We are working on a legacy ASP .NET 2.0 web application. I was wondering, if we can use Telerik ASP .NET AJAX ComboBox (ASP .NET RadControls 2012 Q1) in this web application? If not, is there any other way we can use this control in ASP .NET 2.0?
The .NET 2 support for ASP.NET AJAX controls has entered its Extended Paid Support phase as of Q1 2011. For .NET 2 applications you can use either the previous release (Q3 2010 SP2) or build the source code of the controls against .NET framework to produce assemblies for this version.
For more information check the following blog post and .NET Support documentation Discontinued Information blog .NET Support