windows form textbox only allow numbers
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
e.Handled = !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar);
}windows form textbox only allow numbers
private void textBox1_KeyPress(object sender, KeyPressEventArgs e)
{
e.Handled = !char.IsDigit(e.KeyChar) && !char.IsControl(e.KeyChar);
}JavaScript allow only numbers in input alert
this.form = fb.group({
number: ['', [Validators.required, Validators.pattern("^[0-9]*$")]]
})Copyright © 2021 Codeinu
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