怎样在<asp:table>动态添加一列<asp:textBox>

foreach(TableRow row in Table1.Rows)
{
TableCell cell = new TableCell();
cell.Controls.Add(new TextBox());
row.Cells.Add(cell);
}

用htmltablerow,htmltablecell
ref:
http://community.csdn.net/Expert/topic/5047/5047507.xml?temp=.8501856

有个Button，点一下，就生成一个TextBox
public partial class Default2 : System.Web.UI.Page
{
    public int n = 0;
protected void Button1_Click(object sender, EventArgs e)
    {
        TableRow tr = new TableRow();
        TableCell cell1 = new TableCell();
        cell1.Text = "规格名";
        tr.Cells.Add(cell1);        TableCell cell2 = new TableCell();
        TextBox tb1 = new TextBox();
        tb1.ID = "textbox" + n;
        cell2.Controls.Add(tb1);
        tr.Cells.Add(cell2);        Table1.Rows.Add(tr);
        this.n = this.n + 1;
   }
}
怎么只能生成一个？？再点就没反应了？？

动态生成的控件都是如此，postback后就没有了，如果需要点一下生成一个，则需要特殊的处理，例子：<%@ Page language="c#" Codebehind="动态添加控件（一）.aspx.cs" AutoEventWireup="false" Inherits="bsTest2005_8_16.Samples.动态添加控件_一_" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>动态添加控件（一）</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<asp:Button id="Button1" style="Z-INDEX: 101; LEFT: 64px; POSITION: absolute; TOP: 184px" runat="server"
Text="增加一个TextBox"></asp:Button>
<asp:Button id="Button2" style="Z-INDEX: 102; LEFT: 248px; POSITION: absolute; TOP: 184px" runat="server"
Text="提取第一个TextBox的值 ==>" Width="200px"></asp:Button>
<asp:TextBox id="txt" style="Z-INDEX: 103; LEFT: 472px; POSITION: absolute; TOP: 184px" runat="server"
ReadOnly="True"></asp:TextBox>
</form>
</body>
</HTML>
**************************
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;namespace bsTest2005_8_16.Samples
{
/// <summary>
/// 动态添加控件_一_ 的摘要说明。
/// </summary>
public class 动态添加控件_一_ : System.Web.UI.Page
{
        protected System.Web.UI.WebControls.Button Button2;
        protected System.Web.UI.WebControls.TextBox txt;
        protected System.Web.UI.WebControls.Button Button1;
        private ArrayList TextBoxsList
        {
            get
            {
                if(ViewState["myTextBoxsList"]==null)
                    return new ArrayList();
                else
                    return ViewState["myTextBoxsList"] as ArrayList;
            }
            set
            {
                ViewState["myTextBoxsList"] = value;
            }
        }
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
            if(Page.IsPostBack)
            {
                for(int i=0;i<this.TextBoxsList.Count;i++)
                {
                    string txtID = this.TextBoxsList[i].ToString();
                    TextBox tmp = new TextBox();
                    tmp.ID = txtID;
                    Page.Controls[1].Controls.Add(tmp);
                    tmp.Text = Request.Form[txtID].ToString();
                }
            }
} private TextBox[][] MyTextBoxs = new TextBox[][]{new TextBox[]{},new TextBox[]{},new TextBox[]{}};
        private void Button1_Click(object sender, System.EventArgs e)
        {
            TextBox tmp = new TextBox();
            tmp.ID = "TextBox" + this.TextBoxsList.Count.ToString();
            Page.Controls[1].Controls.Add(tmp);            ArrayList array = this.TextBoxsList;
            array.Add(tmp.ID);
            this.TextBoxsList = array;
        }        private void Button2_Click(object sender, System.EventArgs e)
        {
            this.txt.Text = ((TextBox)Page.FindControl("TextBox0")).Text;
        } #region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Button2.Click += new System.EventHandler(this.Button2_Click);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion
}
}

“/Web”应用程序中的服务器错误。类型“TextBox”的控件“TextBox0”必须放在具有 runat=server 的窗体标记内。

to:
怎么只能生成一个？？再点就没反应了？？LZ只增加了一个textBox..
如果要增加一列,需要用循环哟!!!!如:
html:
<table id="tab" runat="server" />cs:
int i;
for (i=0;i<10;i++){
HtmlTableRow row =new HtmlTableRow;
HtmlTableCell cell=new HtmlTableCell;
cell.innerText="规格名";
row.Cells.Add(cell);
cell=new HtmlTableCell;
System.Web.UI.WebControls.TextBox txt=new System.Web.UI.WebControls.TextBox;
txt.ID="textBox"+i.ToString();
cell.Controls.Add(txt);
row.Cells.Add(cell);
tab.Rows.Add(row);
}
//这里增加了十行...每行二列

sorry:
HtmlTableRow row =new HtmlTableRow;
HtmlTableCell cell=new HtmlTableCell;
应改成:
HtmlTableRow row =new HtmlTableRow();
HtmlTableCell cell=new HtmlTableCell();下面还有一个也要改一下,就可以了呀.....呵呵

调试易

怎样在<asp:table>动态添加一列<asp:textBox>

解决方案 »