后台取得非服务器控件的一种方法(Request.Form.GetKey(i))

最新推荐文章于 2021-12-29 18:10:40 发布

转载最新推荐文章于 2021-12-29 18:10:40 发布 · 134 阅读

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本文介绍了一种在ASP.NET中操作非服务器控件的方法，重点演示了如何通过后台代码动态创建HTML表格并添加到页面上，同时展示了如何获取非服务器控件如复选框的值。

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

<! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" >

< html xmlns ="http://www.w3.org/1999/xhtml" >
< head runat ="server" >
     < title > 后台取得非服务器控件的一种方法(Request.Form.GetKey(i)) </ title >
</ head >
< body >
     < form id ="form1" runat ="server" onsubmit ="" >
     < div >
         < input id ="chk_1" name ="chk_1" type ="checkbox" />
         < input id ="chk_2" name ="chk_2" type ="checkbox" />
         < table >
             < tr >
                 < td id ="tdServer" runat ="server" >

                 </ td >
             </ tr >
         </ table >
         < asp:Button ID ="btnShow" runat ="server" Text ="Show" onclick ="btnShow_Click" />
     </ div >
     </ form >
</ body >
</ html >

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;

public partial class test_Tables : System.Web.UI.Page
{
     protected void Page_Load( object sender, EventArgs e)
    {
         if ( ! IsPostBack)
            Bind();
    }
     /// <summary>
     /// 后台操作table
     /// </summary>
     private void Bind()
    {
        HtmlTableCell hCell01 = new HtmlTableCell();
        hCell01.InnerText = " hello01<input type=text /> " ; // InnerText与InnerHtml的区别
        HtmlTableCell hCell02 = new HtmlTableCell();
        hCell02.InnerHtml = " hello02<input id=\ " chk_3\ " type=\ " checkbox\ " name=\ " chk_3\ " /> " ;

        HtmlTableRow hRow1 = new HtmlTableRow();
        hRow1.Cells.Add(hCell01);
        hRow1.Cells.Add(hCell02);

        HtmlTable hTable = new HtmlTable();
        hTable.Border = 1 ;
        hTable.Rows.Add(hRow1);

        tdServer.Controls.Add(hTable);
    }
     /// <summary>
     /// 后台取得非服务器控件checkbox的值，这里的值就是name属性
     /// </summary>
     /// <param name="sender"></param>
     /// <param name="e"></param>
     protected void btnShow_Click( object sender, EventArgs e)
    {
         string names = "" ;
         for ( int i = 0 ; i < Request.Form.Count; i ++ )
        {
             string strChk = Request.Form.GetKey(i); // 这里取得的是name属性，如果没有设置name属性将取不到。
             if (strChk.IndexOf( " chk_ " ) == 0 )
            {
                names += strChk + " , " ;
            }
        }
        Response.Write(names + " /// " + Request.Form.Count);
    }
}