iOS Method prepareForSegue:sender ไม่โหลด Data จาก Plist ค่ะ

-(void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
    NSString *identifier = segue.identifier;

    if ([identifier isEqualToString:@"DataDetail"]) {
        //First get the data
        NSIndexPath *selectedIndexPath = self.tableView.indexPathForSelectedRow;
        NSMutableDictionary *data = self.datas[selectedIndexPath.row];

        DataDetailViewController *dataDetailViewController = segue.destinationViewController;
        dataDetailViewController.data = data;
    }   
}

-(void) viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    NSLog(@"viewWillAppear");
    NSString *name = self.data[@"name"];
    self.title = name;
    UIImage *image = self.data[@"image"];
    self.photoView.image = image;
    NSString *detail = self.data[@"detail"];
    self.TextView.text= detail;
}