We are doing some work for a client who has a number of web applications which were initially built in .net 2.0 and which use Telerik 2009.1.402.20.
As part of some minor changes to the applications. We also upgraded to .net 4.0. This has caused a number of issues with the telerik controls and we are assuming that there are compatibility issues between this version and .net 4.0.
We tried to fix a number of issues by using the known _DestoryTree JS fix. However this doesn't seem to have worked for many of the issues.
Could someone please advise on the following:
1 - Is there anyway around the incompatibility?
2 - If not and an upgrade in Telerik is required will this in itself cause other issues with the migration from the old version to the new? Are there issues with backward compatibility.
Thanks for your help.
1 Answer, 1 is accepted
In case you need to upgrade to .NET 4.0 you also need to upgrade your project to the latest UI for ASP.NET AJAX version or at least to one that supports .net 4.0. How to upgrade your project is described in the following article:
http://docs.telerik.com/devtools/aspnet-ajax/installation/upgrading-instructions/upgrading-a-trial-to-a-developer-license-or-to-a-newer-version#upgrade-to-a-newer-version-of-telerik-ui-for-aspnet-ajax
For more information about new functionality, improvements and fixes,visit the official Telerik website:
http://www.telerik.com/support/whats-new/aspnet-ajax
You can also refer to the Release History page where all changes for every release are available:
http://www.telerik.com/support/whats-new/aspnet-ajax/release-history
Regards,
Pavlina
Telerik