Question

I need to replace the standard Overflow function in a ToolStrip to a ‘More…’ button which would then pop up a menu with the overflowed items. Does anyone have any ideas about how to accomplish this?

Answer 1

I wrote something very similar to this awhile ago. The code I used is pasted below, and you are free to modify it to suit your needs.

The ToolStripCustomiseMenuItem is basically your ‘More’ button that populates a DropDown Context Menu when clicked. Hope this helps you, at the very least this should be a good starting point…

  public class ToolStripCustomiseMenuItem : ToolStripDropDownButton {         public ToolStripCustomiseMenuItem()             : base('Add Remove Buttons') {             this.Overflow = ToolStripItemOverflow.Always;             DropDown = CreateCheckImageContextMenuStrip();         }      ContextMenuStrip checkImageContextMenuStrip = new ContextMenuStrip();     internal ContextMenuStrip CreateCheckImageContextMenuStrip() {         ContextMenuStrip checkImageContextMenuStrip = new ContextMenuStrip();         checkImageContextMenuStrip.ShowCheckMargin = true;         checkImageContextMenuStrip.ShowImageMargin = true;         checkImageContextMenuStrip.Closing += new ToolStripDropDownClosingEventHandler(checkImageContextMenuStrip_Closing);         checkImageContextMenuStrip.Opening += new CancelEventHandler(checkImageContextMenuStrip_Opening);         DropDownOpening += new EventHandler(ToolStripAddRemoveMenuItem_DropDownOpening);         return checkImageContextMenuStrip;     }      void checkImageContextMenuStrip_Opening(object sender, CancelEventArgs e) {      }      void ToolStripAddRemoveMenuItem_DropDownOpening(object sender, EventArgs e) {         DropDownItems.Clear();         if (this.Owner == null) return;         foreach (ToolStripItem ti in Owner.Items) {             if (ti is ToolStripSeparator) continue;             if (ti == this) continue;             MyToolStripCheckedMenuItem itm = new MyToolStripCheckedMenuItem(ti);             itm.Checked = ti.Visible;             DropDownItems.Add(itm);         }     }      void checkImageContextMenuStrip_Closing(object sender, ToolStripDropDownClosingEventArgs e) {         if (e.CloseReason == ToolStripDropDownCloseReason.ItemClicked) {             e.Cancel = true;         }     } }  internal class MyToolStripCheckedMenuItem : ToolStripMenuItem {     ToolStripItem tsi;     public MyToolStripCheckedMenuItem(ToolStripItem tsi)         : base(tsi.Text) {         this.tsi = tsi;         this.Image = tsi.Image;         this.CheckOnClick = true;         this.CheckState = CheckState.Checked;         CheckedChanged += new EventHandler(MyToolStripCheckedMenuItem_CheckedChanged);     }      void MyToolStripCheckedMenuItem_CheckedChanged(object sender, EventArgs e) {         tsi.Visible = this.Checked;     }  }