Unexpected error encountered opening Visual Studio project

Today while opening a win-form project, I got an exception message like this from Visual Studio. And then the Visual Studio project was not available in the solution. All the project said was “The project file cannot be loaded.” This error is because the project was under Subversion version control,...


Unit Testing Windows Phone Applications

Recently Microsoft released Update 2 for Visual Studio 2012. If you installed the Update 2, you will get a new project template, under Windows Phone, Windows Phone Unit Test App. This will help you to create unit test project for Windows Phone 8 applications. Once you create the project, necessary...


How to use existing Database in Windows Phone

Normally in Windows Phone apps, we used to create Database in the Application Launch event, like the following if (!dataContext.DatabaseExists()) { dataContext.CreateDatabase(); } And if there is any master tables you can write code to insert after database creation, like this. if (!dataContext.DatabaseExists()) { dataContext.CreateDatabase(); dataContext.Categories.InsertAllOnSubmit( new[] { DefaultCategory });...


Retrieving the COM class factory for component failed due to the following error: 800702e4.

While working on some outlook C# application I got a COM exception like this. Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80080005. My code was simply straight forward, I was just creating the instance of the outlook application. var oApp =...


Assembly Binding Redirection in .Net

Today I come across an application crash due to version mismatch. The application executable was compiled using version 1.0.x.x, and we were using 6.2.x.x. Due to this version mismatch application was crashing. Unfortunately we don’t have the source code of this application with us. Later I got one solution using...


How to apply border color for TableLayoutPanel

The TableLayoutPanel control arranges its contents in a grid. TableLayoutPanel doesn’t have border color property, but you can write custom code in CellPaint event to create border. Here is the code snippet which will help you to create border and apply color for TableLayoutPanel var panel = sender as TableLayoutPanel;...


How to send email messages with embedded images

While creating email messages with HTML content, normally the images are displayed with IMG tag, where the SRC attribute pointing to an image, which is hosted in the web server. Most email clients will not display the images, which is downloading from the web. Instead of pointing to web URL,...