Storyboard Preparing for Seque+Passing over data - objective-c

Question

I have a detail view controller that is hooked up to a table view cell. I have a data model. It is an NSObject and has a NSMutableArray will all my properties I need in them.
I hooked up a label to an #property and named it questionLabel. For some reason, when I push over to the detail view, it does not display the question I put in the data model for the NSMutableArray.
At first I thought the segue was not working, but when I tried to change the navigation bar title, it worked when I passed my data from my NSMutableArray.
Anyone know what I am doing wrong with my label?
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"pushDetail"])
{
// Create an instance of our DetailViewController
DetailQuestionViewController *DQV = [[DetailQuestionViewController alloc] init];
NSIndexPath *path = [self.tableView indexPathForSelectedRow];
// Setting DQV to the destinationViewController of the seque
DQV = [segue destinationViewController];
Question *selectedQuestion = [self.myQuestionList questionAtIndex:path.row];
DQV.questionLabel.text = [selectedQuestion questionName];
DQV.navigationItem.title = [selectedQuestion questionRowName];
}
}
UPDATE (For: adambinsz)
Table view
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"pushDetail"])
{
// Create an instance of our DetailViewController
DetailQuestionViewController *DQV = [[DetailQuestionViewController alloc] init];
// Setting DQV to the destinationViewController of the seque
DQV = [segue destinationViewController];
NSIndexPath *path = [self.tableView indexPathForSelectedRow];
Question *selectedQuestion = [self.myQuestionList questionAtIndex:path.row];
DQV.detailItem = selectedQuestion;
}
}
detailView
- (void)setDetailItem:(id)newDetailItem
{
if (_detailItem != newDetailItem) {
_detailItem = newDetailItem;
// Update the view.
[self configureView];
}
}
- (void)configureView
{
// Update the user interface for the detail item.
if (self.detailItem) {
Question *theQuestion = (Question *)self.detailItem;
self.questionLabel.text = theQuestion.questionName;
NSLog(#"The Question's questionName is %#", theQuestion.questionName);
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self configureView];
}
The reason I think it may not be working, is because the if statement for self.detailItem is not checking it correctly.
The method gets called just not the detailItem.

Answer 1

Your label probably hasn't been created yet when you try to set its text. I would create a selectedQuestion instance variable on DetailQuestionViewController and set it when you create the view controller. Something like this:
// Create an instance of our DetailViewController
DetailQuestionViewController *DQV = [[DetailQuestionViewController alloc] init];
NSIndexPath *path = [self.tableView indexPathForSelectedRow];
// Setting DQV to the destinationViewController of the seque
DQV = [segue destinationViewController];
DQV.selectedQuestion = [self.myQuestionList questionAtIndex:path.row];
And in DetailQuestionViewController's viewDidLoad method, set your label's text by using:
self.questionLabel.text = [selectedQuestion questionName];
self.navigationItem.title = [selectedQuestion questionRowName];