How to observe edits for items using NSTreeController and NSOutlineView

Question

I have an NSOutlineView populated using an NSTreeController. The tree controller manages an array of NSMutableDictionary with properties including: NSString *name, and NSArray* children.

How do I get a notification when name has changed in the UI?

Answer 1

just put a function into delegate of NSOutlineView

- (BOOL)control:(NSControl *)control textShouldEndEditing:(NSText *)fieldEditor
{
    // for example that is checked that node text is not empty
    if ([[fieldEditor string] length] == 0)
    {
        return NO;
    }
    else
    {
        return YES;
    }
}