Mar 24, 2010, 7:11 AM
How to disable and enable a checkbox using Javascript
I need to disable some checkbox and radio button from checking another checkbox
I decide to use javascript to accelerate my webpage
But I cannot find exactly place to add or set attribute
Please help
following is my effort code but failed
I decide to use javascript to accelerate my webpage
But I cannot find exactly place to add or set attribute
Please help
following is my effort code but failed
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript" language="javascript">
function checkIt() {
var check1 = document.getElementById("Checkbox1");
var check2 = document.getElementById("Checkbox2_Container");
var check3 = Ex
var newAttr = document.createAttribute("disabled");
//alert(check2.checked)
if (check1.checked == true) {
newAttr.nodeValue = "disabled"
check2.setAttributeNode(newAttr);
}
}
</script>
</head>
<body>
<ext:ScriptManager ID="ScriptManager1" runat="server">
</ext:ScriptManager>
<form id="form1" runat="server">
<ext:Checkbox ID="Checkbox1" runat="server" BoxLabel = "Check1">
<Listeners>
<Check Fn= "checkIt" />
</Listeners>
</ext:Checkbox>
<ext:Checkbox ID="Checkbox2" runat="server" BoxLabel = "Check2">
</ext:Checkbox>
<ext:Checkbox ID="Checkbox3" runat="server" BoxLabel = "Check3" Enabled = "false">
</ext:Checkbox>
</form>
</body>
</html>
Thank you and best regard