help

[Bob]

I tried this in <input name="some_name " type="text" value=""
onChange="auto_ select(0);">

but it gives a syntax error.


var cb = this.form.name
alert( "name=" + cb )


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[Ivo]

Re: syntax error, help

"Bob" wrote[color=blue]
> I tried this in <input name="some_name " type="text" value=""
> onChange="auto_ select(0);">
>
> but it gives a syntax error.
>
>
> var cb = this.form.name
> alert( "name=" + cb )[/color]

Hello Bob, not sure what you are trying to achieve here, but there are a
couple of things we can do about that. Could you please explain what you
would like to happen, what happens instead, and perhaps provide a bit more
code because it seems we are missing some relevant pieces. What is
auto_select(), are you sure the element referenced as "this" comes through
correctly?
Also 'help' isn't the most helpful subject line .
HTH
Ivo

[kaeli]

Re: help

In article <tHjxc.27261$sS 2.823079@news20 .bellglobal.com >,
bob.lockie.NOSP AM@mail.com enlightened us with...[color=blue]
> I tried this in <input name="some_name " type="text" value=""
> onChange="auto_ select(0);">
>
> but it gives a syntax error.
>
>
> var cb = this.form.name[/color]

'this', in a function, might not refer to what you thought it referred
to. I don't think it refers to the control, which is what that code
_seems_ to be thinking.

Post more code or a URL.

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[Bob]

Re: syntax error, help

On 06/08/04 10:29 Ivo spoke:[color=blue]
> "Bob" wrote
>[color=green]
>>I tried this in <input name="some_name " type="text" value=""
>>onChange="aut o_select(0);">
>>
>>but it gives a syntax error.
>>
>>
>> var cb = this.form.name
>> alert( "name=" + cb )[/color]
>
>
> Hello Bob, not sure what you are trying to achieve here, but there are a
> couple of things we can do about that. Could you please explain what you
> would like to happen, what happens instead, and perhaps provide a bit more
> code because it seems we are missing some relevant pieces. What is
> auto_select(), are you sure the element referenced as "this" comes through
> correctly?[/color]

function auto_select() {
// var cb = this.forms[0].elements["some_name"].name
var cb = this.form.name

alert( "name=" + cb )
}

I want to call auto_select when text is changed in the text field.
I tried var cb = this().form.nam e but I got "object is not function.



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[Lee]

Re: syntax error, help

Bob said:[color=blue]
>
>On 06/08/04 10:29 Ivo spoke:[color=green]
>> "Bob" wrote
>>[color=darkred]
>>>I tried this in <input name="some_name " type="text" value=""
>>>onChange="au to_select(0);">
>>>
>>>but it gives a syntax error.
>>>
>>>
>>> var cb = this.form.name
>>> alert( "name=" + cb )[/color]
>>
>>
>> Hello Bob, not sure what you are trying to achieve here, but there are a
>> couple of things we can do about that. Could you please explain what you
>> would like to happen, what happens instead, and perhaps provide a bit more
>> code because it seems we are missing some relevant pieces. What is
>> auto_select(), are you sure the element referenced as "this" comes through
>> correctly?[/color]
>
>function auto_select() {
>// var cb = this.forms[0].elements["some_name"].name
> var cb = this.form.name
>
> alert( "name=" + cb )
>}
>
>I want to call auto_select when text is changed in the text field.
>I tried var cb = this().form.nam e but I got "object is not function.[/color]

What are you trying to find the name of, the text field, or the
form that contains it? You've come closest to getting the name
of the form, but I'm not sure that's what you want.

In that context "this" refers to auto_select(), not the form field.
In the context of the onchange event handler function, "this" does
refer to the field, so you can have that function pass the reference
to auto_select():

<input name="some_name "
type="text"
value=""
onchange="auto_ select(this)">

function auto_select(fie ld) {
var cb = field.name
alert( "name=" + cb )
}

[Bob]

Re: syntax error, help

> What are you trying to find the name of, the text field, or the[color=blue]
> form that contains it? You've come closest to getting the name
> of the form, but I'm not sure that's what you want.[/color]

I want the name of the text field.

[color=blue]
>
> In that context "this" refers to auto_select(), not the form field.
> In the context of the onchange event handler function, "this" does
> refer to the field, so you can have that function pass the reference
> to auto_select():
>
> <input name="some_name "
> type="text"
> value=""
> onchange="auto_ select(this)">
>
> function auto_select(fie ld) {
> var cb = field.name
> alert( "name=" + cb )
> }
>[/color]

Thanks, got it.


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[Bob]

Re: syntax error, help

function auto_select( field, index ) {
var cb = field.form.elem ents["selectID"].name

alert( "name=" + cb )
}


</script>

<input name="content_2 16" type="text" value="1" onChange="auto_ select(
this, 0);">

<input name="content_2 17" type="text" value="2" onChange="auto_ select(
this, 0);">

<input name="selectID" value="216" type="checkbox" >
<input name="selectID" value="217" type="checkbox" >

There is a corresponding checkbox for every text entry field and what I
want is to make the checkbox selected if the text is changed.



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[Lee]

Re: syntax error, help

Bob said:[color=blue]
>
>function auto_select( field, index ) {
> var cb = field.form.elem ents["selectID"].name
>
> alert( "name=" + cb )
>}
>
>
></script>
>
><input name="content_2 16" type="text" value="1" onChange="auto_ select(
>this, 0);">
>
><input name="content_2 17" type="text" value="2" onChange="auto_ select(
>this, 0);">
>
><input name="selectID" value="216" type="checkbox" >
><input name="selectID" value="217" type="checkbox" >
>
>There is a corresponding checkbox for every text entry field and what I
>want is to make the checkbox selected if the text is changed.[/color]

Here's one way, assuming that you mean "checked" when you say "selected".
It might help to know what you're really trying to do.
Do you really need all of the checkboxes to have the same name attribute?
Does it matter if more than one checkbox is checked?


<html>
<head>
<script type="text/javascript">
function auto_select(fie ld) {
var cb=field.name.r eplace(/^content/,"select");
document.getEle mentById(cb).ch ecked=true;
}
</script>
</head>
<body>
<form>
<input name="content_2 16" type="text" value="1" onchange="auto_ select(this)">
<input name="selectID" value="216" id="select_216 " type="checkbox" >
<br>
<input name="content_2 17" type="text" value="2" onchange="auto_ select(this)">
<input name="selectID" value="217" id="select_217 " type="checkbox" >
</form>
</body>
</html>

[Bob]

Re: syntax error, help


I mean "checked" when you said "selected".
[color=blue]
> It might help to know what you're really trying to do.[/color]

I have x number of text fields each paired with a checkbox.
When a text field is changed I want to automatically select the
corresponding checkbox.

[color=blue]
> Do you really need all of the checkboxes to have the same name attribute?[/color]

There is a dynamic number of them (but each one is paired with a text
field with a unique "value") and I can iterate through each checkbox
(and find the corresponding text value) on the server in PHP if they
have the same name.
There is no guarantee that the unique values will be in sequence either.

The id= is used to uniquely identify the checkbox and the id is built
from the field name?

[color=blue]
> Does it matter if more than one checkbox is checked?[/color]

Yes, more than one checkbox can be checked.[color=blue]
>
>
> <html>
> <head>
> <script type="text/javascript">
> function auto_select(fie ld) {
> var cb=field.name.r eplace(/^content/,"select");
> document.getEle mentById(cb).ch ecked=true;
> }[/color]

Thank you, it seems to do exactly what I want.


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