How to pass a value from an HTML hidden input to a JavaScript function?

[Steve Kershaw]

Hi,

I need to pass a value from a hidden input:
<input id="hiddentxtWi dth" type="hidden" value="1065" />
to a JavaScript function.

I've tried the following:
<script type="text/javascript" >
window.resizeTo (<%= hiddentxtWidth. value %>, <%=
hiddentxtHeight .value %>);
</script>

But I get a "The name 'hiddertxtWidth ' does not exist in the current
context" error.

I would very much like to store the page width and height in the
Web.Config file and pass it to the JavaScript function but I don't
know how to do that.

Any suggestions?

[sloan]

If you're doing this all clientside, then you're looking for

http://msdn2.microsoft.com/en-us/library/ms536437.aspx
function TestMe

{
var v=document.getE lementById("hid dentxtWidth");
if (null!=v)
{
alert(v.value);
}
}
something like that. give it a try.

Use null checks to avoid a bunch of javascript errors.

"Steve Kershaw" <st***********@ yahoo.comwrote in message
news:11******** **************@ u30g2000hsc.goo glegroups.com.. .

Hi,

I need to pass a value from a hidden input:
<input id="hiddentxtWi dth" type="hidden" value="1065" />
to a JavaScript function.

I've tried the following:
<script type="text/javascript" >
window.resizeTo (<%= hiddentxtWidth. value %>, <%=
hiddentxtHeight .value %>);
</script>

But I get a "The name 'hiddertxtWidth ' does not exist in the current
context" error.

I would very much like to store the page width and height in the
Web.Config file and pass it to the JavaScript function but I don't
know how to do that.

Any suggestions?

[John Kotuby]

Just type getElementById in google search and you'll see a bunch of
javascript links.

I don't know about using the web.config for holding window size information
but you can set session variables in the global.asax.
Then just grab session("elemW" ) if that's what you called it.
The syntax might not be exactly correct for grabbing the session variable,
but the concept is right.

"Steve Kershaw" <st***********@ yahoo.comwrote in message
news:11******** **************@ u30g2000hsc.goo glegroups.com.. .

Hi,

I need to pass a value from a hidden input:
<input id="hiddentxtWi dth" type="hidden" value="1065" />
to a JavaScript function.

I've tried the following:
<script type="text/javascript" >
window.resizeTo (<%= hiddentxtWidth. value %>, <%=
hiddentxtHeight .value %>);
</script>

But I get a "The name 'hiddertxtWidth ' does not exist in the current
context" error.

I would very much like to store the page width and height in the
Web.Config file and pass it to the JavaScript function but I don't
know how to do that.

Any suggestions?

[Eliyahu Goldin]

How to Pass Messages and Actions between Server and Client
http://usableasp.net/DeveloperPage.a...rAndClient.htm

--
Eliyahu Goldin,
Software Developer & Consultant
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
http://usableasp.net
"Steve Kershaw" <st***********@ yahoo.comwrote in message
news:11******** **************@ u30g2000hsc.goo glegroups.com.. .

Hi,

I need to pass a value from a hidden input:
<input id="hiddentxtWi dth" type="hidden" value="1065" />
to a JavaScript function.

I've tried the following:
<script type="text/javascript" >
window.resizeTo (<%= hiddentxtWidth. value %>, <%=
hiddentxtHeight .value %>);
</script>

But I get a "The name 'hiddertxtWidth ' does not exist in the current
context" error.

I would very much like to store the page width and height in the
Web.Config file and pass it to the JavaScript function but I don't
know how to do that.

Any suggestions?