First button click to start timer, second to stop

Question

I'm struggling with making button first click to start a timer, second click to stop the timer and etc.

Can anybody help me? :)

private void button7_Click(object sender, EventArgs e)
{
    timer1.Start();
}

Answer 1

Use the Enabled property:

if (timer1.Enabled) {
  timer1.Stop();
} else {
  timer1.Start();
}

The Enabled property tells you if the timer is running or not.