RichTextBox实现鼠标右键(剪切，复制，粘贴)功能

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        private static void InitRichTextBoxContextMenu(RichTextBox textBox)

        {

            //创建剪切子菜单

            var cutMenuItem = new System.Windows.Forms.MenuItem("剪切");

            cutMenuItem.Click += (sender, eventArgs) => textBox.Cut();

            //创建复制子菜单

            var copyMenuItem = new System.Windows.Forms.MenuItem("复制");

            copyMenuItem.Click += (sender, eventArgs) => textBox.Copy();

            //创建粘贴子菜单

            var pasteMenuItem = new System.Windows.Forms.MenuItem("粘贴");

            pasteMenuItem.Click += (sender, eventArgs) => textBox.Paste();

            //创建右键菜单并将子菜单假日到右键菜单中

            var contextMenu = new ContextMenu();

            contextMenu.MenuItems.Add(cutMenuItem);

            contextMenu.MenuItems.Add(copyMenuItem);

            contextMenu.MenuItems.Add(pasteMenuItem);

            textBox.ContextMenu = contextMenu;

        }

RichTextBox实现鼠标右键(剪切，复制，粘贴)功能

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原文地址：http://www.cnblogs.com/zhanglei93/p/4762037.html