private void ContextMenu_Click(object sender, EventArgs e) { MenuItem mi = (MenuItem)sender; if (mi.Text == "Exit edit mode") { return; } else if (mi.Text == "-") { return; } else { Sprite sp = (Sprite)m_aSpritesInContextMenu[mi.Index]; m_sceneGraphViewer.SelectedSprite = sp; m_sceneGraphViewer.MarkSprite(sp); } }