在datagridview 实现右键工具菜单ContextMenuStrip，处理列显示等功能

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Common.Components
{
    public partial class DataGridViewContextMenuStrip : ContextMenuStrip
    {

        private void View_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            this.ShowMenu(sender, e);
        }

        public event Action<SizeGroup, Control> SizeGroupChanged;
        public DataGridViewContextMenuStrip()
        {
            InitializeComponent();
            List<ToolStripItem> stripItems = new Li