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c# 通过ICallbackEventHandler 实现页面“无刷新”

2008-11-04 08:55 417 查看

C# 前台代码

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default25.aspx.cs" Inherits="Default25" %>

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

<script type="text/jscript">

function getvalue()

{

var value1 =document.getElementById("Text1").value;

var aa ="";

<%=gg() %>

}

function setvalue(result)

{

document.getElementById("Text2").value=result;

}

</script>

<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>

<input id="Text1" type="text" />

<input id="Button1" type="button" value="button" onclick="getvalue();"/>

<input id="Text2" type="text" />

</div>

</form>

</body>

</html>

c#后台代码

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 Default25 : System.Web.UI.Page,ICallbackEventHandler

{

string testvalue = "";

protected void Page_Load(object sender, EventArgs e)

{

}

public string gg()

{

return ClientScript.GetCallbackEventReference(this, "value1", "setvalue", "aa");

}

#region ICallbackEventHandler 成员

public string GetCallbackResult()

{

return testvalue;

}

public void RaiseCallbackEvent(string eventArgument)

{

testvalue = eventArgument + "1";

}

#endregion

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