Vladimir Tchalkov MVP's Q&A profile

• Visual C# Abstract classes and static methods

  Hello there! I was wondering why is not possible to define a static method into an abstract class, well... I was wondering that because I'm trying to force an user who inherits from this class to implement a static class and I just didn't find a way to do that... is there a way to do this Because there's a layer calling static methods and I don't want to change these methods to regular methods just because I'm not being able to solve this problem... Thanks Static methods can be defined in an abstract class. However, you cannot force a derived class to implement a static method. If you think about it, such a method would be ...Show All

• Smart Device Development Receiving SMS example

  Hi all, Have anyone tried the Receiving SMS example from the MSDN library There seems to be a problem... It seems that I can deploy it to my PPC but an error of MissingMethodException at the function call to DllRegisterServer() will always occur. Need help urgently!!! Hi Vnewbie    U asked for a converted app for VB but then said got tat exmple already, wer did u get it from can u pls help me... cz i even need the same in VB... Tanx in advance... ...Show All

• Visual Studio Team System Policy violations email

  How do I set up the email address(es) to which I send emails if there has been a source control check-in policy violation Thanks You can also look in the version control database and query it to find the policy violators...it can be quite a hoot what some people write as their excuse... ...Show All

• Windows Forms Form Position

  I use the load routine of the form to position dialogs relative to the parent but when I use .Show instead of .ShowDialog to show a modeless form the load statement doesn't seem to execute My mistake - I returned to the project after your message and it seems to work now. I must have been doing something brainless. Thanks for the help. ...Show All

• Visual Studio Team System "AvoidNamespacesWithFewTypes" in Code Analysis

  The help on this topics indicates that the casue for this warning is: "A namespace other than the global namespace contains fewer than five types." I get such a warning in a namespace that has 11 types defined in it (10 classes and one interface). So why am I getting the warning which seems to apply only for namespaces having fewer than five types Is that a bug in code analysis I'd take a closer look at your binary. Are you not using any sub-namespaces If you'd like to zip up the code and send it to mikefan at microsoft dot com, I'll tell you what's going on. It's not very likely we've got a bug here, the functionality around this chec ...Show All

• .NET Development VS 2005 + SQL Express 2005 - Database connection error - An error has occurred while establishing...

  I created a sample application that has a mdf file and tries to connect to the SQL server express with the following connection string. Data Source=.;database=sample;Integrated Security=true;AttachDBFilename=sample.mdf When I open the connection, I am getting the following error. An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error:40 - Could not open a connection to SQL Server). I also tried enabling Local and remote connections us ...Show All

• Visual Studio 2008 (Pre-release) ADO.NET Entity Framework documents are back

  The original articles about the ADO.NET Entity Framework didn't stay online very long, but this time, two official documents are available: The ADO.NET Entity Framework Overview Next-Generation Data Access (Making the conceptual level real) These documents will give you an overview of what is coming in the next version of ADO.NET, mainly the ADO.NET Entity Framework, which is Microsoft's upcoming solution for mapping data to objects. In these documents, you'll encounter the following: The Entity Data Model Entity SQL LINQ to Entities LINQ to DataSets LINQ to SQL (formerly known as DLinq) Note: there is no preview release of the Entit ...Show All

• Visual Studio Visual Studio 2005, Crystal Reports and Shared Hosting

  Hello there. I represent a hosting company and will like to know the answer to the following question : One of our clients have purchased Visual Studio 2005 Profesional Edition and have developed his website with it. He used the bundled Crystal Reports functionality in a section of his website. This website is hosted on shared hosting environment. His only deployment options are via FrontPage extensions or FTP. - How is he supposed to make work the Crystal Reports section of his website - I understand there is a runtime that needs to be installed on the server. Where is this runtime Will apreciate if somebody provide this answers or point ...Show All

• SQL Server Visual Studio 2005 The remote connection to the device has been lost. Please verify the device connection and restart debugging.

  Basically I've been using Visual Studio 2005 for a few weeks now moving a Pocket PC project from 2003 to 2005. When I hit the Start Debugging Button every time until today the project would rebuild and deploy to my pocket PC allowing me to debug etc but now I get The remote connection to the device has been lost. Please verify the device conection and restart debugging. I used to get this problem in VS2003 sometimes and just like the numerous posts on different sites that I've looked at the problem eventually goes away and I'm none the wiser. One guy said that he found that if he went to bed the problem was resolved when he came bac ...Show All

• Windows Forms How can I Get the SocketID????

  We know that in the VB6.0 we can use  TcpWsock_ConnectionRequest(ByVal requestID As Long) Here we can got the ID during requestID for returns , but.... How can I Get the ID like that in my VB.Net application I'm sure others that might answer will know more than I on sockets. With that in mind, here's a little bit of info you might&n ...Show All

• Visual Studio Team System Merging individual changesets

  I was under the impression that if I did a merge and specified a specific changeset as in: C:\Foo\Branches\Releases> h merge /preview /version:C39 RB-1.0 $/Foo/Trunk and that changeset only contained a change to one file then that one file would be the only one affected by the merge   I am getting other files with conflicts that weren't part of changeset 39.  Is this a bug or (more likely) is my understanding of merging with TF VCS wrong I'll file a suggestion to change the merge /version syntax to be /version:~ version for catch-up merges, instead of /version: version . As you probably&nb ...Show All

• Visual C++ C++/CLI Interoperability Issue

  When you create a project (class library) type of C++/CLI, the compiler changes all of the int/double, ... to Value type. for example consider this (a method in a class):     public: void MVTSetup([Out]array<double>^ %nus,                 [Out]int^ %Sumnu,    [Out]array<double, 2>^ %Tds, [Out]int^ %Hp, [Out]array<double>^ %Q3range, [Out]array<double>^ %Du,                 [Out]array<double>^ %Dy, [Out]array<double, 2>^ %Gus, [Out]array<double, 2>^ %Gss, ...Show All

• Visual C# GDI form transparency problem

  I'm trying to draw a transparent form using GDI, by overiding the OnPaint and OnPaintBackground event handlers. This technique works well enough on the first draw,and it produces a nice result, however, on subsequent draws, it works less spectacularly. For some reason, the screen is never cleared, and when it redraws the new things are composited ontop the previous draws, making the transparent images darker and darker. Here is the contents of protected override void OnPaint(PaintEventArgs e) { Graphics g = null; Assembly assembly = Assembly.GetExecutingAssembly(); Point point = new Point(400,400); backBuffer ...Show All

• .NET Development No symbols are loaded for any call stack frame. The source code cannot be displayed.

  Hello. I installed VisualStudio.NET 2005 a few days ago.  ( not beta ) While I'm debugging, I'm faced with strange message box. -- MessageBox -- No symbols are loaded for any call stack frame. The source code cannot be displayed. -- Debug Detail Window -- FatalExecutionEngineError was detected Message: The runtime has encountered a fatal error. The address of the error was at 0x7a2b5aec, on thread 0x358. The error code is 0xc0000005. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code. Common sources of this bug include user marshaling errors for COM-interop or PInvoke, which may corrupt the stac ...Show All

• SQL Server

  I have a stiuation where I need to import data from Excel and of course I'm using DTS to do so. Because the spreadsheets have a variety of datatypes in them, I have to make sure that DTS recognizes certain rows as INT so they will import properly, to do so I add 5 rows of 1's to the top lines of the individual sheets in the correct columns. After the 1's are entered I import to staging tables and then into the production tables. The package itself is run from a job and the job is called by a stored procedure running sp_start_job. Here is a sample of the ActiveX script I am using to alter the spreadsheets: ************************************ ...Show All