js如何控制label的visible属性，在线等

bzs123456 2008-04-08 02:58:04

document.getElementById("lblPwd").style.display = "none"
document.getElementById("lblPwd").style.display = "block"

document.getElementById("lblPwd").style.visibility = "hidden"
document.getElementById("lblPwd").style.visibility = "visible";

以上两种方法都不可以，我只是想做一个visible=false操作而已，望指教

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BillLi 2011-12-08

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问题在这,document.getElementById("lblPwd").value = "aaa";
label 无value属性,应该用innerHTML,或innerText

mataofq 2008-04-08

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runat="server"//。。。。。。。。

bzs123456 2008-04-08

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document.getElementById("lblPwd").style.display = "none"
document.getElementById("lblPwd").style.display = "block"

出现怪事了，现在又好了，不知道为什么，又可以用了，结贴，给分

bzs123456 2008-04-08

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html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>无标题页</title>
<script language=javascript>

function checkPWD(obj)
{
var str = obj.value;
if(str == "")
{
document.getElementById("lblPwd").value = "aaa";
// document.getElementById("lblPwd").style.visibility == "visible";

//obj.focus();
}
else
document.getElementById("lblPwd").value = "bbbb";
// document.getElementById("lblPwd").style.visibility == "hidden";
}

</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="hcname" runat="server" onblur="checkPWD(this)" Style="z-index: 100; left: 48px; position: absolute;
top: 34px"></asp:TextBox>
<asp:TextBox ID="hcvalue" runat="server" Style="z-index: 101; left: 46px; position: absolute;
top: 84px"></asp:TextBox>
<asp:Button ID="read" runat="server" Style="z-index: 102; left: 152px; position: absolute;
top: 143px" Text="read" OnClick="read_Click" />
<asp:Button ID="btnok" runat="server" Style="z-index: 103; left: 47px; position: absolute;
top: 144px" Text="ok" OnClick="btnok_Click" />
<asp:Label ID="Label1" runat="server" ></asp:Label>
<asp:Label ID="lblPwd" runat="server" > </asp:Label>

</div>
</form>
</body>
</html>

No_Data_Found 2008-04-08

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你这是 asp.net页面

发一下生成页面的相关源文件

bzs123456 2008-04-08

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<asp:TextBox ID="hcname" runat="server" onblur="checkPWD(this)" </asp:TextBox>

<asp:Label ID="lblPwd" runat="server" ></asp:Label>

function checkPWD(obj)
{
var str = obj.value;
if(str == "")
{
// document.getElementById("lblPwd").value = "aaa";
// document.getElementById("lblPwd").style.visibility == "visible";

obj.focus();
}
else
// document.getElementById("lblPwd").value = "bbbb";
// document.getElementById("lblPwd").style.visibility == "hidden";
}

zyf30222 2008-04-08

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我能实现啊，要不把代码发来看看。。。。

hookee 2008-04-08

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ie7 ff2 下测试可以，是不是其他代码引起的？



<html>

<head>

<script type="text/javascript">

function doit()

{

 document.getElementById("lblPwd").style.display = "none";

}

</script>

</head>

<body onclick="doit()">

<label id="lblPwd">xxxxxx</label>

</body>

</html>

No_Data_Found 2008-04-08

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可以隐藏的

<!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>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>无标题文档</title>

</head>



<body>

<label id="lblPwd"> lblPwd </label>

</body>



<script language="javascript">

document.getElementById("lblPwd").style.display = "none" 

</script>

</html>

No_Data_Found 2008-04-08

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要么用div

No_Data_Found 2008-04-08

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把label放在table里通过控制table的来实现label的隐藏和显示

比如把label1放在table1里 HTML：
<language="javascript">

</script>