prevent writing all the letters except (the digits and (.))

Question

What is the code to prevent writing all the letters except (the digits and ( .)) Example 456.25

Joginder Banger · Answer

Hi Iamast Iamasat In your question have no defined which application are used. I hope are understand what i say. if you are working on web application you need the javascript or you are using the window application create the key_press event. What you think about this code private void textBox1_KeyPress(object sender KeyPressEventArgs e) { if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) && e.KeyChar != '.') { e.Handled = true; } // only allow one decimal point if (e.KeyChar == '.' && (sender as TextBox).Text.IndexOf('.') > -1) { e.Handled = true; } }

lamasat lamasat · Answer

Thank you very much