Rad Controls in Nested Master Page

[Leonard Jones]

When I place a Rad Control in a Child Master Page which is nested within a Parent Master Page I get the following rollover error with the telerik: prefix, "Unrecognized tag prefix or device filter 'telerik'"

To demonstrate the problem I have used the Nested MasterPages with two level TabStrip project from the Code Library and added a Rad Control to the AnimalsMaster.Master page. A screenshot of the problem is attached.

Rgds Len Jones

[Veronica]

Hi Leonard Jones,

The reason you got this error is because you are trying to add control in the ContentPlaceHolder of the master page which is not allowed. Just move the RadMenu up in the MainContent and outside the ContentPlaceHolder and everything will be fine.

All the best,
Veronica Milcheva
the Telerik team

[Chad]

Could you explain why adding a control in the ContentPlaceHolder of the master page is not allowed?

[Shinu]

Hi Chad,

Please have a look into this help documentation which discuss about the Master-Content Page concepts.

Thanks,
Shinu.

[Chad]

Hi Shinu,

I know what a Master-Content Page is.  Could you explain why adding a control in the ContentPlaceHolder of the master page is not allowed?