How Invoke work?

Question

When I use invoke is this mean I am in UI thread and my function is executed in UI thread or just the control is in UI thread

Answer 1

Invoke is something which can be called in all threads.
It does not tell you that you are in the UI-thread.

It can be translated to "Do this method now"

The method is the method where the delegate is pointing to.

http://www.tutorialsteacher.com/csharp/csharp-delegates

Are you creating a own delegate or are you trying to solve the
"The calling thread cannot access this object because a different thread owns it." exception

Answer 2

Thanks you sneeze, my problem was is I using thread, which include to invoke Datagridview and I using for loop to delete a lot of rows from datatable that bound to Datagridview, and my program is not responding when it came to delete, sorry for bad English.