Re: NSTableView updating checkboxes
Re: NSTableView updating checkboxes
- Subject: Re: NSTableView updating checkboxes
- From: Graham Cox <email@hidden>
- Date: Fri, 20 Mar 2009 16:56:36 +1100
On 20/03/2009, at 4:43 AM, Jo Phils wrote:
I am still a Cocoa beginner and looking for some help. Based on
Using a Table Data Source in the Table View Programming Guide I have
initiated my Table View with 2 columns...one for filenames and one
for checkboxes (NSButtonCell). Everything is fine except this method:
- (void)tableView:(NSTableView *)aTableView
setObjectValue:anObject
forTableColumn:(NSTableColumn *)aTableColumn
row:(int)rowIndex
I can't seem to get the right syntax to tell my Table View to toggle
the state. I am able to initiate my Table View with the checkboxes
in the ON state (other method) but this method is where I'm stuck.
My source is a NSArray *filenames and my table column is "column2."
If someone could help show me how to code this I would appreciate it
very much not just to get me passed this point but also so I can
learn what I'm doing wrong. :-)
You don't actually state clearly what the problem is, but there is a
minor error above:
setObjectValue:anObject
should be:
setObjectValue:(id) anObject
is that it?
I believe that types left out default to <id> so it may not be. If
your question is "how do I toggle the state of something in my data
model when the checkbox is changed?" then this may help:
- (void) tableView:(NSTableView*) tv setObjectValue:(id) objectVal
forTableColumn:(NSTableColumn*) column row:(int) rowIndex
{
id someObject;
someObject = [[self dataModel] objectAtIndex:rowIndex];
[someObject setValue:objectVal forKey:[column identifier]];
}
where [column identifier] returns the string which is the property key
for the boolean property of interest that the checkbox is
representing. You set this in IB, e.g. @"myBooleanProperty"
--Graham
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