当用户从 DatePicker 中选择日期时，如何在特定日期启动计时器？

Question

private void DatePicker1_ValueChanged(object sender, EventArgs e) <--???
{
    if (DatePicker.ValueChanged) <--???
}

I'm not sure what code to write at all!

Answer 1

Try the following:

TimeSpan timeSpan = DatePicker.Value.Subtract(DateTime.Now);
Thread.Sleep(timeSpan.TotalMilliseconds);
timer.Start();