private void TextBox1_KeyPress(object sender, KeyPressEventArgs e)
{
if (char.IsLetter(e.KeyChar) && txtBoxBuscar.Text != string.Empty || char.IsDigit(e.KeyChar) && txtBoxBuscar.Text != string.Empty)
{
dgvHab.DataSource = habitacion.Search(txtBoxBuscar.Text);
}
else
{
cargar();
}
}