private void DropDownItem_DropDownOpened(object sender, EventArgs e)
 {
     ToolStripDropDownItem item = sender as ToolStripDropDownItem;
     if (item != null)
     {
         this.ResetGlyphs(item);
     }
     Control dropDown = item.DropDown;
     if (dropDown != null)
     {
         ControlDesigner designer = this.designerHost.GetDesigner(this.designerHost.RootComponent) as ControlDesigner;
         if (designer != null)
         {
             this.rootControlGlyph = new ToolStripDropDownGlyph(dropDown.Bounds, new DropDownBehavior(designer, this));
         }
         if (this.toolStripAdornerWindowService != null)
         {
             this.toolStripAdornerWindowService.DropDownAdorner.Glyphs.Add(this.rootControlGlyph);
         }
     }
 }
 private void DropDownResize(object sender, EventArgs e)
 {
     ToolStripDropDown down = sender as ToolStripDropDown;
     if (!base.dummyItemAdded)
     {
         if ((((down != null) && down.Visible) && (this.toolStripAdornerWindowService != null)) && ((down.Width < this.dropDownSizeToInvalidate.Width) || (down.Size.Height < this.dropDownSizeToInvalidate.Height)))
         {
             using (Region region = new Region(this.dropDownSizeToInvalidate))
             {
                 region.Exclude(down.Bounds);
                 this.toolStripAdornerWindowService.Invalidate(region);
                 BehaviorService service = (BehaviorService) this.GetService(typeof(BehaviorService));
                 if (service != null)
                 {
                     service.Invalidate(region);
                 }
             }
         }
         if (this.toolStripAdornerWindowService != null)
         {
             if ((this.rootControlGlyph != null) && this.toolStripAdornerWindowService.DropDownAdorner.Glyphs.Contains(this.rootControlGlyph))
             {
                 this.toolStripAdornerWindowService.DropDownAdorner.Glyphs.Remove(this.rootControlGlyph);
             }
             ControlDesigner designer = this.designerHost.GetDesigner(this.designerHost.RootComponent) as ControlDesigner;
             if (designer != null)
             {
                 this.rootControlGlyph = new ToolStripDropDownGlyph(down.Bounds, new DropDownBehavior(designer, this));
             }
             this.toolStripAdornerWindowService.DropDownAdorner.Glyphs.Add(this.rootControlGlyph);
         }
     }
     this.dropDownSizeToInvalidate = down.Bounds;
 }