Anonymous Functions and Invoking in WPF

At first, I had a little bit of trouble going from multi-threaded WinForms to WPF. The reason is that Invoke changed quite a bit between the two. Here's how to do Invoke in WPF:

First off, for those who don't know, invoke is required when you want to change something for a control or window that is on a different thread than your current one. For example, if you want to Close your window after a timer elapses, you need to send that command back to the Window's thread.

Here's the easy way to do Invoke in your Window, along with the code for the example I just gave:

1delegate void VoidDelegate();
2
3void invokeAndDoAnything()
4{
5    this.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Normal, new VoidDelegate(delegate()
6    {
7        //Do anything you want to the window in here!
8    }));                                                                             
9}
10
11void timer2_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
12{
13    ((System.Timers.Timer)sender).Stop();
14    //Close the window after this timer is done.
15    //We can just use the Window's close function in the
16    //  VoidDelegate, because it happens to take no parameters
17    //  and return void.
18    this.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Normal, new VoidDelegate(Close));
19}

Pretty simple overall, you just need to know the correct syntax to do it. This way you can do multi-threading without worrying about those annoying cross-threaded operation errors, and with anonymous functions, you don't need to clutter up your code for small operations.