HI, I have data in NSMutableArray and I want to display it in NSTableView, but only the number of cols has changed. This use of NSTableView is based on tutorial: http://www.youtube.com/watch?v=5teN5pMf-rs FinalImageBrowser is IBOutlet to NSTableView

@implementation AppController

NSMutableArray *listData;


- (void)awakeFromNib {
    [FinalImageBrowser setDataSource:self];
}

- (IBAction)StartReconstruction:(id)sender 
{
    NSMutableArray *ArrayOfFinals = [[NSMutableArray alloc] init]; //Array of list with final images
    NSString *FinalPicture;
    NSString *PicNum;
    int FromLine = [TextFieldFrom intValue]; //read number of start line 
    int ToLine = [TextFieldTo intValue];     //read number of finish line
    int RecLine;

    for (RecLine = FromLine; RecLine < ToLine; RecLine++)  //reconstruct from line to line
    {
        Start(RecLine);    //start reconstruction
                //Create path of final image
        FinalPicture = @"FIN/final";
        PicNum = [NSString stringWithFormat: @"%d", RecLine];
        FinalPicture = [FinalPicture stringByAppendingString:PicNum];
        FinalPicture = [FinalPicture stringByAppendingString:@".bmp"];
        [ArrayOfFinals addObject:FinalPicture]; // add path to array

    }


    listData = [[NSMutableArray alloc] init];
    [listData autorelease]; 

    [listData addObjectsFromArray:ArrayOfFinals];

    [FinalImageBrowser reloadData]; 

    NSBeep(); //make some noise

    NSImage *fin = [[NSImage alloc] initWithContentsOfFile:FinalPicture];
    [FinalImage setImage:fin];

}


- (int)numberOfRowsInTableView:(NSTableView *)tv {
    return [listData count];
}

- (id)tableView:(NSTableView *)tv objectValueFromTableColumn:(NSTableColumn *)tableColumn row:(int)row {
    return (NSString *)[listData objectAtIndex:row];
}

@end

when the StartReconstruction end the number of cols have changed right, but they're empty. When I debug app, items in listData is rigth.

Thanks