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本文實例講述了Asp.Net實現(xiàn)無限分類生成表格的方法。分享給大家供大家參考，具體如下：

數(shù)據結構 monitor_group

monitor_grp_id      monitor_grp_name     parent_id       level               childCount       orderby

[int,自動遞增]           [nvarchar,not null]      [int,not null]  [int,not null]   [int,not null]     [int ,null]

      1       數(shù)據庫服務器          0                   1                 2

      2       應用服務器            0                   1                 2

      3       系統(tǒng)服務器            0                   1                  0 

      4       WEB服務器             1                   2                  0 

      5       郵件服務器            1                   2                  0 

      6       代理服務器            2                   2                  0 

      7       Ftp服務器             2                   2                  0

\App_code\data.cs

using System;

using System.Data;

using MySql.Data.MySqlClient;

using System.Configuration;

using System.Linq;

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 System.Xml.Linq;

/// <summary>

///common 的摘要說明

/// </summary>

/// 

namespace yihan

{

  namespace Data

  {

    public class myDataBind

    {

      public myDataBind()

      {

        //

        //TODO: 在此處添加構造函數(shù)邏輯

        //

      }

      public static string GetTree_monitor_grp_id(DataTable dt, int parent_id, ref string returnString)

      {

        //綁定目錄樹

        //dt:DataTable對象;parent_id:父ID;returnString:輸出引用變量;

        DataRow[] dr = dt.Select("parent_id=" + parent_id);

        int currentLenght = 0;     //當前次數(shù)

        foreach (DataRow row in dr)

        {

          string nodeImg = "";    //節(jié)點圖片

          string treeLineImg = "";  //樹線

          currentLenght += 1;

          if (Convert.ToInt32(row["childCount"]) > 0)

          {nodeImg = "<img src='images/treeExpand.gif' align='absmiddle'>";}

          else

          {nodeImg = "<img src='images/treeNode.gif' align='absmiddle'>";}

          for (var i = 1; i <= Convert.ToInt32(row["level"]); i++)

          {

            //計算treeLineImg

            if (i == Convert.ToInt32(row["level"]))

            {

              if (currentLenght == dr.Length)   //判斷當前次數(shù)是否與本次dr總數(shù)量相等

              { treeLineImg += "└ "; }

              else

              { treeLineImg += "├ "; }

            }

            else

            {

              treeLineImg += "│ ";

            }

          }

          returnString += "<tr>\n";

          returnString += "<td align='left'>" + treeLineImg + nodeImg + " " + row["monitor_grp_name"] + "</td>\n";

          returnString += "<td align='center'>" + row["level"] + "</td>\n";

          returnString += "<td align='center'>" + row["childCount"] + "</td>\n";

          returnString += "<td align='center'>";

          returnString += "<a href='class_add.aspx?monitor_grp_id=" + row["monitor_grp_id"] + "'>添加子類</a>  ";

          returnString += "<a href='class_modi.aspx?monitor_grp_id=" + row["monitor_grp_id"] + "'>修改</a>  ";

          returnString += "<a href='class_del.aspx?monitor_grp_id=" + row["monitor_grp_id"] + "' onclick=\"javascript:{if(!confirm('確刪要刪除該類及其子類嗎?'))return false;}\">刪除</a>  ";

          returnString += "</td>\n";

          returnString += "</tr>\n";

          GetTree_monitor_grp_id(dt, Convert.ToInt32(row["monitor_grp_id"]), ref returnString);

        }

        return returnString;

      }//GetCatalogTree End

     }//myDataBind End

   }

}

class_list.aspx.cs

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

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 System.Xml.Linq;

using yihan.Data;

public partial class monitor_monitor_group_class_list : System.Web.UI.Page

{

  protected void Page_Load(object sender, EventArgs e)

  {

    if (!IsPostBack)

    {

      DataTable dt = new DataTable();

      string resultString = "";

      string sql = "select * from monitor_group order by orderby desc,monitor_grp_id";

      DbConn conn = new DbConn();

      dt = conn.DataTable(sql);

      Literal1.Text = myDataBind.GetTree_monitor_grp_id(dt, 0, ref resultString); //調用

      dt.Dispose();

      conn.Close();

    }

  }

}

class_list.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="class_list.aspx.cs" Inherits="monitor_monitor_group_class_list" %>

<body> 

  <form id="form1" runat="server">

  <table class="conBox" width="100%" border="0" cellpadding="0" cellspacing="1" bgcolor="#66AADD">

   <tr align="center" bgcolor="#999999">

    <th width="36%" bgcolor="#BAD8EF">監(jiān)視器組名稱</th>

    <th width="9%" bgcolor="#BAD8EF">級別</th>

    <th width="15%" bgcolor="#BAD8EF">子節(jié)點總數(shù)</th>

    <th width="29%" bgcolor="#BAD8EF">操作</th>

   </tr>

   <tr>

    <td colspan="5" style="padding-left:6px;background:#DBDBDB;">監(jiān)視器組</td>

   </tr>

    <asp:Literal ID="Literal1" runat="server"></asp:Literal>

  </table>

  </form>

</body>

手寫Table

string s="<table>"

s+="<tr><td>";

s+=變量值;

s+="</td></tr></table>";

ResPonse.Write(s);

至于循環(huán)及其其他的方法自己構造

希望本文所述對大家asp.net程序設計有所幫助。