Question

This is just a curious question. Which one is the best way to update UI from another thread. First, this one:

private delegate void MyDelegateMethod();
void MyMethod()
{
    if (unknowncontrol.InvokeRequired)
    {
        this.BeginInvoke(new MyDelegateMethod(MyMethod));
        return;
    }
    unknowncontrol.property = "updating!";
}

On the other hand:

Invoke((System.Threading.ThreadStart)delegate()
{
    unknowncontrol.property = "updating!";
});

Or, is there a better way to do this?

Of course this is for WinForms, for WPF there’s the dispatcher. How is the code for WPF?

I’m asking, ’cause, in the past I experienced errors when updating UI from a raised event using both of the options above. The kind of error like: “there is no source code available”. I assume all of us have seen them :D.

Thanks, and have a nice day!

Answer 1

Check out Roy Osherove’s blog post on this: http://osherove.com/blog/2006/3/1/the-3-ways-to-create-a-thread-safe-gui-with-net-20-with-one.html

delegate void Func<T>(T t);
Func del = delegate
{

  // UI Code goes here
};
Invoke(del);