little question

[Kevin Auch]

Hi,

I want to know if it's possible from a popup to add Option on a Select
object on the parent, by just calling the Select object like this :

var openerForm = window.top.open er.document.for ms[0];
opt = new Option(theLabel , theValue,false, false);
openerForm.mySe lect.options[i] = opt;

Or maybe I must use another way by passing the option like a string on an
hidden field an evaluate this string ?

Thanks for your help

Kevin


//--------------------------------------------------
Kevin Auch
MVP .NET
CodeWise Community Member

http://www.dotnet-fr.org

----------------------------------------------------//

[Richard Cornford]

Re: little question

Kevin Auch wrote:[color=blue]
> I want to know if it's possible from a popup to add Option
> on a Select object on the parent, by just calling the Select
> object like this :
>
> var openerForm = window.top.open er.document.for ms[0];
> opt = new Option(theLabel , theValue,false, false);
> openerForm.mySe lect.options[i] = opt;[/color]

No it is not.
[color=blue]
> Or maybe I must use another way by passing the option like a
> string on an hidden field an evaluate this string ?[/color]

It is generally the rule in javascript that anything that proposes using
the - eval - function is the worst approach available.

The problem is (ultimately) the location in which the memory that your
new Option uses resided. If you use - new Option( ... ) - the new option
element is created in the window/frame in which the - Option -
constructor being used is located. Attempting to add that option to an
element of a form in another window/frame will not work.

Usually the simplest solution is to create a function in the
frame/window in which the form resides that will take (string and/or
number) arguments and locally create a new Option and insert it in the
form, calling that function from the separate frame/window.
[color=blue]
> //--------------------------------------------------[/color]

If you are going to post to Usenet you should use the specified standard
signature separator.
[color=blue]
> Kevin Auch
> MVP .NET[/color]

MVP?

Richard.