private void Button_Click(object sender, RoutedEventArgs e)
{
UsuarioTextBox.Text = "Mario";
ContrasenaTextBox.Text = "******";
VentanaCliente ventana = new VentanaCliente();
ventana.Owner = this;
ventana.ShowDialog();
}
private void Button_Click(object sender, RoutedEventArgs e)
{
VentanaCliente ventana = new VentanaCliente();
ventana.Show();
}