Equivalent to InvokeRequired in WPF

Question

Is there an equivalent to Form.InvokeRequired in WPF, e.g. Dispatcher.InvokeRequired?

Answer 1

This is slightly odd as it doesn't appear in intellisense, but you can use:

var dispatcher = myDispatcherObject.Dispatcher;
if (dispatcher.CheckAccess()) { /* ... */ }

As all UI components inherit from DispatcherObject this should solve your specific problem, but it is not specific to the UI thread - it can be used for any dispatcher.

Answer 2

The equivalent is Dispatcher.CheckAccess.

Answer 3

A possible solution that came to mind is:

if ( Dispatcher.Thread.Equals( Thread.CurrentThread ) )
{
    Action( );
}
else
{
    Dispatcher.Invoke( Action );
}