c#动态生成菜单

/// <summary>
    /// 主窗体
    /// </summary>
    public partial class Frm_Main : BaseForm
    {
        /// <summary>
        /// 构造函数
        /// </summary>
        /// <param name="mzDoctorUserInfo"></param>
        /// 
        public Frm_Main()
        {
            InitializeComponent();

            SetFormMax(this);

            InitFormStatus(this); 
 19             this.menuStrMain.Renderer = new MyMenuRender();
        }

        /// <summary>
        /// 窗体加载函数
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Frm_Main_Load(object sender, EventArgs e)
        {
            GetMenuString();

            this.Icon = Icon.FromHandle(new Bitmap(imageList1.Images[0]).GetHicon());
        }

        /// <summary>
        /// 获取窗体的菜单
        /// </summary>
        private void GetMenuString()
        {
            string errmsg = "";
            System.Data.DataSet ds = new DataSet();
            int tt = WebService.GetInstance(CommonInfo.LoginInfo.userParameters).Execute("DataServices", "115001001", "1", "<Code>111</Code>", out  errmsg, out ds);
            if (tt == 1)
            {
                InitMenu(ds.Tables[0], menuStrMain, MenuClicked);
            }
        }

        /// <summary>
        /// 菜单单击
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void MenuClicked(object sender, EventArgs e)
        {
            string parameters = string.Empty;
            string winName = string.Empty;
            string id = string.Empty;
            try
            {
                id = ((ToolStripMenuItem)sender).Tag.ToString();

                DataRow[] drs = MenuData.Select("MenuID = '" + id + "'");

                if (drs.Length == 1)
                {
                    winName = drs[0]["Stmp1"].ToString();
                    parameters = drs[0]["Stmp2"].ToString().Trim();
                }


                Type formType = Type.GetType(winName);

                if (formType != null)
                {
                    if (typeof(Form).IsAssignableFrom(formType))
                    {
                        CloseOtherAllFrom();

                        Form f = null;

                        if (parameters == null || parameters == string.Empty)
                        {
                            f = (Form)Activator.CreateInstance(formType);
                        }
                        else
                        {
                            f = (Form)Activator.CreateInstance(formType, new object[1] { parameters });
                        }
                        f.ShowDialog();
                    }
                }
            }
            catch (Exception ee)
            {
                MessageBox.Show(ee.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        /// <summary>
        /// 关闭窗体
        /// </summary>
        public void CloseWindows()
        {
            this.Close();
        }
    }

#region 菜单

        /// <summary>
        /// 关闭其他所有窗口
        /// </summary>
        protected void CloseOtherAllFrom()
        {
            foreach (Form frm in this.MdiChildren)
            {
                frm.Close();
            }
        }

        /// <summary>
        /// 初始化菜单
        /// </summary>
        protected void InitMenu(DataTable dt, MenuStrip menuStrip, EventHandler callback)
        {
            this.MenuData = dt;

            //循环生成父菜单 
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                string id = MenuData.Rows[i]["MenuID"].ToString().Trim();
                string text = MenuData.Rows[i]["MenuName"].ToString().Trim();

                ToolStripMenuItem mi = new ToolStripMenuItem(text);
                mi.Tag = id;

                if (id.Length == 6)
                {
                    if (!ExistDropDownItems(MenuData, id))
                    {
                        mi.Click += callback;
                    }

                    menuStrip.Items.Add(mi);

                    //递归算法生成所有级别的下级子菜单 
                    AddMenuItem(MenuData, MenuData.Rows[i]["MenuID"].ToString(), mi.DropDownItems, callback);
                }
            }
        }

        /// <summary> 
        /// 创建无级树菜单 
        /// </summary> 
        /// <param name="dt">获取菜单的数据源</param> 
        /// <param name="parentID">菜单的父ID</param> 
        /// <param name="parItem">创建菜单的Item</param> 
        private void AddMenuItem(DataTable dt, string parentID, ToolStripItemCollection parItem, EventHandler callback)
        {
            DataRow[] drs = dt.Select("MenuID  like '" + parentID + "%' and MenuID <> '" + parentID + "'");
            if (drs.Length > 0)
            {
                foreach (DataRow dr in drs)
                {
                    ToolStripMenuItem mi = new ToolStripMenuItem();
                    mi.Text = dr["MenuName"].ToString();
                    mi.Tag = dr["MenuID"].ToString();
                    if (!ExistDropDownItems(dt, mi.Tag.ToString()))
                    {
                        mi.Click += new EventHandler(callback);
                    }
                    parItem.Add(mi);
                    AddMenuItem(dt, drs[0].ToString(), mi.DropDownItems, callback);
                }
            }
            else
            {
                return;
            }
        }

        /// <summary>
        /// 指定节点是否存在下级节点
        /// </summary>
        /// <param name="dt">数据集</param>
        /// <param name="parentID">节点编号</param>
        /// <returns>存在true 不存在 false</returns>
        private bool ExistDropDownItems(DataTable dt, string parentID)
        {
            DataRow[] drs = dt.Select("MenuID  like '" + parentID + "%' and MenuID <> '" + parentID + "'");

            if (drs.Length > 0)
            {
                return true;
            }
            return false;
        }

        #endregion