Re: [Repost] Subclassing NSTableColumn
Re: [Repost] Subclassing NSTableColumn
- Subject: Re: [Repost] Subclassing NSTableColumn
- From: Jonathan Jackel <email@hidden>
- Date: Sun, 10 Nov 2002 15:30:09 -0500
on 11/9/02 3:51 AM, Ken Tozier at email@hidden wrote:
>
I need to create a subclass of NSTableColumn so that it can display
>
several different types of data and controls in it's cells but I'm not
>
sure how to get the table to use my subclass rather the the default one.
You have to do this programmatically, not in Interface Builder. In
awakeFromNib: you would create an instance of your KTTableColumn, then use
[NSTableView addColumn:] to add your column to your view. Then you might
have to move the columns around (moveColumn:toColumn:) to get them arranged
right.
>
Also, I'm not entirely sure exactly how to override data members in an
>
opaque Cocoa class. Ideally, I'd like to replace "dataCell" in
>
NSTableColumn with an NSArray and cache the three or four different
>
button and field types in this array. Would I subclass NSTableColumn,
>
add something like a "dataCells" field and override the corresponding
>
accessor methods by writing my own versions with the exact same method
>
name?
You don't necessarily have to subclass NSTableColumn to do this. You can
use [NSTableColumn setDataCell:] to swap out the cells as necessary.
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