Migrating Web application from .NET 2.0 with Ajax 1.0 to .NET 3.5

Migrating a web application developed in .NET 2.0, Ajax 1.0 and Ajax control tool kit 2005 to .NET 3.5 is quite simple following below steps :-

1. Open the solution using Visual Studio 2008 (this is migrate automatically all the projects in the solution and will update the references accordingly.

2. Remove the reference to Ajax control toolkit 2.0 and add the new reference to ajax control toolkit 3.5.

3. Since Ajax control toolkit is being used in your solution update tag to .

4. To improve performance load all .js file using a single user control and assign attribute CombineScripts attribute of scripmanager to "True". Reference CombineScripts.

5. Build the solution and web application should work absolutely fine.

To err is human, but to really foul things up requires a computer.

-Farmers' Almanac, 1978