private void action_view_navigation_Click(object sender, EventArgs e) { if (w_navigation.IsHidden) { if (logined == true) { w_navigation.Show(central, DockState.DockLeft); } } if (w_navigation.DockState == DockState.DockLeftAutoHide) { w_navigation.Show(central, DockState.DockLeft); } else { w_navigation.Activate(); } }