A higher level object (PMController ) contains an NSMutableArray
property which stores a collection of "PMProject" objects and an
NSTreeController property to serve as the intermediary between the
NSMutableArray and an NSOutlineView.
I'm setting up the NSTreeController like so:
- (void) initTableController
{
tableController = [[NSTreeController alloc] initWithContent:
nil];
[tableController setChildrenKeyPath: @"children"];
[tableController setLeafKeyPath: @"isLeafNode"];
// NOTE: PMController is a singleton class that stores an
// NSMutable array of currently open PMProject objects
[tableController bind: @"contentArray" toObject: [PMController
sharedController] withKeyPath: @"currentProjects" options: nil];
}
And am trying to bind the "name" column of the NSOutlineView to the
NSTreeController like this
- (void) initMyProjectOutline
{
// create text cell
nameCell = [[NSTextFieldCell alloc] init];
// create the name column
nameColumn = [[NSTableColumn alloc] initWithIdentifier:
@"name"];
[nameColumn setDataCell: nameCell];
[nameColumn setMinWidth: 1000];
// bind value to MyProject:name accessor
// NOTE: I've tried both of the following but am getting nothing in
the NSOutlineView "name" column
[nameColumn bind: @"value" toObject: tableController withKeyPath: @"content.name
" options: nil];
[nameColumn bind: @"value" toObject: [tableController content]
withKeyPath: @"name" options: nil];
// create the table
table = [[NSOutlineView alloc] initWithFrame: tableFrame];
[table addTableColumn: nameColumn];
[table setHeaderView: nil];
[table setAutoresizingMask: NSViewWidthSizable | NSViewMaxYMargin];
[table setUsesAlternatingRowBackgroundColors: YES];
[table setFocusRingType: NSFocusRingTypeNone];
[table setColumnAutoresizingStyle:
NSTableViewLastColumnOnlyAutoresizingStyle];
[table bind: @"content" toObject: tableController withKeyPath:
@"content" options: nil];
[self addSubview: table];
Reverse the order here. Add the column to the outlineView and then
bind it (the column). The binding for the column should be
[nameColumn bind: @"value" toObject: tableController withKeyPath: @"arrangedObjects.name
" options: nil];
And you don't have to bind the outlineView's content at all. That
happens automatically when you bind one of the outlineView's columns.
By binding the column after it's added to the outlineView, you'll also
get the sortDescriptors and selectionIndexPaths bindings set up for you.
--------------------------
RONZILLA
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