/// <summary>
        /// 设置所有功能模块信息
        /// </summary>
        private void GetAllModuleInfo()
        {
            this.tvModules.Nodes.Clear();

            DataSet ds = new ModelOperation.ManageModules().GetAllListModules();


            TreeNode parent = null;
            foreach (DataRow row in ds.Tables[0].Rows)
            {
                if (row["parentid"].ToString() == "NULL")
                {
                    parent = new TreeNode();
                    parent.Tag = row["MODULEID"].ToString();
                    parent.Text = row["MODULENAME"].ToString();
                    FillTree(parent, ds.Tables[0]);
                    tvModules.Nodes.Add(parent);
                }
            }


            string roleId = "";
            if (tvRoles.SelectedNode != null)
            {
                roleId = tvRoles.SelectedNode.Tag.ToString();
            }
            string strWhere = " roleId= '" + roleId + "'";
            DataSet moduleRoleDataSet = new ModelOperation.ModuleRolesOperation().GetRolesByWhere(strWhere);

            if (moduleRoleDataSet != null)
            {
                SetModulesChecked(tvModules.Nodes, moduleRoleDataSet);
            }
        }


   public void SetModulesChecked(TreeNodeCollection nodes, DataSet ds)
        {


            foreach (TreeNode item in nodes)
            {
                item.Checked = false;
                for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                {
                    if (item.Tag.ToString() == ds.Tables[0].Rows[i]["moduleid"].ToString())
                    {
                        item.Checked = true;
                    }
                }
                SetModulesChecked(item.Nodes, ds);
            }
        }