求助，导航栏排序问题？
本帖最后由 lincong19782 于 2013-03-30 10:27:53 编辑 各位大侠，请帮忙一下：
前台default.aspx

<%for (int i = 0; i <lists.Count; i++)

            { %> <%=classdic[lists[i]] %> <%} %>

后台cs代码：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Text;
using System.Data.SqlClient;
using System.Collections.Generic;
namespace Maticsoft.Web.Article
{
    public partial class Detail : System.Web.UI.Page
    {
        protected Dictionary<string, string> classdic = new Dictionary<string, string>();//名称字典
        protected List<string> lists = new List<string>();//编号泛型
        protected Dictionary<string, int> orders = new Dictionary<string, int>();//排序号字典
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                if (Request.Params["id"] != null && Request.Params["id"].Trim() != "")
                {
                    GetClassList("135", 0);

                }
                else
                {
                    Response.Write("<script>alert('已经是最后一篇了！');history.back(1);</script>");
                }
            }
        }
        protected void GetClassList(string ParentID, int Layer)
        {

            IDataReader dr = ClassListDAL(ParentID);

            Dictionary<string, string> classdic1 = new Dictionary<string, string>();

            List<string> lists1 = new List<string>();

            while (dr.Read())
            { 
 

                classdic1.Add(dr["ParentID"].ToString().Trim(), dr["Text"].ToString());

                lists1.Add(dr["ParentID"].ToString().Trim());

                orders.Add(dr["ParentID"].ToString().Trim(), int.Parse(dr["OrderID"].ToString()));

            }

            dr.Close();

            for (int i = 0; i <classdic1.Count; i++)
            {

                string stxt = "";

                if (Layer > 0)

                    stxt = "  ";

                for (int j = 1; j < Layer; j++)
                {

                    stxt += "    ";

                }

                classdic.Add(lists1[i], stxt + classdic1[lists1[i]]);

                lists.Add(lists1[i]);

                GetClassList(lists1[i], (Layer + 1));

            }

        }
        protected IDataReader ClassListDAL(string ParentID)
        {

            SqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["ConnectionString"]);//数据库连接为我本地连接

            SqlCommand cmd = new SqlCommand();

            cmd.Connection = conn;

            cmd.CommandType = CommandType.Text;

            cmd.CommandText = "select * from [S_Tree] where NodeID=@parentID order by OrderID asc";

            SqlParameter param = new SqlParameter("@parentID", ParentID);

            cmd.Parameters.Add(param);

            conn.Open();

            return cmd.ExecuteReader(CommandBehavior.CloseConnection); 
 

        }

现在前台显示的是：a >b > c
我想让它显示：c >b >a

请教要如何改动，谢谢！ 导航?排序
[解决办法]

改成
<%for (int i = lists.Count-1; i>=0; i--)

{ %> <%=classdic[lists[i]] %> <%} %>