Re: Popups Binding problem
Re: Popups Binding problem
- Subject: Re: Popups Binding problem
- From: Ken Thomases <email@hidden>
- Date: Fri, 21 Nov 2008 01:14:07 -0600
On Nov 20, 2008, at 8:02 AM, Kiran Kumar S wrote:
I have two popups which I want to bind together; the first popup
contains a list of Categories, which has an array of reports. The
reports array is a content array of the second popup.
I want to select a Category in the first popup and get a list of
reports in the second popup. When user changes a Category, the popup
updates with the corresponding list.
When I open the APP, the popups are populated correctly,
but the second one (with employees) doesn't update after Category
change.
Please Suggest me if any ideas
The selectedIndex binding of the first pop-up should be bound to the
selectionIndex property of the NSArrayController. Then, the content
of the second pop-up should be bound through the selection property of
that NSArrayController. You may want to put a second array controller
between the first array controller and the second pop-up, to manage
the resulting employees array.
There's an example of an arrangement similar to this here, although
this example uses a table for the first selection and doesn't make the
first selection binding explicit: http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaBindings/Concepts/WhatAreBindings.html#/
/apple_ref/doc/uid/20002372-181136
Cheers,
Ken
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