wpf-menu

<DockPanel>
<Menu DockPanel.Dock="Top">
<MenuItem Header="_Tools">
<MenuItem Header="_Driver" />
<MenuItem Name="menu_programe" Header="_Programe" Click="menu_programe_Click"/>
<MenuItem Header="_Measure" />
<Separator />
<MenuItem Name="menu_exit" Header="_Exit" Click="menu_exit_Click"/>
</MenuItem>
</Menu>
<Grid x:Name="grid_main" Margin="0,5,5,5" />
</DockPanel>

private void menu_programe_Click(object sender, RoutedEventArgs e)
{
grid_main.Children.Clear();
grid_main.Children.Add(new UCProgram());
}

private void menu_exit_Click(object sender, RoutedEventArgs e)
{
Close();
}