C#中怎样在ToolStripMenuItem下再添加子级菜单

待我称王封你为后i 2023-10-08 11:04 4阅读 0赞

## 场景 ##

在右键菜单ContextMenuStrip下添加子菜单选项可以通过

ContextMenuStrip menuStrip
    ToolStripMenuItem mnuChartOption = new ToolStripMenuItem();     //新建菜单项对象
    mnuChartOption.Name = "chart_option";
    mnuChartOption.Text = "图形选项";
    //点击弹出图形选项对话框
    mnuChartOption.Click += delegate(object sender, EventArgs e)
       {
                   
        };
    menuStrip.Items.Add(mnuChartOption);

来实现。但是如果在右键菜单的子菜单选项下再添加子菜单选项，形成二级子菜单。

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## 实现 ##

ToolStripMenuItem 的子级菜单仍然是ToolStripMenuItem ，主要通过DropDownItems属性来构建关联关系。

构建右键二级子菜单示例代码

ToolStripMenuItem mnuDirectPrint = new ToolStripMenuItem("直接打印");
                mnuDirectPrint.Name = "directPrint";
                mnuDirectPrint.Text = "直接打印";
                mnuDirectPrint.Click += delegate(object sender, EventArgs e)
                {
                    control.DoPrint();
                };
    
                ToolStripMenuItem mnuPrintPageSet = new ToolStripMenuItem("打印页面设置");
                mnuPrintPageSet.Name = "printPageSet";
                mnuPrintPageSet.Text = "打印页面设置";
                mnuPrintPageSet.Click += delegate(object sender, EventArgs e)
                {
                    control.DoPageSetup();
                };
    
                ToolStripMenuItem mnuPrint = new ToolStripMenuItem();
                mnuPrint.Name = "mnuPrint";
                mnuPrint.Text = "打印";
                mnuPrint.DropDownItems.Add(mnuDirectPrint);
                mnuPrint.DropDownItems.Add(mnuPrintPageSet);
    
               
                menuStrip.Items.Add(mnuPrint);

### 效果 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

[https_blog.csdn.net_badao_liumang_qizhi]: https://blog.csdn.net/badao_liumang_qizhi
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191224090028743.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70