Allow 2 decimal points / dots in textbox using c#

Question

I am developing a windows application using c#. The user enters a website name which should allow only 2 dots for eg www.google.com I have written but that is accepting only 1 dot. The code I have written is :- if ((e.KeyChar == '.' ) && ((sender as TextBox).Text.IndexOf( '.' ) > -1)) { e.Handled = true ; } Thanks in Advance ...!!!

Amit Singh · Answer

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

Ankush · Answer

It accepts only 1 dot.

Amit Kumar · Answer

Hi Dear private void txtPrice_KeyPress(object sender KeyPressEventArgs e) { // To disallow typing in the beginning writing if (txtPrice.Text.Length == 0) { if (e.KeyChar == '.') { e.Handled = true; } } if (!char.IsDigit(e.KeyChar) && e.KeyChar != 8 && e.KeyChar != 46) { e.Handled = true; } if (e.KeyChar == '.' && txtPrice.Text.IndexOf('.') > -1) { e.Handled = true; } } use counter variable when it is 2 then go to out of this blog

Kunal Patel · Answer

You can do this stuff using Regex. Please visit below link. http://stackoverflow.com/questions/9967558/only-allow-two-digits-after-decimal-in-textbox