DragDrop registration did not succeed

Question

System.InvalidOperationException: DragDrop registration did not succeed. ---> System.Threading.ThreadStateException:

What does this except

Answer 1

I solved this error by using below code...I were using Background Worker and trying to access UI while background worker..that is why getting error - DragDrop registration did not succeed. We cannot access UI from the code running in background worker or in thread.

BeginInvoke((MethodInvoker)delegate
{
//write your code here...

});

Thanks Happy Coding... :