Today we will see how to make a textbox that only accepts numbers or only characters in C#.Use this Validation in TextBox KeyPress Event.
After applying this below code .you can type only words in the Text box. you can't type Numbers and Other symbols in that Text box
if(!char.IsControl(e.KeyChar) && !char.IsLetter(e.KeyChar))
{
e.Handled = true;
}
After applying this below code .you can type only Numbers in the Textbox. you can't type Words and Other symbols in that textbox if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar))
{
e.Handled = true;
}
After applying this below code .you can type Numbers and Words in the Textbox. you can't type Other symbols in that textbox.
// allow digit + char + white space
if (!char.IsControl(e.KeyChar) && !char.IsLetterOrDigit(e.KeyChar) && !char.IsWhiteSpace(e.KeyChar))
{
e.Handled = true;
}
