backend as oracle . I want autogenerated id on click of new button.it works well if data is present in table but show error if the table is empty . What i need to insert so that it work when iam first time using the appliction . my button code is as Private Sub cmd_new_Click() Call txt_clear txt_name.Enabled = True Set rsCat = New ADODB.Recordset rsCat.Open "Category", conn, adOpenDynamic, adLockPessimistic If rsCat.EOF = rscat.BOF Then tempId = 1000 Else rsCat.MoveLast tempId = rsCat.Fields("Category_Id") + 1 End If txt_Id = tempId cmd_Save.Enabled = True cmd_new = False End Sub

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• WCF via Windows Service - Authinticating Clients

  - by Sean

  I am a WCF / Security Newb. I have created a WCF service which is hosted via a windows service. The WCF service grabs data from a 3rd party data source that is secured via windows authentication. I need to either: Pass the client's priveleges through the windows service, through the WCF service and into the 3rd party data source, or... Limit who can call the windows service / wcf service to members of a particular AD group. Any suggestions on how I can do either of these tasks?

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• Powershell 2.0 Hang When Run From MsDeploy pre- post- ops using c/

  - by SonOfNun

  I am trying to invoke powershell during the preSync call in a MSDeploy command, but powershell does not exit the process after it has been called. The command (from command line): "tools/MSDeploy/msdeploy.exe" -verb:sync -preSync:runCommand="powershell.exe -NoLogo -NoProfile -NonInteractive -ExecutionPolicy Unrestricted -Command C:/MyInstallPath/deploy.ps1 Set-WebAppOffline Uninstall-Service ",waitInterval=60000 -usechecksum -source:dirPath="build/for-deployment" -dest:wmsvc=BLUEPRINT-X86,username=deployer,password=deployer,dirPath=C:/MyInstallPath I used a hack here (http://therightstuff.de/2010/02/06/How-We-Practice-Continuous-Integration-And-Deployment-With-MSDeploy.aspx) that gets the powershell process and kills it but that didn't work. I also tried taskkill and the sysinternals equivalent, but nothing will kill the process so that MSDeploy errors out. The command is executed, but then just sits there. Any ideas what might be causing powershell to hang like this? I have found a few other similar issues around the web but no answers.

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• jQuery ajax() function is ignoring dataType parameter in Firefox

  - by ccleve

  I'm trying to use jQuery.ajax() to fetch some html, but Firefox is giving me a "junk after document element" error message. As explained here and here the problem seems to be that Firefox is expecting XML from the server, and when it doesn't parse correctly it throws the error. Here's my ajax code: jQuery.ajax({ url: name, dataType: "html", success: function(result) { console.log(result); }, error: function (jqXHR, textStatus, errorThrown) { console.log(errorThrown); } }); The server returns the html with these response headers: Accept-Ranges bytes Content-Length 2957 Last-Modified Tue, 02 Jul 2013 16:16:59 GMT Note that there's no content-type header. I'm sure that adding one would solve the problem, but that's not an option. The real problem is that Firefox appears to be ignoring the dataType: parameter in the ajax call. I've also tried adding contentType: and accepts: parameters, but it doesn't help. What am I missing here? How do I force Firefox to process the response as plain text?

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• Error 2006: "MySQL server has gone away" using Python, Bottle Microframework and Apache

  - by Jamie

  After accessing my web app using: - Python 2.7 - the Bottle micro framework v. 0.10.6 - Apache 2.2.22 - mod_wsgi - on Ubuntu Server 12.04 64bit; I'm receiving this error after several hours: OperationalError: (2006, 'MySQL server has gone away') I'm using MySQL - the native one included in Python. It usually happens when I don't access the server. I've tried closing all the connections, which I do, using this: cursor.close() db.close() where db is the standard MySQLdb.Connection() call. The my.cnf file looks something like this: key_buffer = 16M max_allowed_packet = 128M thread_stack = 192K thread_cache_size = 8 # This replaces the startup script and checks MyISAM tables if needed # the first time they are touched myisam-recover = BACKUP #max_connections = 100 #table_cache = 64 #thread_concurrency = 10 It is the default configuration file except max_allowed_packet is 128M instead of 16M. The queries to the database are quite simple, at most they retrieve approximately 100 records. Can anyone help me fix this? One idea I did have was use try/except but I'm not sure if that would actually work. Thanks in advance, Jamie

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• Debugging dynamic sql + dynamic tables in MS SQL Server 2008.

  - by Hamish Grubijan

  Hi, I have a messy stored procedure which uses dynamic sql. I can debug it in runtime by adding print @sql; where @sql; is the string containing the dynamic SQL, right before I call execute (@sql);. Now, the multi-page stored procedure also creates dynamic tables and uses them in a query. I want to print those tables to the console right before I do an execute, so that I know exactly what the query is trying to do. However, the SQL Server 08 does not like that. When I try: print #temp_table; and try to compile the S.P. I get this error: The name "#temp_table" is not permitted in this context. Valid expressions are constants, constant expressions, and (in some contexts) variables. Column names are not permitted. Please help.

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• Inclusion Handling in MVC 2 / MVCContrib

  - by mnemosyn

  I'd like to improve my page by combining and minifying javascript and CSS files. Since MVCContrib already contains a project called IncludeHandling, I took a look at that which unfortunately left me with unanswered questions: There is quite a set of interfaces and objects involved in the process. Now I'm using Ninject.Mvc, but it seems that MvcContrib.IncludeHandling is using some additional (home-brewed?) DI? Can I work around this? Has anybody used this and can share some experiences? Secondly, advice that is often heard is to put static content on different domains so the request does not contain cookies and the like, making it much easier for the server to handle the request. But how can I combine this with automatic inclusion handling - isn't that necessarily served in the same application? EDIT: Figured that there is really just a single resolve call in the whole thing, i really wonder why they use DI for that... Thinking about a fork there...

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• Avoiding the Controller with Routing Rules in ASP.NET MVC

  - by Ryan Elkins

  I've created a website with ASP.NET MVC. I have a number of static pages that I am currently serving through a single controller called Home. This creates some rather ugly URLs. example.com/Home/About example.com/Home/ContactUs example.com/Home/Features You get the idea. I'd rather not have to create a controller for each one of these as the actions simply call the View with no model being passed in. Is there a way to write a routing rule that will remove the controller from the URL? I'd like it to look like: example.com/About example.com/ContactUs example.com/Features If not, how is this situation normally handled? I imagine I'm not the first person to run in to this.

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• Problem creating site using Microsoft Visual Web Developer Express 2008

  - by Peter

  Hi, this is a very newbie question, sorry! I need to create an aspx website based con C# and am calling some webservices based on some DLL's I already have. Beforem purchasing Visual Studio, I decided to try Microsoft Visual Web Developer Express (is this ok?) creating a Web Application ASP.NET based on Visual C#. I created the form to enter the data which is submitted when clicking the process button. At this point I need to call stuff from the DLL, which I have added in the Solution Explorer via Add Reference, selecting the DLL from the COM list. But whenever I run the project, I always get the error "the type or namespace xxx cannot be found - maybe a using directive or assembler directive is missing" when trying to create the object. What is my stupid mistake? Thanks!

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• Rails: periodically use HEAD to check for page changes

  - by Chris

  I have a Rails app implementing a game, so it's expected that a player will leave a browser open at the game page. When player Alan takes an action himself, I use AJAX requests to update the game page Alan is viewing to reflect the new state. However, when another player (Bob) takes an action, I don't have (or want) a mechanism to push the change to Alan's view. I would like Alan's page to periodically poll the Rails server to find if there have been any changes since last reload, and to reload the page (either via a whole-page GET or an AJAX call) if not. In order to play nicely with caches and proxies, I'd like to do this by issuing a periodic HTTP HEAD request, get Rails to work out the timestamp of the last change (trivially available from my DB) and respond with that in the Last-Modified header; then have the client-side act on that timestamp. How can I go about doing this?

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• A function's static and dynamic parent

  - by legends2k

  I'm reading Thinking in C++ (vol. 2): Whenever a function is called, information about that function is pushed onto the runtime stack in an activation record instance (ARI), also called a stack frame. A typical stack frame contains (1) the address of the calling function (so execution can return to it), (2) a pointer to the ARI of the function’s static parent (the scope that lexically contains the called function, so variables global to the function can be accessed), and (3) a pointer to the function that called it (its dynamic parent). The path that logically results from repetitively following the dynamic parent links is the dynamic chain, or call chain I'm unable to comprehend what the author means as function's static and dynamic parent. Also am not able to differentiate between item 1, 2 or 3. They all seem to be the same. Can someone please explain this passage to me?

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• Cross domain cookie reading/setting cross browsers

  - by Rac123

  I know there are already a few threads available here on this subject but I want others' opinion on this. There are two ways to set/read the cross domain cookies: Creating IFrame on A.com pointing to a page on B.com which creates the cookie and pass that information by creating another IFrame on B.com side pointing to A.com, either using window.name or in location.href.hash A.com page makes a XHR/JSONP call to B.com web service/page that has the following headers and it also sets up the cookie and returns the value. AddHeader("p3p", "CP=\"IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT\"") As we don't have postMessage available across all the browsers, I believe we have to go with one of the cases mentioned above. My question is which is a better way (cleaner) and why to implement for cross browser. Using any other JS framework is out of scope of this discussion. If there's another better way, please mention here! Thank you for your intelligent input in advance! :)

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• TcpListener.Start() does not open the port

  - by SoMoS

  Hello, I have a class that inherits from the TcpListener, this class Shadows the Start method just to call the base Start() and the base BeginAcceptTcpClient(). From time to time the method is called but the port is not opened (netstat does not show the port open). The class looks like this Public Class ExtendedTcpListener Inherits System.Net.Sockets.TcpListener Public Shadows Sub Start() SyncLock (m_stopLock) MyBase.Start() MyBase.BeginAcceptTcpClient(AddressOf Me.CompleteAcceptTcpClient, Me) My.Application.Log.WriteEntry("Extended Tcp Listener started ...", TraceEventType.Verbose) End SyncLock End Sub Any idea on what's happening or how to debug the issue? As the Start() is called without exception I expected to find the port always opened (the log is always written). Extra information: when the Start method works fine it works each time until app is restarted. When the Start method does not work it won't work again until the app is restarted.

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• MFC SDI Application without a default "New Document" on Startup

  - by Jd

  My application is an SDI with multiple views. By default, it creates a new document when the application starts. I want to modify this behavior so that a new document is created only when user explicitly clicks on "New". Or at least mimic this behavior. Any ideas? I am using Visual Studio 2008 with MFC feature pack. I googled and found some solution to this problem in an old MS Journal article. But unfortunately it doesn't seem to work now. Any workarounds or solutions? In short, I need to differentiate between framework call to OnFileNew() and User Click on New.

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• One template specialization for multiple classes

  - by peper0

  Let's assume we have a template function "foo": template<class T> void foo(T arg) { ... } I can make specialization for some particular type, e.g. template<> void foo(int arg) { ... } If I wanted to use the same specialization for all builtin numeric types (int, float, double etc.) I would write those lines many times. I know that body can be thrown out to another function and just call of this is to be made in every specialization's body, however it would be nicer if i could avoid writting this "void foo(..." for every type. Is there any possibility to tell the compiler that I want to use this specialization for all this types?

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• Java Interface Usage Guidelines -- Are getters and setters in an interface bad?

  - by user68759

  What do people think of the best guidelines to use in an interface? What should and shouldn't go into an interface? I've heard people say that, as a general rule, an interface must only define behavior and not state. Does this mean that an interface shouldn't contain getters and setters? My opinion: Maybe not so for setters, but sometimes I think that getters are valid to be placed in an interface. This is merely to enforce the implementation classes to implement those getters and so to indicate that the clients are able to call those getters to check on something, for example.

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• iPad modal form sheet takes up the whole screen anyways

  - by quixoto

  I'm trying to create a form sheet modal on iPad, which should be a 540x620 modal view. I've created a view controller with a NIB file whose view is a 540x620 sized UIView (with stuff on it). I set the modal presentation style to UIModalPresentationFormSheet, and call presentModalViewController:animated: on the current view controller. My view slides in from the bottom, but instead of being a form sheet, it takes up the whole screen (my view elements are all anchored in the top left of the screen). Even stranger, when I dismiss it, all the UI that was "underneath" it, is all re-layed out to be in the center, in approximately a form sheet sized area in the center of the screen. Bizarro! Anyone have any suggestions as to what could cause this behavior? Thanks.

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• Android app (with felix) crashes with LinearAlloc exceeded capacity

  - by user1106000

  I am running apache felix and an osgi app on android (3.2). This works pretty well so far, but I have rather large chunks of data to load into the application (osgi bundles). The problem with that is that when I load the biggest chunk of data I get LinearAlloc exceeded capacity The error seems to come from LinearAlloc.c \#define DEFAULT_MAX_LENGTH (4*1024*1024) if (nextOffset > pHdr->mapLength) { /* * We don't have to abort here. We could fall back on the system * malloc(), and have our "free" call figure out what to do. Only * works if the users of these functions actually free everything * they allocate. */ LOGE("LinearAlloc exceeded capacity, last=%d\n", (int) size); dvmAbort(); } afaik in 3.2/4.x it is even 8*1024*1024, but I still hit that limit. I'm looking to get better insight on what causes this problem and how I might possibly be able to fix it. Any help would be appreciated.

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• GC.AddMemoryPressure

  - by Steve Sheldon

  I am writing an application in C# that makes use of a 3rd party COM DLL, this dll creates a lot of resources (like bitmaps, video, data structures) in unmanaged memory. While digging around I came across the following call for the Garbage Collector: GC.AddMemoryPressure(long long bytesAllocated) It is documented in MSDN here: http://msdn.microsoft.com/en-us/library/system.gc.addmemorypressure.aspx This sounds like something I should be calling since this external dll is createing a lot of resources the CLR is unaware of. I guess I have two questions... How do I know how much memory pressure to add when the dll is 3rd party and it's not possible for me to know exactly how much memory this dll is allocating. How important is it to do this?

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• How to read formatted input in python?

  - by eSKay

  I want to read from stdin five numbers entered as follows: 3, 4, 5, 1, 8 into seperate variables a,b,c,d & e. How do I do this in python? I tried this: import string a=input() b=a.split(', ') for two integers, but it does not work. I get: Traceback (most recent call last): File "C:\Users\Desktop\comb.py", line 3, in <module> b=a.split(', ') AttributeError: 'tuple' object has no attribute 'split' How to do this? and suppose I have not a fixed but a variable number n integers. Then?

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• How do I test SendInput in c#

  - by JoelHess

  How can I tell if my call to SendInput is working properly? I have a small snippet below, and the message never seems to get hit. SendInput() returns 1, and there's no errors, so I assume that the message is going out properly. I've also tried the Form KeyPress and KeyDown Events, and I never seem to get those either. private void button1_Click(object sender, EventArgs e) { INPUT input = new INPUT(); input.mkhi.ki.wVk = (byte)System.Windows.Forms.Keys.B; uint result = SendInput(1, ref input, Marshal.SizeOf(new INPUT())); } protected override void WndProc(ref Message m) { if (m.Msg == WM_KEYDOWN) { Console.WriteLine("GotIt"); } base.WndProc(ref m); }

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• ASP.Net MVC2 Client and Server Validation sharing the same code - is it possible?

  - by RemotecUk

  With the excellent XVal by Steve Sanderson, it is possible to tell the client side validation to post the value being validated to the server using jquery. A method on the server then uses the same server side code you use for your server side validation, and returns simply a true or false to determine if the field is valid. The advantage of this method is that you write your complex validation logic once in C# code and then put some JQuery plumbing in to tell your client page where to go to access your server validation. I have been reading some blogs on MVC2 but no one seems to mention this functionality. Is it possible to tell the Microsoft MVC validation javascript to call a url validate data? Or do you have to write your own client side validation routines. I should note that using the xVal method a custom validation to say if an email address is in use or not can be run from the client via a JQuery post which accesses the server side validation logic.

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• How to get descriptive error messages from DB2?

  - by tangens

  When I call a SQL statement via JDBC on the DB2 and the statement fails, I catch an SQLException with the following message text: com.ibm.db2.jcc.a.nn: DB2 SQL Error: SQLCODE=-206, SQLSTATE=42703, SQLERRMC=O.METADATENSATZ, DRIVER=3.52.95 I tried an automatic translation of the message according to the error list published by IBM, but there are placeholders inside the messages referencing other elements of the exception. While looking for these elements inside the exception, I found the DB2ExceptionFormatter and tried to use it to access the missing elements. But here I stopped, because the DB2ExceptionFormatter gave me a clue: Error occurred while trying to obtain message text from server. Only message tokens are available. So my question is: What do I have to configure to get the correct messages from the DB2 server? If I can get a human readable message from the server, I could use it directly and wouldn't have to translate it by myself.

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• How to find the right balance between "quick & dirty" and "nice & general" code?

  - by Frank

  This is not a direct programming question, but a little help from the programming community would be appreciated. I am suffering from an overgeneralization disease. I can't stop spending valuable time with making my code most general and abstract. I could also call it the toolkit/library disease. I tend to turn every programming task into a general problem and try to "write a toolkit", that would work for many similar problems. I know it's a good thing in general, if there is enough time, but sometimes I should be writing a quick prototype and just can't seem to write the quick and dirty code that just works for the special case. I often get excited about an idea that makes the code more general and user-configurable and understimate the time it takes to actually implement it that way. Does anyone else have this experience? How can I force myself to find the right balance between "quick hack" and "nice solution"?

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• CodePlex Daily Summary for Wednesday, May 19, 2010

  CodePlex Daily Summary for Wednesday, May 19, 2010New Projects3FD - Framework For Fast Development: This is a C++ framework that provides a solid error handling structure, garbage collection, multi-threading and portability between compilers. The ...ali test project: test projectAttribute Builder: The Attribute Builder builds an attribute from a lambda expression because it can.BDK0008: it is a food lovers websitecgdigest: cg digest template for non-profit orgCokmez: Bilmuh cokmez duyuru sistemiDot Game: It is a dot game that our Bangladeshi people used to play at their childhood time and their last time when they are poor for working.ESRI Javascript .NET Integration: Visual Studio project that shows how to integrate the Esri Javascript API with .NET Exchange 2010 RBAC Editor (RBAC GUI): Exchange 2010 RBAC Editor (RBAC GUI) Developed in C# and using Powershell behind the scenes RBAC tool to simplfy RBAC administrationFile Validator (Validador de Archivos): Componente que permite realizar la validación de archivos (txt, imagenes, PDF, etc) actualmente solo tiene implementado la parte de los txt, permit...Grip 09 Lab4: GripjPageFlipper: This is a wonderful implementation of page flipper entirely based on HTML 5 <canvas> tag. It means that it can work in any browser that supports HT...Main project: Index bird families and associated species. Malware Analysis and Can Handler: MACH is a tool to organize and catalog your malware analysis canned responses, and to track the topic response lifecycle for forum experts.Perf Web: Performance team web sitePiPiBugNet: PiPiBugNet是一套全新的开源Bug管理系统。 PiPiBugNet代码基于ASP.NET 2.0平台开发，编程语言为C#。 PiPiBugNet界面基于Ext JS设计，提供了极佳的用户体验。RemoteDesktop: integrated remote console, desktop and chat utilityRuneScape emulation done right.: RuneScape emulator.Sandkasten: SandkastenSilverlight Metro Theme: Metro Theme for Silverlight.Silverlight Stereoscopy: Stereoscopy with Silverlight.Twitivia: Twitivia is an online trivia service that runs through twitter and is being used as an example set of projects. C#, MVC, Windows Services, Linq ...XPool: A simple school project.New ReleasesDot Game: 'Dot Game' first release: Dot Game first release This is the 'Dot Game' first release.DotNetNuke® Store: 02.01.35: What's New in this release? Bugs corrected: - Fixed a resource for the header in the Category list of the Store Admin module. - Added several test...ESRI Javascript .NET Integration: Map search results in a DataView: Visual Studio 2010 example showing how to pass Map results back to ASP.NET for use in a DataView.Exchange 2010 RBAC Editor (RBAC GUI): RBAC Editor: This binary is still beta (0.0.9.1) but in most case it's very stableExtending C# editor - Outlining, classification: first revision: a couple of bug has been eliminated, performance improvementFloe IRC Client: Floe IRC Client 2010-05 R6: Corrected bug where text would be unexpectedly copied to the clipboard.Floe IRC Client: Floe IRC Client 2010-05 R7: - Fixed bug where text would show up in a query window with someone if they said something on a channel that you are both present on.Free Silverlight & WPF Chart Control - Visifire: Visifire SL and WPF Charts v3.0.9 GA released: Hi, Today we have released the final version of Visifire v3.0.9 which contains the following enhancements: * Two new properties ActualAxisMin...Free Silverlight & WPF Chart Control - Visifire: Visifire SL and WPF Charts v3.5.2 GA Released: Hi, Today we have released the final version of Visifire v3.5.2 which contains the following enhancements: Two new properties ActualAxisMinimum a...HB Batch Encoder Mk 2: HB Batch Encoder Mk2 v1.02: Added .mov support.jPageFlipper: jPageFlipper 0.9: This is an initial community preview of jPageFlipper. It's not ready for production usage but has almost all functionality implemented.linq.js - LINQ for JavaScript: ver 2.1.0.0: Add Class Dictionary Lookup Grouping OrderedEnumerable Add Method ToDictionary MemoizeAll Share Let Add Overload ...Microsoft Research Biology Extension for Excel: MSR Biology Extension for Excel - M9: M9 Release includes the following updates to the previous release: > Import / Export support from Excel for multiple file formats > Bug fixes and ...Nifty CSharp Tools: Event Watcher: Event Watcher!Paint.NET Bulk Image Processor: Paint.NET Bulk Image Processor v1.0: This is the initial release of the Paint.NET Bulk Image processor plugin. All feedback is welcome.PiPiBugNet: PiPiBugNet架构设计: PiPiBugNet架构设计，未包含功能实现RuneScape emulation done right.: rc0: Release cantidate 0.Rx Contrib: V1.6: Adding CCR queue as adapter for the ReactiveQueue credits goes to Yuval Mazor http://blogs.microsoft.co.il/blogs/yuvmaz/Silverlight Metro Theme: Silverlight Metro Theme Alpha 1: Silverlight Metro Theme Alpha 1Silverlight Stereoscopy: Silverlight Stereoscopy Alpha 1: Silverlight Stereoscopy Alpha 20100518Stratosphere: Stratosphere 1.0.6.0: Introduced support for batch put Introduced Support for conditional updates and consistent read Added support for select conditions Brought t...VCC: Latest build, v2.1.30518.0: Automatic drop of latest buildVideo Downloader: Example Program - 1.1: Example Program showing the features of the DLL and what can be achieved using it. For DLL Version 1.1.Video Downloader: Version 1.1: Version 1.1 See Home Page for usage and more information regarding new features. Please remember changes at You-Tube can prevent this software from...WatchersNET.TagCloud: WatchersNET.TagCloud 01.06.00: Whats New New Tag Mode: Show Tags from Ventrian.com NewsArticles Module New Tag Mode: Show Tags from Ventrian.com SimpleGallery Module Hyperlin...Windows Double Explorer: WDE v0.4: -optimization -switch to new vst2010 -viewer close now by pressing escape -reorder tabs -send selected fullname or shortnames via email (eye button...Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryMicrosoft SQL Server Community & SamplesPHPExcelASP.NETMost Active Projectspatterns & practices – Enterprise LibraryRawrPHPExcelGMap.NET - Great Maps for Windows Forms & PresentationCustomer Portal Accelerator for Microsoft Dynamics CRMBlogEngine.NETWindows Azure Command-line Tools for PHP DevelopersCassiniDev - Cassini 3.5/4.0 Developers EditionSQL Server PowerShell ExtensionsFluent Ribbon Control Suite

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