PivotGridControl allows a sequence of operations that affect its appearance and/or functionality to be performed without having the control render itself after each modification. To do this, the code performing sequential changes to the Pivot Grid Control must be enclosed within calls to the PivotGridControl.BeginUpdate and EndUpdateAsync (or PivotGridControl.EndUpdate for a synchronous update) methods. This improves performance, and avoids unnecessary rendering operations.
The EndUpdateAsync method is asynchronous. It starts executing the related operation in a background thread, and immediately returns control. The primary UI thread is not blocked, allowing the application to continue responding to end-user actions. For more information about the asynchronous mode, see Asynchronous Mode.
If you need to perform specific actions after this operation is completed, use another overload of the EndUpdateAsync method that takes the asyncCompleted parameter, and pass a delegate that performs the required actions as this parameter.