c# - Convert Difference between 2 times into Milliseconds?

Question

I have two masked TextBox controls and was wondering how I'd go about getting the time in each one and then converting the difference into milliseconds. Like, say in tb1 I write "12:01" and in tb2 I write "12:02", and then click a button. Once the button's clicked it starts a timer and at 12:02 a messagebox will be displayed. I know how to do all of it except for the time conversion part.

How can it be achieved?

Answer 1

DateTime dt1 = DateTime.Parse(maskedTextBox1.Text);
DateTime dt2 = DateTime.Parse(maskedTextBox2.Text);
TimeSpan span = dt2 - dt1;
int ms = (int)span.TotalMilliseconds;