Re: How to set a default row in NSTableView?
Re: How to set a default row in NSTableView?
- Subject: Re: How to set a default row in NSTableView?
- From: Mark Dawson <email@hidden>
- Date: Wed, 22 Jun 2005 18:51:05 -0700
After playing around a little, it looks like all I need to do is call
the -selectRowIndexes from my awakeFromNib. I don't have to call
reloadData, because nothing has been loaded yet (so the first loads
include the selected data)…
thanks for all of your help!
Mark
On Jun 21, 2005, at 9:23 PM, Mark Dawson wrote:
My main problem/issue is knowing WHEN my data source is populated.
It sounds like you're imagining that the table view gets "loaded up"
with data. That's not how it works. The only thing the table view
"holds on to" is the connection to the data source. It asks the data
source for bits of information only on an as-needed basis when the
time comes to display itself. For example, the table view doesn't
call -tableView:objectValueForTableColumn:row: for every single cell
-- only the ones it needs to display. And it doesn't maintain its own
array of cell values; rather, it asks the data source for cell values
one by one, and only holds on to each cell value long enough to
display it.
The only thing you probably need to do in your -awakeFromNib is call
either -noteNumberOfRowsChanged or -reloadData, to make sure the table
view knows the data source may have a different number of rows and/or
cell values than the last time it checked. Then you can select
whatever rows you want.
--Andy
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