完成对TabItem加载自定义的右击菜单：

最新推荐文章于 2024-08-28 09:06:51 发布

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最新推荐文章于 2024-08-28 09:06:51 发布

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分类专栏： silverlight

本文链接：https://blog.youkuaiyun.com/u012174426/article/details/41546961

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这篇博客介绍了如何在WPF中为TabItem添加自定义的右击菜单，包括菜单项的创建、事件处理以及点击事件的响应，实现如刷新、关闭单个标签页和关闭所有标签页的功能。

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完成对TabItem加载自定义的右击菜单：

Popup rootPopup = new Popup();//声明一个Popup对象

for (int i = 0; i < LayoutRoot.Children.Count; i++)
            {
                FrameworkElement fe = LayoutRoot.Children[i] as FrameworkElement;
                //fe.MouseLeftButtonDown += new MouseButtonEventHandler(chuangjianduochuangkou_MouseLeftButtonDown);
                fe.GotFocus += new RoutedEventHandler(fe_GotFocus);
            }
            LayoutRoot.MouseLeftButtonDown += new MouseButtonEventHandler(LayoutRoot_MouseLeftButtonDown);

void LayoutRoot_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            rootPopup.IsOpen = false;//点击之后隐藏Popup
        }

        void fe_GotFocus(object sender, RoutedEventArgs e)
        {
            rootPopup.IsOpen = false;//点击之后隐藏Popup
        }

tab.MouseRightButtonDown += new MouseButtonEventHandler(tab_MouseRightButtonDown);
tab.MouseRightButtonUp += new MouseButtonEventHandler(tab_MouseRightButtonUp);

/// <summary>
        /// 鼠标右键释放事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void tab_MouseRightButtonUp(object sender, MouseButtonEventArgs e)
        {
            TabItem a = sender as TabItem;
            string aa = a.Name;
            rootPopup.IsOpen = true;//显示Popup
            rootPopup.Width = App.Current.Host.Content.ActualWidth;//设置Popup的宽度即当前区域的宽度
            rootPopup.Height = App.Current.Host.Content.ActualHeight;//设置Popup的高度即当前区域的宽度
            Grid rootGrid = new Grid();
            ListBox listBox = new ListBox();

            //声明TextBlock对象即自定义菜单的项
            //TextBlock txt = new TextBlock()
            //{
            //    Text = "刷新本标签",
            //    Tag = a.Name
            //};
            //txt.MouseLeftButtonUp += new MouseButtonEventHandler(txt_MouseLeftButtonUp); //注册TextBlock的鼠标点击事件
            //listBox.Items.Add(txt);

            TextBlock txt2 = new TextBlock()
            {
                Text = "关闭本标签",
                Tag = a.Name
            };
            txt2.MouseLeftButtonUp += new MouseButtonEventHandler(txt2_MouseLeftButtonUp); //注册TextBlock的鼠标点击事件
            listBox.Items.Add(txt2);

            TextBlock txt3 = new TextBlock()
            {
                Text = "关闭全部标签",
                Tag = a.Name
            };
            txt3.MouseLeftButtonUp += new MouseButtonEventHandler(txt3_MouseLeftButtonUp); //注册TextBlock的鼠标点击事件
            listBox.Items.Add(txt3);

rootGrid.Children.Add(listBox);

            Point point = e.GetPosition(LayoutRoot);//获得当前鼠标点击的坐标
            rootPopup.Child = rootGrid;//设置Popup的承载的美容为rootGrid
            rootPopup.Margin = new Thickness(point.X, point.Y, 0, 0);//设置Popup的显示的位置
        }
        /// <summary>
        /// 自定义菜单的点击时间
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void txt_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)//刷新
        {
            TextBlock t = sender as TextBlock;
            rootPopup.IsOpen = false;//点击之后隐藏Popup
            TabItem item = this.tabControl1.FindName(t.Tag.ToString()) as TabItem;

        }
        void txt2_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)//关闭本标签
        {
            TextBlock t = sender as TextBlock;

rootPopup.IsOpen = false;//点击之后隐藏Popup

            TabItem item = this.tabControl1.FindName(t.Tag.ToString()) as TabItem;
            tabControl1.Items.Remove(item);
            listBox1.Items.Remove(item.Name);
            TabCount--;
        }
        void txt3_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)//关闭所有标签
        {
            TextBlock t = sender as TextBlock;
            rootPopup.IsOpen = false;//点击之后隐藏Popup
            for (int i = 0; i < TabCount; i++)
            {
                TabItem item = this.tabControl1.FindName("tab" + i) as TabItem;
                tabControl1.Items.Remove(item);
                listBox1.Items.Remove(item.Name);
            }
            TabCount = 0;
            //txtStatus.Text = "你点击了:" + (sender as TextBlock).Text;//显示点击的内容
        }
        /// <summary>
        /// 鼠标右键点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        void tab_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            e.Handled = true;//屏蔽系统右键菜单
        }