JScript error : Object expected.

Report · Apr 02, 2007

Hi,

Can someone please help me out here.
I am using asp javascript to develop my web page, i have the following function
defined in the head section of the page:

<head>
<script type="text/javascript">
function DisableSubGroup()
{
document.getElementById("SubGroupDD").disabled = "disabled";
}
</script>
</head>

I call the function from within my code in the following way.

<form action="CategoryListing.Mod.asp" method="post" name="SubForm" target="_self" id="SubForm">
<p>
<% if(ParentValue == String("Y"))
{
DisableSubGroup(); //Function call
}
%>
<select name="SubGroupDD" class="DefaultShortBox" id="SubGroupList" onchange="SubForm.submit()"
option selected= "<%Session("ActiveCategory")%>">

When i run it i get the following error every time..

Error Type:
Microsoft JScript runtime (0x800A138F)
Object expected
/DCASuppliersDatabase/CategoryListing.Mod.asp, line 218

What does it mean?
How do i get rid of it?
Regards

fifo

Report · Apr 02, 2007

You cannot call client side functions on the server.

--
Jules
http://www.charon.co.uk/charoncart
Charon Cart 3
Shopping Cart Extension for Dreamweaver MX/MX 2004

Report · Apr 02, 2007

fifo85 wrote:

> Hi,
>
> Can someone please help me out here.
> I am using asp javascript to develop my web page, i have the following function
> defined in the head section of the page:
>
> <head>
> <script type="text/javascript">
> function DisableSubGroup()
> {
> document.getElementById("SubGroupDD").disabled = "disabled";
> }

Normally the disabled property is Boolean
document.getElementById("SubGroupDD").disabled = true;

> </script>
> </head>
>
> I call the function from within my code in the following way.
>
> <form action="CategoryListing.Mod.asp" method="post" name="SubForm"
> target="_self" id="SubForm">
> <p>
> <% if(ParentValue == String("Y"))
> {
> DisableSubGroup(); //Function call
> }
> %>

I'm not a vb/asp person, but I imagine that you can only make the call
to the DisableSubGroup() function *after* the element is writtten to the
document.

> <select name="SubGroupDD" class="DefaultShortBox" id="SubGroupList"
> onchange="SubForm.submit()"
> option selected= "<%Session("ActiveCategory")%>">

You are missing the closing ">" from the select tag, and the opening "<"
from the option tag.
And "SubForm.submit()" should be:
"this.form.submit()"
or
"document.SubForm.submit()"

Mick

>
> When i run it i get the following error every time..
>
> Error Type:
> Microsoft JScript runtime (0x800A138F)
> Object expected
> /DCASuppliersDatabase/CategoryListing.Mod.asp, line 218
>
> What does it mean?
> How do i get rid of it?
> Regards
>
> fifo
>

>

Report · Apr 02, 2007

Julian Roberts wrote:

> You cannot call client side functions on the server.
>
<script>
<?php echo "x=".$_GET["var"] ?>
function foo(){
if(x && x=="bar"){
alert(x)
}
}
foo()
</script>
Mick

Report · Apr 02, 2007

Yes, that's the way to do it. Execute the client-side code on the client.

--
Jules
http://www.charon.co.uk/charoncart
Charon Cart 3
Shopping Cart Extension for Dreamweaver MX/MX 2004

Report · Apr 03, 2007

Hi,

I have just tried the following code putting the script header to execute it on the client side:
<script>
if(ParentValue == String("Y"))
{
EnableSubGroup();
}
else
{
DisableSubGroup();
}
</script>

I do not get the object expected error anymore
but the functions don't work, why is this?

----Function definition ------
<script type="text/javascript">
function EnableSubGroup()
{
document.forms["SubForm"].elements["SubGroupDD"].disabled='false';
}
function DisableSubGroup()
{
document.forms["SubForm"].elements["SubGroupDD"].disabled='true';
}
</script>

Report · Apr 03, 2007

fifo85 wrote:

> Hi,
>
> I have just tried the following code putting the script header to execute it
> on the client side:
> <script>
> if(ParentValue == String("Y"))
> {
> EnableSubGroup();
> }
> else
> {
> DisableSubGroup();
> }
> </script>

Where do you get "ParentValue" from?
String("Y") is redundant.
if(ParentValue == "Y")

>
> I do not get the object expected error anymore
> but the functions don't work, why is this?
>
> ----Function definition ------
> <script type="text/javascript">
> function EnableSubGroup()
> {
> document.forms["SubForm"].elements["SubGroupDD"].disabled='false';
> }

document.forms["SubForm"].elements["SubGroupDD"].disabled=false;

There shoud be no quotes surrounding "false".

> function DisableSubGroup()
> {
> document.forms["SubForm"].elements["SubGroupDD"].disabled='true';
> }
document.forms["SubForm"].elements["SubGroupDD"].disabled=true;

> </script>

I think you're taking the wrong approach, if you are trying to disable a
form control depending on a server variable.

Mick

Report · Apr 04, 2007

Thanks for the response mick,

Parent value gets its value from the record set in the following code
var ParentValue = (rsGroups.Fields.Item("IsParent").Value);
in the server side code

then i use the code below to check its value
<script>
> if(ParentValue == String("Y"))
> {
> EnableSubGroup();
> }
> else
> {
> DisableSubGroup();
> }
> </script>

Whats wro ng with this?
Can't i do this?
What do you mean by server variable?
i didn't know that server and client variables have to be separate. Is this true?

thanks again

fifo

Report · Apr 04, 2007

fifo85 wrote:

> Thanks for the response mick,
>
> Parent value gets its value from the record set in the following code
> var ParentValue = ();
> in the server side code
>
> then i use the code below to check its value
> <script>
> > if(ParentValue == String("Y"))
> > {
> > EnableSubGroup();
> > }
> > else
> > {
> > DisableSubGroup();
> > }
> > </script>
>
> Whats wro ng with this?
> Can't i do this?
> What do you mean by server variable?
> i didn't know that server and client variables have to be separate. Is this
> true?

Yes this is true. But you can use the server language to print the
javascript variable.

Pseudo server code:
<servertag>
print "<script> var ParentValue='"
print rsGroups.Fields.Item("IsParent").Value;
print "'</script>";
</servertag>

But show me what you have done so far.

Mick

>
> thanks again
>
> fifo
>
>
>

Report · Apr 05, 2007

I have tried putting the following code along with my server side code This time placing the script tag round the
function call This works sometimes and
sometimes it doesn't - strange!
<%
if(ParentValue != String("Y"))
{%>
<script>
DisableSubGroup();
</script>
<%}%>

<script type="text/javascript">
function DisableSubGroup()
{
document.forms["SubForm"].elements["SubGroupDD"].disabled=true;
document.forms["SubGroupTFForm"].elements["SubGroupTF"].value =String("G");
document.getElementById("SubGroupDD").className = "GreyedShortBox";
}
</script>

Report · Apr 05, 2007

I need to see the whole page(source), fifo.
Mick

fifo85 wrote:

> I have tried putting the following code along with my server side code This
> time placing the script tag round the
> function call This works sometimes and
> sometimes it doesn't - strange!
> <%
> if(ParentValue != String("Y"))
> {%>
> <script>
> DisableSubGroup();
> </script>
> <%}%>
>
> <script type="text/javascript">
> function DisableSubGroup()
> {
> document.forms["SubForm"].elements["SubGroupDD"].disabled=true;
> document.forms["SubGroupTFForm"].elements["SubGroupTF"].value =String("G");
> document.getElementById("SubGroupDD").className = "GreyedShortBox";
> }
> </script>
>
>