Teleri controls didn't display in design mode in VS2010

[Gaurav]

Hi,

My client has purchased telerik controls and he gave me project in which I have
Telerik.Web.Design.dll
Telerik.Web.UI.dll
Purchased dll available and referenced it properly.
When we build and run this site it runs successfully.
But when we open a aspx page in design view in VS2010 at that time it didn't display me the controls and gives errors.
On this URL : http://www.telerik.com/help/aspnet-ajax/introduction-vsx-telerik-web-design-assembly.html
My problem is same as this URL.
We don't have installation file so now how can we solve this error?

Thanks

Gaurav

[Shinu]

Hello Gaurav,

Take a look at the following help documentation for solving the issue.
Design-time Troubleshooting.

Thanks,
Shinu.

[Gaurav]

Hi,

I tried this and lots of things like ; i installed trial version i my system but rad controls didn't displayed to me at design page.

I work on web application not on a web site so please help me how to view all rad controls displayed on design view?

It gives me same error "Failed to create designer"....

According to this we thought Rad controls are not a good option controls for asp.net development...