I do so wish there was a Complete Idiot's Guide to Cocoa Table Bindings … The
very flexibility which I know must be their great virtue tends to obscure the
clear path from my sight more often than not. Forest, trees, trees, forest …
Oh! Something shiny!
---
So tonight I have an NSArrayController (RSTableArrayController) which I have
populated with dictionary objects of the form:
[self.content addObject:[NSDictionary dictionaryWithObjects: [NSArray
arrayWithObjects: key, [mvo valueForKey:key],nil] forKeys:[NSArray
arrayWithObjects:@"label",@"value",nil]]];
For this simple two column data I have a two column table, using Table View
Cells (I'm going to have visual objects in place of the 'label' later on).
I have set the identifier for the tableView columns very imaginatively to
"label", and "value".
The array controller is also < NSTableViewDataSource, NSTableViewDelegate >. I
have implemented the following two delegate methods:
- (NSInteger) numberOfRowsInTableView:(NSTableView *)aTableView {
return self.content.count;
}
- (id) tableView:(NSTableView *)aTableView
objectValueForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)rowIndex {
NSString * identifier = [tableColumn identifier];
NSDictionary * dict = [self.content objectAtIndex:rowIndex];
NSLog(@"%s- [%04d] %@: %@", __PRETTY_FUNCTION__, __LINE__,
identifier,[dict valueForKey:identifier]);
return [dict valueForKey:identifier];
}
In the nib, I have an ArrayController object of the class described above
RSTableArrayController. It is wired up as the delegate and dataSource for the
tableView.
And here is where I get lost time and again, tracing the appropriate path to
the content and it's constituent data parts and binding them to the appropriate
element in the tableView.
» Scroll View
» Table View
» Table Column
» Table Cell View
» Static Text
Text Field Cell
Given that the delegate method is called -[tableView:
objectValueForTableColumn: row:] I should expect to bind the arrayController's
objectValue in the Bindings Inspector to the ?node? in the object browser. Do
I need to do more than get that right?
~ Erik,
currently batting .034 in the bindings league ...
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