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I have used a RadEditor in webpart on Sharepoint 2010.However, some buttons like "Image Manager" or "Document Manager" or "Hyperlink Manager" and so forth in Editor doesn't work and return an error.
error is such as follow:
Server Error in '/' Application.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.
Requested URL: /_CONTROLTEMPLATES/Hojan.KMS.Webparts/KnowledgeEntry/Telerik.Web.UI.DialogHandler.aspx
any help appreciated.