Only allow two digits after decimal in textbox?

Question

I have a textbox where the user enters a number, but how can i make it so that if they type the \'.\' after it it only allows 2 decimal places?

private void          


        

Answer 1

Just add:

if (Regex.IsMatch(textBox1.Text, @"\.\d\d")) {
   e.Handled = true;
}

to the end of your function