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How do I write to the Visual Studio Output window? Can I read user input from there like I can in Eclipse?

How do I play animated gif or an avi clip in a Form?

I want to print a float with value 1.98765 with only 2 decimals: (1.99 in this case). How?

I’m about to call a function in a native windows dll from my managed C# dll project. I want the function to return some kind of string (char*) so I get it as a System.String in my mandaged dll. How can I do that? I’ve tried to add CLR support on my native dll but for different reasons it can’t...

I’m struggling with a thread that should update a TreeView. I’ve started to use the Control.Invoke method when for e.g. adding nodes and so on. I now wonder how I “Invoke” a property. (I got the “Cross-thread exeption…” when I try to set the TreeView.ImageIndex property)

I’ve created a Spash-form that shows and hides while my main form initializes. When I closes the splash-form my main window is paced behind other applications in Windows. How can I force my application form to be the “on top application”? I’ve tried all these functions: this.Activate()...

I have a program that reads Microsoft Project 2003 XML-files Now I'm in need to read in mpd-files as well. Any tip on how I can do that? A simple tool/service for converiting mpd to xml would be great!

I’m coding in C# and I am working with a COM object that I earlier in C++ made this call: COleVariant varBeforeEnd(DISP_E_MEMBERNOTFOUND, VT_ERROR); hresult = pTemp->Add(knownObject, &varBeforeEnd ); How do I make the call in C#? The IDE in VisualStudio say that the Add(…) function should...

I’m about to create an options dialog that will be opened from my windows application main Forms menu. I have many different “modules” in the application which each of them need to have an own options dialog. For sure this is a common situation. I need some kind of “pattern” to create an...

Where can I find the typed dataset for MS Project XML files? Iv’e tried to create my own but when trying to read an MS Project XML-file like this: MSProjectDataSet dataset = new MSProjectDataSet(); dataset.ReadXML(“savedXMLfileFromProject.xml”); I get different exceptions. All tips in this...

Where can I find the XSD schema for how Microsoft Project 2003 XML-files are formatted? I’ve searched on MSDN but no result…

I get the mouse position using Control.MousePosition. How can I convert this global mouse-cords to a windows local cords?

I finally have an understanding of how to create simple reports from my dataset using the ReportViewer. I now wonder how I can make custom (SQL-queries) on my dataset that will fill for e.g. a table. For example I have a picture that I like to insert into my report. That picture do I store as a...

I’ve made some reports using the ReportViewer and Reports (*.rdlc-files) in visual studio 2005. I really enjoy the ReportViewer!! My reports is now generated direct from my SQL 2005 database but I now want to generate a report from a typed DataSet that is instantiated locally in the program (my...

I hane an application where one of my dialogs is created when the program starts. I like to call Form.Show() and Form.Hide() to show and hide the form. When the user presses the system-X button the form is per default disposed. How do I prevent that I just want a Form.Hide() when the user...

I like to preview some Image objects in 64*64 format in some kind of control. Is there any .NET control for that. I only find the ListView control but with that I only can preview pictures in 16*16 format and that is to small for me…

Is it possible to for e.g. send a MFC CString as a System::Object^ parameter. I’m between an unmanaged and an managed environment.

I’m working with an ActiveX and it’s API has some samples on how to handle COM interfaces and so on. How do I make the call QueryInterface in C#? My C++ codline work like this: hr = pMaterialField -> QueryInterface ( IID_ISFColorObject, (void**)ppDiffuseColor );

I’m using a third party ActiveX control in my .NET Application. I manage to handle the callback in unmanaged C++ like this: class MyCallback : public ICallback { … void OnComplete() {…} } … MyCallback *callback = new MyCallback(); someobject->SomeFunction(“just a string”, callback); The...

I’m going to build an application that should be based on plugins that extend the core application with extra customer specific functions. I like my plugins to have a common look, fell, and behaviour. I like tips on how to design my application to make it extendible. I like some tips on design...