Do I need Control.Invoke()?

[Mike Hildner]

I'm wondering if this code is ok or if maybe I should be doing Control.Invoke(). Not that I know how to do .Invoke. The code seems to run just fine.

private void btnLogon_Click(object sender, System.EventArgs e)
{
	Thread t = new Thread(new ThreadStart(IncrementProgressBar));
	t.Start();
.
.
.

private void IncrementProgressBar()
{
	do
	{
		if (progressBar1.Value >= 95)
		{
		        progressBar1.Value = 0;
		}
		progressBar1.Value += 5;
		Thread.Sleep(250);
	}
	while (true);
}

I thought there was a trick with modifying a control from a different thread, but not sure if you only need to do that with a method and not a property.

Thanks,
Mike