I am developing web based application using asp.net and ajax. Today I am facing an issue, while dragging and dropping the ajax based components under the ajax enabled webform.
The error message is
The operation could not be completed. Invalid FORMATETC structure
If your answer is assembly then please let me know which assembly such issues (be specific about assemblies)
It is basically due to Ajax Toolkit assembly if you have added it as toolbox. Only way to get rid of this is to restart your IDE , whenever your have Formatetc error , or unload the toolbox and recreate it. Either of them will solve the. But it will not go. Occurance will become rare. Hope this help.
Ajax toolkit version < 3.5 seen such bugs.