Dynamic menu for .net

 

c# code:   
 protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            this.lbl_Menu.Text = GetMenu("9999","999");
            this.lbl_UserName.Text = "Tim";
            this.lbl_MacIP.Text = Page.Request.UserHostAddress;
        }
    }

    private string GetMenu(string UserID, string TopMenuID)
    {
        System.Data.DataSet ds = GetMenuDataSet(UserID);
        System.Text.StringBuilder sb = new System.Text.StringBuilder();
        sb.Append("
");
        if (ds.Tables.Count != 0 && ds.Tables[0].Rows.Count != 0)
        {
            System.Data.DataView dv = ds.Tables[0].DefaultView;
            dv.RowFilter = "MenuUppID='999'";
            System.Data.DataTable dt = dv.ToTable();
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                System.Data.DataRow dr = dt.Rows[i];
                sb.Append("
" +
                    (dr[1] != null ? dr[1].ToString() : "") + "");

                string subString = getSubMenu(dr[0].ToString(), dv);
                if (subString != "")
                {
                    sb.Append(subString);
                }

            }
        }
        sb.Append("
");
        return sb.ToString();
    }

    private string getSubMenu(string MenuUppID,System.Data.DataView dv)
    {
        System.Text.StringBuilder sb = new System.Text.StringBuilder();
        dv.RowFilter = "MenuUppID='" + MenuUppID + "'";
        System.Data.DataTable dt = dv.ToTable();
        if (dt.Rows.Count != 0)
        {
            sb.Append("
");
        }
        for (int i = 0; i < dt.Rows.Count; i++)
        {
            System.Data.DataRow dr = dt.Rows[i];
            sb.Append("
" +
                (dr[1] != null ? dr[1].ToString() : "") + "");
        }
        if (sb.Length != 0)
        {
            sb.Append("
");
        }
        return sb.ToString();
    }

    private System.Data.DataSet GetMenuDataSet(string userID)
    {
        System.Data.DataSet ds = new System.Data.DataSet();
        System.Data.DataTable dt = new System.Data.DataTable();
        dt.Columns.Add("ID");
        dt.Columns.Add("MenuName");
        dt.Columns.Add("MenuUrl");
        dt.Columns.Add("MenuUppID");
        dt.Columns.Add("MenuSort");

        System.Data.DataRow dr = dt.NewRow();
        
        dr[0] = "0";
        dr[1] = "首页";
        dr[2] = "index.htm";
        dr[3] = "999";
        dr[4] = "1";

        dt.Rows.Add(dr);

        System.Data.DataRow dr1 = dt.NewRow();

        dr1[0] = "1";
        dr1[1] = "信息中心";
        dr1[2] = "a.htm";
        dr1[3] = "999";
        dr1[4] = "1";

        dt.Rows.Add(dr1);

        System.Data.DataRow dr2 = dt.NewRow();

        dr2[0] = "2";
        dr2[1] = "信息查询";
        dr2[2] = "a1.htm";
        dr2[3] = "1";
        dr2[4] = "2";

        dt.Rows.Add(dr2);

        System.Data.DataRow dr3 = dt.NewRow();

        dr3[0] = "3";
        dr3[1] = "信息修改";
        dr3[2] = "a2.htm";
        dr3[3] = "1";
        dr3[4] = "3";

        dt.Rows.Add(dr3);

        System.Data.DataRow dr4 = dt.NewRow();

        dr4[0] = "4";
        dr4[1] = "个人信息";
        dr4[2] = "a3.htm";
        dr4[3] = "999";
        dr4[4] = "4";

        dt.Rows.Add(dr4);

        System.Data.DataRow dr5 = dt.NewRow();

        dr5[0] = "5";
        dr5[1] = "网上";
        dr5[2] = "a3.htm";
        dr5[3] = "999";
        dr5[4] = "5";

        dt.Rows.Add(dr5);

        ds.Tables.Add(dt);
        return ds;
    }

        

            
        

        

            
        
    

    

        
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转载于:https://www.cnblogs.com/Tim_Liu/archive/2010/11/22/1883990.html