TreeView可以这样绑定多级数据

记得刚开始的时候为了绑定多级数据用了好几个foreach来实现，再看代码的时候不易于理解后来经过修改改成这个样子了

void BindTreeView()
        {
            DataSet ds = fc.GetParent();
            DataView dv = new DataView(ds.Tables[0]);

            foreach (DataRowView Row in dv)//绑定主功能模块
            {
                TreeNode tn = new TreeNode();
                tn.Text = Row["ParentName"].ToString();
                tn.Value = Row["ParentID"].ToString();
                tn.Expanded = false;
                TreeView1.Nodes.Add(tn);
                DataSet dschild = fc.GetChildByParentID(tn.Value);
                DataView dvchild = new DataView(dschild.Tables[0]);

                BindNode(dvchild, tn, "Child");
            }
        }

void BindNode(DataView dv, TreeNode node, string ModelName)
        {
            string TextField = "";
            string ValueField = "";
            string UrlField = "";

            if (ModelName == "Child")
            {
                TextField = "ChildName";
                ValueField = "ChildID";
            }
            if (ModelName == "Menu")
            {
                TextField = "ModeName";
                ValueField = "ModeCode";
                UrlField = "Url";
            }

            foreach (DataRowView row in dv)
            {
                TreeNode tnchild = new TreeNode();
                tnchild.Text = row[TextField].ToString();
                tnchild.Value = row[ValueField].ToString();
                if (UrlField != "")
                {
                    tnchild.NavigateUrl = row[UrlField].ToString();
                }
                tnchild.Expanded = false;
                node.ChildNodes.Add(tnchild);
                DataSet dsmenu = fc.GetMenuBYChildID(tnchild.Value);
                DataView dvmenu = new DataView(dsmenu.Tables[0]);

                BindNode(dvmenu, tnchild, "Menu");
            }
        }

大家看看还能继续抽方法出来吗！