context Switch Deadlock

Question

When I Run My Application After Some Second This Exception Occurred. what is exception and How I Can Handle This Exception

The CLR has been unable to transition from COM context 0x647f10 to COM context 0x648080 for 60 seconds. The thread that owns the destination context/apartment is most likely either doing a non pumping wait or processing a very long running operation without pumping Windows messages. This situation generally has a negative performance impact and may even lead to the application becoming non responsive or memory usage accumulating continually over time. To avoid this problem, all single threaded apartment (STA) threads should use pumping wait primitives (such as CoWaitForMultipleHandles) and routinely pump messages during long running operations.

Answer 1

This typically occurs if you have something blocking your user interface thread, and are using COM components.

The best approach here is to move your long running operation into a background thread. This leaves your UI responsive, which also means that the COM messages can pump correctly. BackgroundWorker is a nice tool for this.