C# ToolStripItem.Select方法代碼示例

 internal virtual void ChangeSelection(ToolStripItem nextItem)
 {
     if (nextItem != null)
     {
         ToolStripControlHost host = nextItem as ToolStripControlHost;
         if (base.ContainsFocus && !this.Focused)
         {
             this.FocusInternal();
             if (host == null)
             {
                 this.KeyboardActive = true;
             }
         }
         if (host != null)
         {
             if (this.hwndThatLostFocus == IntPtr.Zero)
             {
                 this.SnapFocus(System.Windows.Forms.UnsafeNativeMethods.GetFocus());
             }
             host.Control.Select();
             host.Control.FocusInternal();
         }
         nextItem.Select();
         ToolStripMenuItem item = nextItem as ToolStripMenuItem;
         if ((item != null) && !this.IsDropDown)
         {
             item.HandleAutoExpansion();
         }
     }
 }

		internal void ChangeSelection (ToolStripItem nextItem)
		{
			if (Application.KeyboardCapture != this)
				ToolStripManager.SetActiveToolStrip (this, ToolStripManager.ActivatedByKeyboard);
				
			foreach (ToolStripItem tsi in this.Items)
				if (tsi != nextItem)
					tsi.Dismiss (ToolStripDropDownCloseReason.Keyboard);

			ToolStripItem current = GetCurrentlySelectedItem ();

			if (current != null && !(current is ToolStripControlHost))
				this.FocusInternal (true);

			if (nextItem is ToolStripControlHost)
				(nextItem as ToolStripControlHost).Focus ();

			nextItem.Select ();
			
			if (nextItem.Parent is MenuStrip && (nextItem.Parent as MenuStrip).MenuDroppedDown)
				(nextItem as ToolStripMenuItem).HandleAutoExpansion ();
		}

 internal virtual void ProcessDuplicateMnemonic(ToolStripItem item, char charCode)
 {
     if (this.CanProcessMnemonic() && (item != null))
     {
         this.SetFocusUnsafe();
         item.Select();
     }
 }

        /// <summary>
        /// Assign ExpressionMemberContainer to each of Context Menu Strip's items that are child to specified item. 
        /// Item with value equal to current also gets selected.
        /// Called from AssignContainerToContextMenuStrip and recursively calls itself.
        /// </summary>
        /// <param name="item">Current item.</param>
        /// <param name="container">Container to be asigned.</param>
        /// <param name="currentValue">Item with this value will be selected.</param>
        private static void AssignContainerToContextMenuStrip_RecursivelyAssign(ToolStripItem item, ExpressionMemberContainer container, string currentValue)
        {
            if (!(item is ToolStripMenuItem))
                return;

            bool itemSelected = false;
            foreach (ToolStripItem innerItem in ((ToolStripMenuItem)item).DropDownItems)
            {
                AssignContainerToContextMenuStrip_RecursivelyAssign(innerItem, container, currentValue);
                itemSelected = itemSelected || item.Selected;
            }

            item.Tag = container;
            if (container.Member.ValueDescription.AreEqual(container.Member.ValueToXml(item.Text), currentValue))
                item.Select();
        }