The operation could not be completed

[Administrator]

Hi

I have a WebUserControl, with prexisting code, which has some Telerik Controls.

I am trying to add a SFScriptManager and DiagramWebControl to the Code.

But always when I drag oneof the two, from the Toolbox to the Code I get the error "The operation could not be completed".

Anybody have ANY IDEA, what the problem might be?

It does work with new Projects, but not with the preexisting once, whcih used to be Visual Studio 2005 Project but is not 2008.

The Syncfusion Version I use is 7.2.0.19

Thanks for any help

Thorsten

[Administrator]

Hi Thorsten,

Thank you for choosing Syncfusion Products.

There may be two chances for the error.

1.The issue may be occurred because of version conflict in Webconfig file, that is Syncfusion assembly version referred in Webconfig file differ from Syncfuison toolbox version.

2.The second one is may be Syncfusion Tools in tool box referred from previous version.That is Syncfusion Tools in tool box instead of referring current version (7.2.0.19) it may refer the previous version.

Please check above two possibilities in your project. Let me know whether you have upgraded our Syncfusion version.

Regards,
Gowri