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  • backgroundworkers or threadpools

    - by vbNewbie
    I am trying to create an app that allows multiple search requests to occur whilst maintaining use of the user interface to allow interaction. For the multiple search requests, I initially only had one search request running with user interaction still capable by using a backgroundworker to do this. Now I need to extend these functions by allowing more search functions and basically just queueing them up. I am not sure whether to use multiple backgroundworkers or use the threadpool since I want to be able to know the progress of each search job at any time.

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  • The type initializer for {Data.DataModule} threw an exception.

    - by squirms
    In visual basic, when in the "frmMain Events: Load", I get the following error The type initializer for 'projData.projDataModule' threw an exception. when running the code: var = 180 "var" is defined in projDataModule as Module projDataModule Public var As Double End Module When I rebuild the solution, It says "0 errors, 0 warnings" and will actually compile, however the Error list shows the following error: Error 1 Custom tool error: Failed to generate file: There is an error in XML document (1, 1). I:\Documents and Settings\Bill\Desktop\Projects\Data\My Project\Application.myapp 1 1 Data Any ideas or help at all would be greatly appreciated. Thanks in advance.

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  • Why does the VS2005 debugger not report "base." values properly? (was "Why is this if statement fail

    - by Rawling
    I'm working on an existing class that is two steps derived from System.Windows.Forms.Combo box. The class overrides the Text property thus: public override string Text { get { return this.AccessibilityObject.Value; } set { if (base.Text != value) { base.Text = value; } } } The reason given for that "get" is this MS bug: http://support.microsoft.com/kb/814346 However, I'm more interested in the fact that the "if" doesn't work. There are times where "base.Text != value" is true and yet pressing F10 steps straight to the closing } of the "set" and the Text property is not changed. I've seen this both by just checking values in the debugger, and putting a conditional breakpoint on that only breaks when the "if" statement's predicate is true. How on earth can "if" go wrong? The class between this and ComboBox doesn't touch the Text property. The bug above shouldn't really be affecting anything - it says it's fixed in VS2005. Is the debugger showing different values than the program itself sees? Update I think I've found what is happening here. The debugger is reporting value incorrectly (including evaluating conditional breakpoints incorrectly). To see this, try the following pair of classes: class MyBase { virtual public string Text { get { return "BaseText"; } } } class MyDerived : MyBase { public override string Text { get { string test = base.Text; return "DerivedText"; } } } Put a breakpoint on the last return statement, then run the code and access that property. In my VS2005, hovering over base.Text gives the value "DerivedText", but the variable test has been correctly set to "BaseText". So, new question: why does the debugger not handle base properly, and how can I get it to?

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  • "And" condition in C#/LINQ Query

    - by user1213055
    partial void PrintDocLetter1_CanExecute(ref bool result) { if (this.PatientsMasterItem.DoctorsMasterItem != null) { var Doctor = PatientsMasterItem.DoctorsMasterItem; var PatientList = Doctor.PatientsMasterItem; var Letters = PatientsMasterItem.LettersSentItem; if ((PatientList.Count() > 1) && (Letters.Any(i => i.LetterType == "DoctorLetter1"))) { result = false; } else { result = true; } } } I think something is wrong with my second condition. I'm trying to find two things. 1) Doctors with more than 1 patient. 2) Among those patients whether a lettertype called "DoctorLetter1" has been sent or not. The above code is working good for that particular record but not working other patients with same doctors where patient1 has already been sent with DoctorLetter1.

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  • Typemock - Worth the money?

    - by AngryHacker
    I know that this is a subjective question... Typemock is $799 per developer. Licences for 5 devs comes up to a pretty large sum. If someone here used Typemock and given that there are open source mocking frameworks, is it worth the money? Why?

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  • Updates to .NET Compact Framework in 2010?

    - by Vaccano
    This question (http://stackoverflow.com/questions/245566/net-compact-framework-4-0) asked this back before the release of VS 2010. The answer basically said to wait for the release. Now that the release is here, does anyone know? Is there an upgrade/update to the .NETCF? something past .NETCF 3.5?

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  • Auto comment all public members in a file

    - by ooo
    I have turned on warnings as errors and now i need to XML comment all of my public methods. just to get my program compiling, i just want to put placeholders for now. Is there anyway to automatically add XML comments to all of the public members in a class or a file. I see ghost doc which gives you good autogenerated XML comments but it still looks like it only does one member at a time.

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  • LINK : fatal error LNK1104: cannot open file '.obj'

    - by FL3SH
    I have a big problem with building a simple program. I am using many tutorials, instructions and I can't solve it. I edit the variable's path as follows: C/C++-General-Additionals Include Directories-MyOpenCv\build\include Linker-General-Additionals Library Directories-MyOpenCv\build\x86\vc11\lib Linker-Input-Additional Dependencies-*I added .libs The same in Debug and Release.Windows 8 x64, VS2012 x32, OpenCV 2.4.5

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  • Is it a Microsoft issue?

    - by Yigang Wu
    I have a exe was complied by VC6 and the file name is patch.exe, there is no manifest was added, in that case, the EXE file requires administrator privileges, even though I removed all codes, just keep a empty main(), the result is same. But if I change the EXE from patch.exe to a.exe, the issue is gone. Below is my test result. 1. EXE was complied by VC6 2. Without manifest or didn't specific privileges in manifest 3. the exe name included "patch" substring, case-insensitive Is it a Microsoft issue? Why? Tried VC2008, I can't repeat it.

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  • StringCollection changes on Settings.Default.Reload()

    - by Ask
    In my app Settings.Default.test is a StringCollection. I don't understand why this code StringCollection col = new StringCollection(); col.Add("1\r\n2\r\n"); Settings.Default.test = col; Settings.Default.Save(); Settings.Default.Reload(); Changes my text 1\r\n2\r\n to 1\n2\n on Reload. Is it default behavior or what? How to restore multiline text in my textbox on restart of my application?

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  • VC++ Debugger expression

    - by user85917
    In debug | Immediate window, why do i get this error: szTemp is a local variable at {,,Util.dll}MySock.Write("%s",szTemp) CXX0017: Error: symbol "szTemp" not found int SomeFunction( ..) { char* szSQL = new char[1024]; . . ---> Breakpoint.. Trying to run the expression here.. . . }

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  • VS Express - accessing image added to project folder

    - by Petr
    Hi, I would like to know following: I added the folder "Graphics" into my project and placed one BMP to it. Now I would like to load the image from my code, but I cannot figure out how. I know its simple with resources but is there a way without adding the image into resources? Thanks

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  • LNK1104: cannot open file 'kernel32.lib'

    - by Geoff
    I Had VS2010 installed but found that intellisense wasn't working. I looked on the web and found that I wasn't the only one who had that issue. So, I installed VS2008 and everything was fine. Then I decided to clean up my computer and removed VS2010 and immediately started getting this error on my programs (new and old). Even a simple test program that has one cout command. I tried repairing VS2008 and that didn't work so I tried to uninstall and then reinstall and still I am getting the same problem. I have looked online for this issue and though I have found a lot of other people are experiencing this issue it is not the same. They are having problems with other external references, not the ones that should automatically be included like kernel32 and lib32 etc. I also tried the solution that worked for some people with their other references and I included the path (with and without quotes) to my kernel32 directory but still I get the same problem, or in some instances I will get LNK1104: cannot open file 'C:\WINDOWS\system32.obj' with and without quotes in the linker config. Can anyone please help?

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  • Turning Resharper on/off

    - by jmayor
    Can I switch reshaper on/off in a simple manner. The issue is sometimes I dealing with big files and makes my VS slow, sometimes it pops out a message telling me resharper is out of memory. Can I active/deactive it without having to reload the solution?

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  • How to set a registry condition in a setup project?

    - by serhio
    I have a setup project and I add some registry keys. Say I have a key ..\MyApplication\ServerIp key. When installing the second time I'd like that the ancient value will not be overridden. 1) What kind of "Condition" should I set in the setup properties of ServerIp registry key. 2) Is it possible to recuperate the ancient value from registry and display it in the "ServerIp" textBox in the installer dialog box? In this case the override could be unconditional.

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  • Do I always need to rebuild the project containing references to sub project's dll, if sub projects

    - by Puneet Dudeja
    I have a solution containing 4 class library projects and one "web site" project. The web site project contains references to the 3 class library projects, whenever I make changes in any of the class library projects, the only option I see is to rebuild the web site which takes a lot of time. Is there any option that I can only update the dll references and the changes are reflected in the web site project ?

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  • Disable AND and OR keywords

    - by boris callens
    In VB.net the ANDALSO and ORELSE keywords should basically always be prefered over the AND and OR keywords. What is the easiest way to disable the AND and OR keywords? I'm thinking FXCop (maybe somebody has already written this rule). Maybe just some setting in VS (we're currently using 2008 and are moving to 2010 end of the summer) I'm open for all suggestions.

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  • C++, overloading std::swap, compiler error, VS 2010

    - by Ian
    I would like to overload std::swap in my template class. In the following code (simplified) #ifndef Point2D_H #define Point2D_H template <class T> class Point2D { protected: T x; T y; public: Point2D () : x ( 0 ), y ( 0 ) {} Point2D( const T &x_, const T &y_ ) : x ( x_ ), y ( y_ ) {} .... public: void swap ( Point2D <T> &p ); }; template <class T> inline void swap ( Point2D <T> &p1, Point2D <T> &p2 ) { p1.swap ( p2 ); } namespace std { template <class T> inline void swap ( Point2D <T> &p1, Point2D <T> &p2 ) { p1.swap ( p2 ); } } template <class T> void Point2D <T>::swap ( Point2D <T> &p ) { using (std::swap); swap ( x, p.x ); swap ( y, p.y ); } #endif there is a compiler error (only in VS 2010): error C2668: 'std::swap' : ambiguous call to overloaded I do not know why, std::swap should be overoaded... Using g ++ code works perfectly. Without templates (i.e. Point2D is not a template class) this code also works.. Thanks for your help.

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