This is my code:
private void txtAdd_KeyPress(object sender, KeyPressEventArgs e)
{
if (!(char.IsLetter(e.KeyChar)) && !(char.IsNumber(e.KeyChar)) && !(char.IsWhiteSpace(e.KeyChar)))
{
e.Handled = true;
}
}
It allows me to enter letters, numbers and spaces but it doesn't allow me to do backspace. Please help me.
I like to use !
Char.IsControl(e.KeyChar) so that all the "control" characters like the backspace key and clipboard keyboard shortcuts are exempted.
If you just want to check for backspace, you can probably get away with:
if (e.KeyChar == (char)8 && ...)