Adjusts the size of the owner System.Windows.Forms.ToolStrip to accommodate the System.Windows.Forms.ToolStripDropDown if the owner System.Windows.Forms.ToolStrip is currently displayed, or clears and resets active System.Windows.Forms.ToolStripDropDown child controls of the System.Windows.Forms.ToolStrip if the System.Windows.Forms.ToolStrip is not currently displayed.
- visible
- true if the owner System.Windows.Forms.ToolStrip is currently displayed; otherwise, false.