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Articles indexed Sunday May 23 2010

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  • Suggest Wireless AP

    - by sunny
    I'm doing a data and voice install for a client in the hotel industry. I'm done with voice and am looking for my options to provide a Wireless AP. The building's dimensions are 100ft X 50ft. There are a ton of options out there which have left me confused now. Please help me decide. I am not clear as to how I should ensure that the Wireless Network is visible throughout the premises. Personally I would love to setup a WDS on 3-4 linksys wrt54gl routers using OpenWRT. Is this advisable? If not please recommend some other AP's. If a more expensive appliance is absolutely necessary, then please suggest something that can be powered using IEEE 802.3af PoE. Thanks

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  • C# Design Layout/Patterns

    - by wpfwannabe
    I am still fairly new to C# and I am trying to decide the best way to structure a new program. Here is what I want to do and I would like feed back on my idea. Presentation Layer Business Layer (Separate Class Library) Data Layer (Separate Class Library) Model Layer (Separate Class Library) What I am struggling with is if it is ok to have the classes in the Data Layer and Business Layer inherit from the types I define in Model Layer. This way I can extended the types as needed in my Business Layer with any new properties I see fit. I might not use every property from the Model type in my Business Layer class but is that really a big deal? If this isn't clear enough I can try and put together an example.

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  • Getting all the fields and properties of a custom attribute from a specific instance

    - by Gbps
    I have a custom attribute PackerAttrib which takes no data, simply marking a field or property, which will be used to mark a property or field of a class inherited from Panel in order to serialize it later on. How would I take an instance of any object derived from Panel and get a Directory<string s, object o> where s is the name of the field or property and o is the current value of said field or property from the instance. Thank you, don't be afraid to ask me to clarify!

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  • How to generate graphs and statistics from SQLAlchemy tables [Python]?

    - by Az
    Hi all, After running a bunch of simulations I'm going to be outputting the results into a table created using SQLAlchemy. I plan to use this data to generatw statistics - mean and variance being key. These, in turn, will be used to generate some graphs - histograms/line graphs, pie-charts and box-and-whisker plots specifically. I'm aware of the Python graphing libraries like matplotlib. The thing is, I'm not sure how to have this integrate with the information contained within the database tables. Any suggestions on how to make these two play with each other? The main problem is that I'm not sure how to supply the information as "data sets" to the graphing library. Thanks in advance.

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  • Cannot have a qualifier in the select list while performing a JOIN w/ USING keyword.

    - by JuiceBerry123
    I am looking at a practice test that doesn't have explanations about the correct answers. The question I'm confused about basically asks why the following SQL statement can never work: SELECT oi.order_id, product_jd, order_date FROM order_items oi JOIN orders o USING(order_id); The answer it gave was: "The statement would not execute because the column part of the USING clause cannot have a qualifier in the SELECT list" Can someone elaborate on this? I am pretty stumped.

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  • Slow SQL Sync with Microsoft Sync Framework on Mobile Client

    - by Malkier
    Hello, we are developing an application which uses MS Sync Framework to sync data between Windows CE 6.0 with SQL CE 3.5 SP1 Clients and an SQL 2008 Database. Our major problem is a slow sync time up to 1 minute for 15 tables which are totally empty. Here's a break down of our components: Server: Sql Server 2008 15 tables with activated change tracking WCF Service with endpoint for the mobile sync (uses Sync Framework 2.0) Client (Mobile) Windows CE 6.0 NET Application using Sync Framework for Devices (CTP 1) which starts the sync As I mentioned above, the sync takes up to 1 minute without any changes and empty tables. The mobile device is in its dock. This is a deal breaker for a production environment. Does anybody have any experience in this field? Is there a way to improve things? Thanks for any responses.

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  • enabling the "return button" in a UITextField keyboard (objective-c/iphone)

    - by peter61
    When I start editing a UITextField, I have the "Clear When Editing Begins" option checked so it starts off with no text. However, the "Return" button is grayed out until you type at least one character. I've seen other iphone apps where the "Return" button is not grayed out (and if you press it with no text, then it goes back to what the text used to be). How is this done? Thanks.

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  • Why doesn't my CreateRibbonExtensibilityObject method get called?

    - by DGGenuine
    Hi I've been tinkering around with the two techniques to modify the ribbon with an MS Word addin (Visual Studio 2010, .NET 3.5), a Microsoft.Office.Tools.Ribbon.OfficeRibbon and Microsoft.Office.Core.IRibbonExtensibility. I was hoping to switch between the two in my addin's CreateRibbonExtensibilityObject, but for some reason it is not called now. The documentation says that if an addin implements CreateRibbonExtensibilityObject that it will be called. When I create a fresh project to test doing this very thing, it works. I'd prefer not to abandon my project as-is. Any ideas? Thank you.

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  • What is the keyboard shortcut to clear formatting on Office 2008 Mac?

    - by Laurent Bourgault-Roy
    I recently switched from a PC to a brand new Macbook Pro. I was happy to see that most of the keyboard shortcuts in Word 2008 where the same or almost the same than in Word 2007. However, there is one keyboard shortcut that I dearly miss : the clear formatting shortcut (ctrl + space on Windows). I know the feature exists since it's in the formatting bar, but I can't find the keyboard shorcut. I tried cmd + space but that is the system keyboard shortcut to switch the keyboard type. alt + space delete the text without deleting the formatting. ctrl + space doesn't seem to do anything. Does anyone know what the keyboard shortcut for the clear formatting command may be? I hope there's one because it's really painful to reach for the mouse everytime I put a title and I want to switch to a normal paragraph style...

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  • Is the Asus Lion Square compatible with an AMD Athlon II AM3?

    - by wag2639
    I bought an Asus Lion Square compatible with a AMD Athlon II X3 435 Socket AM3 processor? I know strictly speaking, the Lion Square specifies AM2 but I'm a little confused since AM2 and AM3 are suppose to be socket compatible (I'm a little confused here as well but I assume it means an AM3 board will support AM2/AM2+ CPUs). However, will there be a problem with chip height and spacing? Or do people have experience asking ASUS for a standoff adapter?

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  • Weird characters at the beginning of a LPTSTR? C++

    - by extintor
    I am using this code to get the windows version: define BUFSIZE 256 bool config::GetOS(LPTSTR OSv) { OSVERSIONINFOEX osve; BOOL bOsVersionInfoEx; ZeroMemory(&osve, sizeof(OSVERSIONINFOEX)); osve.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX); if( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osve)) ) return false; TCHAR buf[BUFSIZE]; StringCchPrintf(buf, BUFSIZE, TEXT("%u.%u.%u.%u"), osve.dwPlatformId, osve.dwMajorVersion, osve.dwMinorVersion, osve.dwBuildNumber); StringCchCat(OSv, BUFSIZE, buf); return true; } And I am testing it with: LPTSTR OSv= new TCHAR[BUFSIZE]; config c; c.GetOS(OSv); MessageBox(OSv, 0, 0); And in the msgbox I get something like this äì5.1.20 (where 5.1.20 is = to OSv) but the first 2 or 3 chars are some weird characters that I don't know when they came from. Even stranger, if I call that second piece again it shows it ok, it only show the weird characters the first time I execute it. Does someone has an idea what's going on here?

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  • Design Layout/Patterns

    - by wpfwannabe
    I am still fairly new to C# and I am trying to decide the best way to structure a new program. Here is what I want to do and I would like feed back on my idea. Presentation Layer Business Layer (Separate Class Library) Data Layer (Separate Class Library) Model Layer (Separate Class Library) What I am struggling with is if it is ok to have the classes in the Data Layer and Business Layer inherit from the types I define in Model Layer. This way I can extended the types as needed in my Business Layer with any new properties I see fit. I might not use every property from the Model type in my Business Layer class but is that really a big deal? If this isn't clear enough I can try and put together an example.

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  • IntelliSense based snippet handling with Visual Studio 2010 SDK MEF Based text editor

    - by Nicolai Ustinov
    Using the new Visual Studio 2010 SDK developing against the MEF based editor structure there's a question: How can I use the MEF editor interfaces to handle snippet behavior in IntelliSense? The ICompletionSession itself is not a problem (e.g. get the available snippets) rather filling the snippet, handling the subsequently expected actions like tab, enter behavior, text replacement, etc. Is there any way to do that without a language service? Checking the built-in behavior in Visual Studio base editor implementation they built the MEF interfaces on top of a set of language service based objects.

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  • C++ destructos causing crash's

    - by larsonator
    ok, so i got a some what intricate program that simulates the uni systems of students, units, and students enrolling in units. Students are stored in a binary search tree, Units are stored in a standard list. Student has a list of Unit Pointers, to store which units he/she is enrolled in Unit has a list of Student pointers, to store students which are enrolled in that unit. The unit collections (storing units in a list) as made as a static variable where the main function is, as is the Binary search tree of students. when its finaly time to close the program, i call the destructors of each. but at some stage, during the destructors on the unit side, Unhandled exception at 0x002e4200 in ClassAllocation.exe: 0xC0000005: Access violation reading location 0x00000000. UnitCollection destructor: UnitCol::~UnitCol() { list<Unit>::iterator itr; for(itr = UnitCollection.begin(); itr != UnitCollection.end();) { UnitCollection.pop_front(); itr = UnitCollection.begin(); } } Unit Destructor Unit::~Unit() { } now i got the same sorta problem on the student side of things BST destructors void StudentCol::Destructor(const BTreeNode * r) { if(r!= 0) { Destructor(r->getLChild()); Destructor(r->getRChild()); delete r; } } StudentCol::~StudentCol() { Destructor(root); } Student Destructor Student::~Student() { } so yeah any help would be greatly appreciated

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  • Visual Studio Shell Based Application

    - by nils_gate
    My new project would be a custom IDE for proprietary Application creation. This can be a Shell based application on VS Shell. I wanted to know what are the license requirement for these kind of applications. My question: If I create my project as VS Shell based Application, what kind of license is required by the end user of the Shell based application?

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  • Adding resources to solution explorer in experimental hive

    - by Brian Webb
    Hi, I'm currently working on a project using DSL tools in Visual Studio 2008. Is there a way to automatically add a resource into the solution explorer of the experimental hive at runtime? I'm creating new diagrams based on what is on screen, and saving them into the directory the project is stored in. I would like to know if there is a way to get them to automatically get added to the solution explorer? (I don't want to have to drag the files in manually each time)

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  • Is it possible to add a New Project Wizard with a VSPackage?

    - by Gerald
    I have a VSPackage for Visual Studio 2008 that I created for adding some editor and custom language functionality. I also have a need to add a new project/solution wizard to create a new Solution and a complex series of C++ projects to the solution. I know I can do this using a "Custom Wizard", but I would be much happier if I can implement this within my VSPackage using C# instead. So I guess the main question is, is it possible to add an entry to the Project Types dialogs in Visual Studio from a VSPackage? Or is the "Custom Wizard" and JScript my only option here? And if it's possible, where can I find information and/or samples on how to accomplish this?

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  • TFS Client APIs for creating workitem templates?

    - by amazedsaint
    Of course, it is pretty possible to create work items, get a list of work items etc in TFS. In addition to this, we need to have the functionality of allowing our users to create their own work item templates, for various file types. Whether the TFS Client APIs are capable of uploading work item templates to TFS server?

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  • Microsoft Visual Studio SDK DSL Tools - Any serious takers?

    - by amazedsaint
    We are considering Microsoft DSL toolkit for creating some abstract designers. I already did some POCs, but would like to get some opinions on the same. Any one here to share their experiences working with Microsoft DSL Toolkit and T4? Also, any pointers to open source DSL projects will help - Eg. Microsoft Service Factory modeling edition is heavily relying on DSL toolkit. As OSLO/Quadrant will take some time to get released, I think the only option we have is to rely on Microsoft DSL designer. (See Kieth's blog on the same) Also, here is some information I already have on DSL: 1 - A Nice Lab in MSDN on DSL tools 2 - A List of Projects in Codeplex using DSL toolkit

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  • Zend file upload error

    - by jgnasser
    I am attempting to upload a file using Zend Framework 1.8 and I get some errors. Here is the code snippet: The form element: $element = new Zend_Form_Element_File('doc'); $element->setLabel('Upload an image:') ->setDestination('/path/to/my/upload/folder'); $element->addValidator('Count', false, 1); $element->addValidator('Size', false, 102400); $element->addValidator('Extension', false, 'jpg,png,gif,doc,docx,xls,xlsx,txt'); $this->addElement($element); The code for handling the upload: $adapter = new Zend_File_Transfer_Adapter_Http(); if (!$adapter->receive()) { $messages = $adapter->getMessages(); echo implode("\n", $messages); } This works fine and the file is uploaded but I get the error "The file 'doc' was illegal uploaded, possible attack". I managed to get past this problem by not creating a new Zend_File_Transfer_Adapter_Http() but instead using: $adapter = $form->doc->getTransferAdapter(); With this modification, the first error disappears but now I have an error saying I have provided 2 files instead of one (probably its reading the temp) and when I adjust the validator to accept two files I then get the arror saying "The file 'doc' was not found" and the upload now fails completely. Please help

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