Solution:invalid formatetc structure

Hi.

.Recently I worked with my one latest project ..In this one I opened to source files I worked on it…when I was busy In coding I opened at a time two file..I copied one source code and paste it another one..including ajax control..

Suddenly what happen when I drag one new ajax control from menu  its shows an error like invalid formatetc structure.

I opened and closed the project against it shows an same error.i cann’t any new ajax control in my project.

Solution:

Finally I removed all the ajax control  then I added again all the ajax control using dll file..Then its work fine…..