When was System.Windows.Threading.Dispatcher.Invoke(System.Delegate, System.Object[]) added?

Question

Some people using my app seem to be getting

System.MissingMethodException: Method not found: 
'System.Object System.Windows.Threading.Dispatcher.Invoke
    (System.Delegate, System.Object[])'

Does anyone know in what version of the framework this overload was added, is it safe to use?(its not marked deprecated).

Answer 1

The following Methods were added on 3.5 SP1 to the Dispatcher class

BeginInvoke(Delegate, array[]()[]), 
BeginInvoke(Delegate, DispatcherPriority, array[]()[]), 
Invoke(Delegate, array[]()[]), 
Invoke(Delegate, TimeSpan, array[]()[]), 
Invoke(Delegate, TimeSpan, DispatcherPriority, array[]()[]), 
Invoke(Delegate, DispatcherPriority, array[]()[])

Check out the following link:MSDN-Dispatcher-Class