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From: aesahab on 16 Sep 2005 19:21
Folks,

I'm writing this command:
form_name.elements[i].property_name = action; //action = true/false

I want to pass the property_name as dynamic value so if the function
passes "disabled" it'll be like:
form_name.elements[i].disabled = true;

I tried to do that with eval but couldn't get it to work!

Any ideas

From: RobG on 16 Sep 2005 19:42
aesahab(a)gmail.com wrote:
> Folks,
>
> I'm writing this command:
> form_name.elements[i].property_name = action; //action = true/false
>
> I want to pass the property_name as dynamic value so if the function
> passes "disabled" it'll be like:
> form_name.elements[i].disabled = true;
>
> I tried to do that with eval but couldn't get it to work!
>

As usual, there is no need for 'eval' at all. Whenever dot notation
doesn't work, try square brackets:

<script type="text/javascript">
function doThing( thing, prop, value )
{
thing[prop] = value;
}
</script>

<form action="">
<input type="text" name="fred"
<input type="button" value="Disable Fred" onclick="
doThing( this.form.fred, 'disabled', 'true');
">
</form>





--
Rob
From: aesahab on 16 Sep 2005 20:25
Rob and Lee, many thanks....works great

From: ASM on 16 Sep 2005 22:16
aesahab(a)gmail.com wrote:
> Folks,
>
> I'm writing this command:
> form_name.elements[i].property_name = action; //action = true/false
>
> I want to pass the property_name as dynamic value so if the function
> passes "disabled" it'll be like:
> form_name.elements[i].disabled = true;
>
> I tried to do that with eval but couldn't get it to work!

I do not understand your question (about eval ...)

<html>
<script type="text/javascript">
function truc(action) {
var d = document.form_name.elements[0];
d.property_name = action;
d.disabled = d.property_name;
d.value = d.property_name;
}
</script>
<form name="form_name">
<input type=text>
</form>
<button onclick="truc(false);">False</button>
<button onclick="truc(true);">True</button>
</html>


--
Stephane Moriaux et son [moins] vieux Mac
From: Gérard Talbot on 18 Sep 2005 17:17
aesahab(a)gmail.com a ýcrit :
> Folks,
>
> I'm writing this command:
> form_name.elements[i].property_name = action; //action = true/false
>
> I want to pass the property_name as dynamic value so if the function
> passes "disabled" it'll be like:
> form_name.elements[i].disabled = true;
>
> I tried to do that with eval

Never use eval(); 99% of the time, there is a better method than
resorting to eval().

but couldn't get it to work!
>
> Any ideas
>

document.forms.namedItem("form_name").elements.namedItem("property_name").disabled
= action; // action = true|false

W3C DOM 2 compliant

HTML collection
namedItem
This method retrieves a Node using a name.
http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-75708506

elements
http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-76728479

Other ways to get scriptable access to form controls:

Using Web Standards in Your Web Pages
Accessing Elements with the W3C DOM
http://www.mozilla.org/docs/web-developer/upgrade_2.html#dom_access


comp.lang.javascript FAQ: How do I get the value of a form control?
http://jibbering.com/faq/#FAQ4_13

Gýrard
--
remove blah to email me
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