C# DateTimePicker stuck in loop

Question

I have a datetimepicker in C#. When I click on it, it expands to show a monthly calendar, when I click the left arrow to go back a month, it changes the value and calls my even

Answer 1

event procedure ValueChanged : set parameter in sender.tag enableTimer and execute parameter using sender.tag

example:

private void DateTimePicker_ValueChanged(object sender, EventArgs e)
    {
        DateTimePicker ThisSender = (DateTimePicker)sender;
        Timer.Tag = ThisSender.Name.ToString() + "=" + ThisSender.Value;
        Timer.Enabled = true;
    }