Hmmm. When I add a "nil" column test, the resulting table has the
correct number of rows and group rows appear, but it wipes out all the
data the cells are supposed to display. By that I mean the table cells
are all empty and uneditable. Data only appears in the cells if I
remove or comment out the "else if (columnIdentifier == nil)" block.
I noticed this a few weeks ago when I first started using tableView:
dataCellForTableColumn: row: but couldn't figure out what was going
on. It seems almost like the table renders twice. The first time it
ignores your commands and just does whatever it wants and the second
time it actually pays attention to the tests.
- (NSCell *) tableView:(NSTableView *) inTableView
dataCellForTableColumn:(NSTableColumn *) inTableColumn
row:(NSInteger) inRow
{
NSString *columnIdentifier = [inTableColumn
identifier],
*cellType = [[[testController arrangedObjects] objectAtIndex:
inRow] objectForKey: @"cell_type"];
if ([columnIdentifier isEqualToString: @"delete"])
{
NSLog(@"delete table column");
return [cellType isEqualToString: @"project"] ? addCell :
deleteCell ;
}
else if ([columnIdentifier isEqualToString: @"page_number"])
{
NSLog(@"page number table column");
return [cellType isEqualToString: @"project"] ? projectNameCell :
pageNumberCell ;
}
else if ([columnIdentifier isEqualToString: @"master"])
{
NSLog(@"master table column");
return [cellType isEqualToString: @"project"] ? dummyCell :
masterPageCell ;
}
/*else if ((inTableColumn == nil) || (columnIdentifier == nil))
{
// if this block is commented out, the NSLogs in the above 3 blocks
print and the cell data displays
// if it is uncommented none of the cell data displays and all that
logs to the console is "nil table column." The above 3 logs never print.
NSLog(@"nil table column");
return pageNumberCell;
}*/
else
return [inTableColumn dataCellForRow: inRow];
}
On Feb 19, 2009, at 7:18 PM, Kyle Sluder wrote:
According to the documentation, group rows are treated in delegate
methods as belonging to a nil column. You seem only to be testing for
actual columns.
Not entirely sure about the editing problem; you're making the cell
not editable, which is appropriate, but perhaps because you're
mistakenly returning the cell in response to a column request it's
using that column's editable property.
--Kyle Sluder
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