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Answer 1

A:

Put it in server side tags,

        function showtime() {
             zone('<%= hiddenZone.Value %>',clock);
        }

Brandon 2009-07-15 17:06:22

Answer 2

+3 A:

You have to check against the hiddenZone ClientID.

function showtime() {
                 zone(
                      document.getElementById('<%=hiddenZone.ClientID%>'),
                      clock
                   );
            }

ASP.NET creates a new names for objects it creates on the HTML page, so they won't be the same as what you specify the id to be.

Kevin 2009-07-15 17:06:41

With .NET 4.0's ClientIdMode property, you will have more flexibility in situations like this.http://www.dotnetcube.com/post/Overview-of-NET-40-features-e28093-ASPNET-40-ClientIDMode.aspx

DotnetDude 2009-07-15 17:29:17

Answer 3

+1 A:

You can use your existing code by replacing:

function showtime() {
    zone(hiddenZone, 'clock');
}

with

function showtime() {
    var elem = document.getElementById('<%= hiddenZone.ClientID %>');
    // if you are using ASP.NET AJAX use:
    // var elem = $get('<%= hiddenZone.ClientID %>');

    zone(elem.value, 'clock');
}

I'm not sure what your 'zone' function does either. But something like this may point you in the right direction if you are also having difficulties with it as well:

function zone(tz, dispID) {
    var elem = document.getElementById(dispID);
    // if you are using ASP.NET AJAX use:
    // var elem = $get(dispID);

    elem.innerHTML = tz;
}

Alternatively, if it were a public property on your page you can remove your reference to the asp:HiddenField and just use:

function showtime() {
    zone(<%= MyFormsTimeZoneProperty %>, clock);
}

Adam Markowitz 2009-07-15 17:07:57

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