C# NavBarControl根据鼠标点击位置获取 NavBarGroup 对象

private void navBarControl1_Click(object sender, EventArgs e)
{
  //根据鼠标点击位置获取 NavBarGroup 对象
   if (e is System.Windows.Forms.MouseEventArgs)
  {
    System.Windows.Forms.MouseEventArgs ar = e as System.Windows.Forms.MouseEventArgs;
    
    NavBarHitInfo info = navBarControl1.CalcHitInfo(ar.Location);
    
    if (info is NavBarNavigationPaneHitInfo)
    {
      NavBarNavigationPaneHitInfo click = info as NavBarNavigationPaneHitInfo;
      
      //NavBarGroup 对象
       if (click.Group != null && click.InGroup && click.InLink == false)
      {
        if (navBarControl1.ActiveGroup != click.Group)
        navBarControl1.ActiveGroup = click.Group;
        else
        //调用ActiveGroupChanged事件
         navBarControl1_ActiveGroupChanged(navBarControl1, new NavBarGroupEventArgs(click.Group));
      }
    }
  }
}