[cmoad]

I have a subclass of NSDocument in which I have implemented the writeToFile and readFromFile methods. The writeToFile method works fine using writeToFile:atomically: and even the readFromDocument works. I am writing and reading an NSDictionary. The problem comes with loadDocWithData. When I debug my app and open a file, all the components run fine, but no data is displayed in my new window.

- (void)loadDocWithData NSMutableDictionary *)data {
Card *card;
NSString *keyword;
int i;

if (data) {
keywordList = [NSMutableArray arrayWithArray:[data allKeys]];

for (i = 0; i < [data count]; i++) {
keyword = [keywordList objectAtIndex:i];
NSLog(keyword);
NSLog([data objectForKey:keyword]);
card = [[[Card alloc] init] autorelease];
[card setWord:keyword];
[card setDefinition:[data objectForKey:keyword]];
[keywordDict setObject:card forKey:keyword];
}

[keywordTable reloadData];
[keywordTable selectRow:[keywordList indexOfObject:keyword] byExtendingSelection:NO];
}
}

The program works perfect when a new file is used, but when I try to open a saved file that I know has content, the new interface seems to be reset.
Any ideas on what the problem is???
Thanks,
Charlie

[ 02-05-2002: Message edited by: cmoad ]

[ 02-05-2002: Message edited by: cmoad ]

[Apocalypse]

I had a problem similar to this once. The cause was that I was opening the file and trying to display the data in the NIB before the NIB finished loading.

As I recall, the solution involved staring the data in a structure that is in the object opening the file. Then you have to implement the "awakeFromNib" or some other Nib load notification method to see if any data is waiting to be displayed and, if there is, draw the contents where it should be.

Try that out,
Jeff.

[lindberg]

Yup. -readFromFile: is called around document creation, but the nib isn't loaded until the window needs to be placed on screen, which happens later in the normal scheme of things. Therefore your keywordTable instance variable hasn't been set yet, and is nil.

You want the -reloadData call etc. after the nib is loaded. Putting it in awakeFromNib would work, though in an NSDocument subclass overriding windowControllerDidLoadNib: is conceptually a bit better. [In NSWindowController subclasses, override -windowDidLoad.] You probably want to call [super windowControllerDidLoadNib:theController] first for style points as well.

[cmoad]

Thanks for the replies. I have changed the program per your recommendations and it does indeed work.
Thanks again,
Charlie