private void tbNomSala_TextChanged(object sender, EventArgs e)
{
Validacion v = new Validacion();
tbNomSala.Text = v.validar(tbNomSala.Text);
tbNomSala.Select(tbNomSala.Text.Length, 0);
tbNomSala.CharacterCasing = CharacterCasing.Upper;
string txtAnt = tbNomSala.Text;
if (tbNomSala.Text.Length > 1) {
tbNomSala.Text = tbNomSala.Text.Substring(0, 1);
}
}
public void TextBox_KeyPress(object sender, KeyPressEventArgs e)
{
Validacion v = new Validacion();
if (v.validar(e))
e.Handled = true;
else
e.Handled = false;
}