在局部刷新时,动态创建多个TextBox后,怎么保存TextBox的Text属性的值
在局部刷新时,动态创建多个TextBox后,如何保存TextBox的Text属性的值?
大家好,请教一个问题:
在局部刷新时,动态创建多个TextBox后,如何保存TextBox的Text属性的值?
------解决方案--------------------
给你写了一个例子:
大家好,请教一个问题:
在局部刷新时,动态创建多个TextBox后,如何保存TextBox的Text属性的值?
------解决方案--------------------
给你写了一个例子:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TestAddText.aspx.cs" Inherits="TestAddText" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
</head>
<body>
<form id="form1" runat="server">
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="插入Txt" />
<asp:Button ID="Button3" runat="server" OnClick="Button3_Click" Text="选择最大" />
<asp:Button ID="Button4" runat="server" OnClick="Button4_Click" Text="删除最大" />
<hr />
<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>
<hr />
<asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="回发测试" />
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Web.UI.WebControls;
public partial class TestAddText : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.PlaceHolder1.Controls.Clear();
foreach (var id in IDs)
{
var txt = new TextBox { ID = id };
this.PlaceHolder1.Controls.Add(txt);
txt.TextChanged += txt_TextChanged;
}
}
void txt_TextChanged(object sender, EventArgs e)
{
var txt = (TextBox)sender;
ClientScript.RegisterStartupScript(this.GetType(), "txt_改变",
"alert('修改了" + txt.ID + "');", true);
}
private Color[] cs = new Color[] { Color.Black, Color.Blue, Color.Green, Color.Gold };
/// <summary>
/// 插入新的textbox
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Button1_Click(object sender, EventArgs e)
{
var id = Guid.NewGuid().ToString("n");
var txt = new TextBox
{
ID = id,
Text = new Random().Next(1, 100).ToString(),
Width = new Unit(20),
ForeColor = cs[new Random().Next(cs.Length)]
};
this.PlaceHolder1.Controls.Add(txt);
IDs.Add(id);