Re: Controlling rootElement Display in outline view
Re: Controlling rootElement Display in outline view
- Subject: Re: Controlling rootElement Display in outline view
- From: Corbin Dunn <email@hidden>
- Date: Wed, 24 Sep 2008 09:03:46 -0700
When the outline asks this with a nil 'item':
- (NSInteger)outlineView:(NSOutlineView *)outlineView
numberOfChildrenOfItem:(id)item;
Don't return 1, but instead, return the number of children in your
root item.
Then, when this is asked with a nil 'item':
- (id)outlineView:(NSOutlineView *)outlineView child:(NSInteger)index
ofItem:(id)item;
Return the children from your root node, and not the root node itself.
Ideally, you want some new delegate method, like: -
outlineViewRootItem. That doesn't exist.
corbin
On Sep 23, 2008, at 11:12 AM, Thomas Lennon wrote:
I was working through the “Using Tree Controllers With NSXML Objects”.
http://developer.apple.com/documentation/Cocoa/Conceptual/NSXML_Concepts/Art
icles/UsingTreeControllers.html#//apple_ref/doc/uid/TP40003565
I have an XML file and have coded following the example referenced
above and
all works fine and as expected. What I cannot figure out is how to
avoid
displaying the root element of the XML Document.
In my case the XML Document is a list of items and the rootElement
is a
description of the list. I want my outline view to display the list
and not
the list description.
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