Skip to content

Category Archives: WPF

System.InvalidOperationException – Cross-thread operation not valid

05-Feb-10

System.InvalidOperationException – Cross-thread operation not valid: Control ‘xxxxx’ accessed from a thread other than the thread it was created on. Normally we get this exception when we try to modify some control property from another thread. This is because when a program executes the operating system will assign a thread for the creation of UI [...]

Also filed in .Net, .Net 3.0 / 3.5, Windows Forms | Tagged , , | Comments (0) »

WPF interoperability with Windows Forms

02-Nov-09

In October 24th 2009, I got a chance to attend MS Community Techdays at Trivandrum. One of the session was WPF interoperability with Windows Forms. By using this we can use WPF controls in Classic Windows based applications. For this you require a special control called “ElementHost“, if you developed any Windows based application in [...]

Also filed in .Net, .Net 3.0 / 3.5, Windows Forms | Tagged , , , | Comments (1) »

How to Store and Retrieve files from SQL Server Database

07-Oct-09

The forum I joined recently got lot of queries like How to Save Images in the Database, How to save files in SQL Server, How read files from Database etc. So I thought of writing a post regarding this. Even though I am part of a Web project, I am doing some Windows applications for [...]

Also filed in .Net, .Net 3.0 / 3.5, ASP.Net, SQL Server, Visual Studio, Windows Forms | Tagged , , , , , , | Comments (0) »

Consuming a C++ DLL in C#

10-Jul-09

While working on my current project, I had to use some low level I/O operations, but it was difficult using C#, and I got some C++ implementations. Then I thought of creating a DLL in C++ and use it in C#, but I didn’t get any code for the implementation. So I done some searching [...]

Also filed in .Net, .Net 3.0 / 3.5, Visual Studio, Win 32 API, Windows Forms | Tagged , , , , | Comments (0) »

Loading Image from URL in Windows Forms

19-May-09

Recently I got a chance to work on Windows Application, it is Twitter client using C#. In that I need to show some Image from a URL. I thought like Microsoft will provide some way to load Images from URL and I tried to do the same with “Image.FromFile” method. But it failed. [...]

Also filed in .Net, .Net 3.0 / 3.5 | Tagged , , , | Comments (0) »