How to connect between ASP.NET page and javascript
Question
I'm trying to put current time on ASP.NET page. How can i get the control ID from Javascript? I'm using C# ASP.NET
On my Form
<body onload="updateClock(); setInterval('updateClock()', 1000 )">
<form id="form1" runat="server" >
<span id="clock"> </span>
</form>
</body>
Javascript Function
function updateClock ( )
{
document.getElementById("clock").firstChild.nodeValue = currentTimeString;
}
3 answers
solution1
1 ACCPTED 2013-02-18 05:09:41
Try this:
<script type="text/javascript">
function ShowTime() {
var dt = new Date();
document.getElementById("<%= TextBox1.ClientID %>").value = dt.toLocaleTimeString();
window.setTimeout("ShowTime()", 1000);
}
</script>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<script type="text/javascript">
// a startup script to put everything in motion
window.setTimeout("ShowTime()", 1000);
</script>
If you are using normal web form then it can also be called on Body onload event. If you are using MasterPage then it can be called within ContentTemplate at the end after all the controls have been rendered.
solution2
0 2013-02-18 05:05:53
You can directly use JavaScript for displaying current time on the page.
Here is the link :- http://www.w3schools.com/js/tryit.asp?filename=tryjs_timing_clock
solution3
0 2013-02-18 05:07:09
Write function like this
function updateClock ( )
{
document.getElementById("clock").innerHTML = currentTimeString;
}
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