asp.net 三级菜单的后台代码

选择字号： 超大 标准 发布时间：2009-12-21 17:1:45 | 作者：admin | 0个评论 | 人浏览

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

using School_Entity;
using School_BLL.clsPublic;
namespace School_Web.admin
{
    public partial class skyleft1 : BaiscWeb
    {
        public string sImagePath = "images/ico/2.gif";
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsCallback)
            {

                string sql = "select * From SkyMenu where isDel='N' order by ShowID Asc,id desc";
                School_BLL.SkyTools res = new School_BLL.SkyTools();
                DataTable dt = res.SkyDataCreateDT(sql);
                SetTree(dt);
            }
        }

        protected void SetTree(DataTable dt)
        {
            this.Literal1.Text = @"<ul id=""menu"">" + GetMulList(dt, "0") + "</ul>";
        }
        /// <summary>
        /// 加载1级菜单
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="spID"></param>
        /// <returns></returns>
        protected string GetMulList(DataTable dt, string spID)
        {
            string sReturn = "";
            string sTmp = "";
            string sR = @"  <li class=""{0}""><a href=""javascript:c(m{3});"" id=""m{1}""><span><img src=""{4}"" align=""absMiddle""/>{2}</span></a></li>";
            DataRow[] dr = dt.Select("parentid=" + spID);
            string sIMG = "";
            for (int i = 0; i < dr.Length; i++)
            {
                sIMG = this.SkyTool_DBNull(dr[i]["miOpen"]);
                if (sIMG == ""){sIMG = sImagePath;}
                sTmp = string.Format(sR, "L1", dr[i]["id"].ToString(), dr[i]["MName"].ToString(), dr[i]["id"].ToString(), sIMG) + "\n";
                sReturn += sTmp;
                sReturn += GetMulList2(dt, dr[i]["id"].ToString());
            }
            return sReturn;
        }

        /// <summary>
        /// 加载2级菜单
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="spID"></param>
        /// <returns></returns>
        protected string GetMulList2(DataTable dt, string spID)
        {
            string sW = @"      <ul id=""m{0}d"" style=""display:none;"" class=""U1"">";
            sW = string.Format(sW, spID);
            string sReturn = "";
            string sTmp = "";
            string sR = @"          <li class=""{0}""><a href=""javascript:c(f{3});"" id=""f{1}""><span><img src=""{4}"" align=""absMiddle""/>{2}</span></a></li>" + "\n";
            string sR1 = @"          <li class=""{0}""><a href=""{3}"" id=""f{1}""><span><img src=""{4}"" align=""absMiddle""/>{2}</span></a></li>" + "\n";
            DataRow[] dr = dt.Select("parentid=" + spID);
            DataRow[] dr1;
            string sIMG = "";
            if (dr.Length > 0)
            {
                for (int i = 0; i < dr.Length; i++)
                {
                    sIMG = this.SkyTool_DBNull(dr[i]["miOpen"]);
                    if (sIMG == "") { sIMG = sImagePath; }
                    dr1 = dt.Select("parentid=" + dr[i]["id"].ToString());
                    if (dr1.Length > 0)
                    {
                        sTmp = string.Format(sR, "L21", dr[i]["id"].ToString(), dr[i]["MName"].ToString(), dr[i]["id"].ToString(), sIMG) + "\n";
                    }
                    else
                    {
                        sTmp = string.Format(sR1, "L22", dr[i]["id"].ToString(), dr[i]["MName"].ToString(), this.SkyTool_DBNull(dr[i]["murl"]), sIMG) + "\n";
                    }
                    sReturn += sTmp;
                    sReturn += GetMulList3(dt, dr[i]["id"].ToString());
                }
                return sW + sReturn + "</ul>";
            }
            else
            {
                return sReturn;
            }

        }

        /// <summary>
        /// 加载3级菜单
        /// </summary>
        /// <param name="dt"></param>
        /// <param name="spID"></param>
        /// <returns></returns>
        protected string GetMulList3(DataTable dt, string spID)
        {
            string sW = @"              <ul id=""f{0}d"" style=""display:none;"">" + "\n";
            sW = string.Format(sW, spID);
            string sReturn = "";
            string sTmp = "";
            string sR = @"                  <li class=""{0}""><a href=""{4}"" id=""f{1}""><span><img src=""{3}"" align=""absMiddle""/>{2}</span></a></li>" + "\n";
            DataRow[] dr = dt.Select("parentid=" + spID);
            DataRow[] dr1;
            if (dr.Length > 0)
            {
                string sIMG = "";
                for (int i = 0; i < dr.Length; i++)
                {
                    sIMG = this.SkyTool_DBNull(dr[i]["miOpen"]);
                    if (sIMG == "") { sIMG = sImagePath; }
                    sTmp = string.Format(sR, "L3", dr[i]["id"].ToString(), dr[i]["MName"].ToString(), sIMG,this.SkyTool_DBNull(dr[i]["murl"])) + "\n";
                    sReturn += sTmp;
                }
                return sW + sReturn + "</ul>";
            }
            else
            {
                return sReturn;
            }

        }
    }
}
 

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