private void SetOwnerItem(Control control) { if (control == null) { return; } if (control is CustomToolStrip) { CustomToolStrip toolStrip = control as CustomToolStrip; ownerToolStrip = toolStrip; ownerToolStrip.childToolStrip = this; OwnerItem = toolStrip.Items[0]; return; } if (control.Parent != null) { SetOwnerItem(control.Parent); } }