hMailServer.Shared.ucText.OnKeyPress C# (CSharp) Метод

        protected override void OnKeyPress(KeyPressEventArgs e)
        {
            if (_numeric)
             {
            if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar))
            {
               e.Handled = true;
            }
             }

             base.OnKeyPress(e);
        }