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 Test : System.Web.UI.Page,ICallbackEventHandler { string Resultstr = ""; protected void Page_Load(object sender, EventArgs e) { // } public void RaiseCallbackEvent(string eventArgument) { Resultstr = "返回了:" + eventArgument; } public string GetCallbackResult() { return Resultstr; } }
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Test" %>
<!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>
<script type="text/javascript">
function CallbackDo()
{
var resultStr=window.document.getElementById("txtname").value;
<%=this.ClientScript.GetCallbackEventReference(this,"resultStr","getResult",null) %>
}
function getResult(str)
{
document.getElementById("s").innerHTML=str
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="text" value="" id="txtname" />
<input type="button" value="提交" id="bt" onclick="CallbackDo()" />
</div>
<span id="s"></span>
</form>
</body>
</html>