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我的页面上只有一个Label,ID叫rag1,后台变量aa="1234",rag1.Text=aa;现在想在javascript里取出Label的text值。二是反过来可以用javascript给Label赋值，然后我在后台变量取Label的值这是个摸呢，做通了我有用。
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pipi1269 2005-03-15
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赋值的时候好像需要这样吧
eval(lbl).innerText="赋值";
eval(lbl).innerText="赋值";
baobei7758 2005-03-15
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up
暗石绿 2005-03-15
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<%@ Page language="c#" AutoEventWireup="false" debug="true"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head>
<title>WebForm</title>
<meta name="CODE_LANGUAGE" Content="C#">
<meta name=vs_defaultClientScript content="JavaScript">
<meta name=vs_targetSchema content="http://schemas.microsoft.com/intellisense/ie5">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<SCRIPT LANGUAGE="JavaScript">
<!--
function GetValue()
{
var v = document.all("rag1").innerText;
alert("Label的值是： " + v);
}
function SetValue()
{
var v = "10000";
document.all("rag1").innerText = v;
alert("Label的值是： " + document.all("rag1").innerText);
}
//-->
</SCRIPT>
<script runat="server" language="c#">
string aa = null;
private void Page_Load(object sender, System.EventArgs e)
{
if( !IsPostBack )
{
aa="1234";
rag1.Text = aa;
}
}
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
</script>
</head>
<body>
<form id="Form1" method="post" runat="server">
<asp:Label id="rag1" runat="server"/>
<br>
<input type="button" value="用js取Label值" onclick="GetValue();">
<input type="button" value="用js赋Label值" onclick="SetValue();">
</form>
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head>
<title>WebForm</title>
<meta name="CODE_LANGUAGE" Content="C#">
<meta name=vs_defaultClientScript content="JavaScript">
<meta name=vs_targetSchema content="http://schemas.microsoft.com/intellisense/ie5">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<SCRIPT LANGUAGE="JavaScript">
<!--
function GetValue()
{
var v = document.all("rag1").innerText;
alert("Label的值是： " + v);
}
function SetValue()
{
var v = "10000";
document.all("rag1").innerText = v;
alert("Label的值是： " + document.all("rag1").innerText);
}
//-->
</SCRIPT>
<script runat="server" language="c#">
string aa = null;
private void Page_Load(object sender, System.EventArgs e)
{
if( !IsPostBack )
{
aa="1234";
rag1.Text = aa;
}
}
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
</script>
</head>
<body>
<form id="Form1" method="post" runat="server">
<asp:Label id="rag1" runat="server"/>
<br>
<input type="button" value="用js取Label值" onclick="GetValue();">
<input type="button" value="用js赋Label值" onclick="SetValue();">
</form>
</body>
</html>
owenbeckham 2005-03-15
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<script language="javascript">
var lbl = document.getElementById("ragl");
alert(lbl.innerText);
lbl.innerText = "赋值";
</script>
var lbl = document.getElementById("ragl");
alert(lbl.innerText);
lbl.innerText = "赋值";
</script>
DeltaCat 2005-03-15
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服务器端的代码自己写吧，没什么了
DeltaCat 2005-03-15
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<script language="javascript">
var lbl = document.getElementById("ragl");
alert(lbl.innerText);
lbl.innerText = "赋值";
</script>
var lbl = document.getElementById("ragl");
alert(lbl.innerText);
lbl.innerText = "赋值";
</script>
jhqjhq 2005-03-15
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可以加个隐藏 lab，服务器端，用来保存数据
