NSTableView setUsesAlternatingBackgroundColors:TRUE not working for added columns?
NSTableView setUsesAlternatingBackgroundColors:TRUE not working for added columns?
- Subject: NSTableView setUsesAlternatingBackgroundColors:TRUE not working for added columns?
- From: Jim Hagen <email@hidden>
- Date: Thu, 18 Mar 2004 11:00:28 -0800
I have a bit of code which manipulates a table, as I don't know how
many columns are in the data until runtime. I start with the minimum
number ( defined in IB ) and add others.
It goes something like this :
---snippet begin----
/*create the columns*/
for ( i=[[table tableColumns] count]; i<=totalColumns; i++ ){
currentNumber = [NSNumber numberWithInt:i];
NSTableColumn *cColumn = [[NSTableColumn alloc]
initWithIdentifier:currentNumber];
[[cColumn headerCell] setStringValue:[title
stringByAppendingString:[currentNumber stringValue]]];
[cColumn sizeToFit];
[table addTableColumn:[cColumn autorelease]];
}
/* it appears our new columns don't know about alternating colors?
can we fix that?*/
[table setUsesAlternatingRowBackgroundColors: TRUE];
/* reload the tale data */
[table reloadData];
---snippet end---
The problem is, in my newly added columns, the alternating background
colors don't show up. Previously existing rows ( set up in IB) keep
their alternating colors, it's just the new ones that don't have the
stripes. My table had ( in IB ) been set up with
usesAlternatingRowBackgroundColors TRUE, so really that line shouldn't
be needed at all... but my new rows don't get the alternating color
regardless, the behavior is exactly the same if that line is there or
not.
Interestingly, if I say [table setUsesAlternatingRowBackgroundColors:
FALSE]; instead of "TRUE", *all* rows show the non-alternating
background, including the previously existing ones. I just can't get
the added ones to show the alternating colors.
This is the first time I've tried adding columns to a table- is there
some detail that I'm missing when doing so? Might there be some call I
can make to get my new columns to show the alternating background?
Thanks in advance,
Jim
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