动态添加控件TextBox2-控件新闻-慧都网

动态添加控件TextBox2

翻译|其它|编辑：郝浩|2007-09-25 11:06:34.000|阅读 910 次

概述：

<%...@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<!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>无标题页</title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:Button ID="Button1" Style="z-index: 101; left: 64px; position: absolute; top: 184px"
                runat="server" Text="增加一个TextBox" OnClick="Button1_Click"></asp:Button>
            <asp:Button ID="Button2" Style="z-index: 102; left: 248px; position: absolute; top: 184px"
                runat="server" Text="提取全部TextBox的值" Width="200px" OnClick="Button2_Click"></asp:Button>
            <asp:TextBox ID="txt" Style="z-index: 103; left: 472px; position: absolute; top: 184px"
                runat="server" ReadOnly="True"></asp:TextBox>
        </div>
    </form>
</body>
</html>

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

public partial class Default2 : System.Web.UI.Page
...{
    protected void Page_Load(object sender, 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.Form.Controls.Add(tmp);
                tmp.Text = Request.Form[txtID].ToString();
            }
        }

    }

    private ArrayList TextBoxsList
    ...{
        get
        ...{
            if (ViewState["myTextBoxsList"] == null)
                return new ArrayList();
            else
                return ViewState["myTextBoxsList"] as ArrayList;
        }
        set
        ...{
            ViewState["myTextBoxsList"] = value;
        }
    }

    private TextBox[][] MyTextBoxs = new TextBox[][] ...{ new TextBox[] ...{ }, new TextBox[] ...{ }, new TextBox[] ...{ } };

    protected void Button2_Click(object sender, EventArgs e)
    ...{
        foreach (Control ctl in Page.Form.Controls)
        ...{
            if (ctl.GetType().Name == "TextBox")
            ...{
                if (ctl.ID != "txt")
                ...{
                    Response.Write(((TextBox)ctl).Text);
                }
            }
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    ...{

        TextBox tmp = new TextBox();
        tmp.ID = "TextBox" + this.TextBoxsList.Count.ToString();
        //Page.Controls[1].Controls.Add(tmp);
        Page.Form.Controls.Add(tmp);

        ArrayList array = this.TextBoxsList;
        array.Add(tmp.ID);
        this.TextBoxsList = array;
    }
}