Safe Invoke - Thread Safe Dispatcher.CheckAccess(), Dispatcher.Invoke and Implementation

SafeInvoke.cs

public void DispatchIfNecessary(Action action) {
    if (!Dispatcher.CheckAccess())
        Dispatcher.Invoke(action);
    else
        action.Invoke();
}

// Invoke thread safe method
DispatchIfNecessary(() => {
    methodCall();
});