How to reslove it?

[grilkip]

this code keeps checking if a checkbox is checked and terminates the thread if it isn't.

	private void button1_Click(object sender, System.EventArgs e)
		{
			System.Diagnostics.Debug.WriteLine("startthread");
			Thread t = new Thread(new ThreadStart(threader));
			t.Start();
		}

		private void threader()
		{
			Thread.Sleep(100);
			if (this.checkBox1.Checked)
			{

				threader();
			}
			else
			{
				System.Diagnostics.Debug.WriteLine("stop");
			}
		}