Controlling form elements from a different thread in Windows Mobile

Question

Trying to get a thread to change form controls in Windows Mobile.

Throws an unsupported exception.

Does this mean it cant be done at all?

If not, how do

Answer 1

You need to use the Control.InvokeRequired property as UI elements must be accessed from the main thread.

In your background thread you raise an event.

public event EventHandler MyApp_MyEvent;

this.MyApp_MyEvent(this, new MyEventArgs(MyArg));

In you main UI thread you subscribe to that event:

this.myThread.MyApp_MyEvent+= this.MyAppEventHandler;

and the handler itself:

private void MyApp_EventHandler(object sender, MyEventArgs e)
{
    if (this.MyControl.InvokeRequired)
    {
        this.MyControl.Invoke((MethodInvoker)delegate { this.MyAction(e.MyArg); });
    }
    else
    {
        this.MyAction(e.MyArg);
    }
}