Error when passing data between views [duplicate] - iphone

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Closed 10 years ago.
Possible Duplicate:
How to pass data to detail view after being selected in a table view?
I'm using a plist (array of dictionaries) to populate a tableview. Now, when a cell i pressed, I want to pass the reprecented dictionary to the detail view with a segue. It's working properly to fill the tableview, but how do I send the same value to the detail view? This is my try:
#import "WinesViewController.h"
#import "WineObject.h"
#import "WineCell.h"
#import "WinesDetailViewController.h"
#interface WinesViewController ()
#end
#implementation WinesViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)viewDidUnload
{
[super viewDidUnload];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
#pragma mark - Table view data source
- (void)viewWillAppear:(BOOL)animated {
wine = [[WineObject alloc] initWithLibraryName:#"Wine"];
self.title = #"Vinene";
[self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [wine libraryCount];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"wineCell";
WineCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
// Configure the cell...
cell.nameLabel.text = [[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Name"];
cell.districtLabel.text = [[wine libraryItemAtIndex:indexPath.row] valueForKey:#"District"];
cell.countryLabel.text = [[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Country"];
cell.bottleImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Image"]];
cell.flagImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Flag"]];
cell.fyldeImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Fylde"]];
cell.friskhetImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Friskhet"]];
cell.garvesyreImageView.image = [UIImage imageNamed:[[wine libraryItemAtIndex:indexPath.row] valueForKey:#"Garvesyre"]];
return cell;
}
#pragma mark - Table view delegate
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([[segue identifier] isEqualToString:#"DetailSegue"]) {
NSIndexPath *selectedRowIndex = [self.tableView indexPathForSelectedRow];
WinesDetailViewController *winesdetailViewController = [segue destinationViewController];
//Here comes the error line:
winesdetailViewController.winedetailName = [wine objectAtIndex:indexPath.row] valueForKey:#"Name"];
}
}
I get one error for:
winesdetailViewController.winedetailName = [wine objectAtIndex:indexPath.row] valueForKey:#"Name"];
Use of undeclaired identifier: indexPath. did you mean NSIndexPath? I think I've missed something important here..

Answer 1

Instead of indexPath.row (which doesn't exist in this function like it does in your tableView:cellForRowAtIndexPath: function where it is passed as an argument) use selectedRowIndex like this:
winesdetailViewController.winedetailName = [wine objectAtIndex:selectedRowIndex.row] valueForKey:#"Name"];
Or, even better yet, change your detail view controller to just accept the whole dictionary, pass the dictionary, and let it set its' own values:
winesdetailViewController.winedetail = [wine objectAtIndex:selectedRowIndex.row];

Answer 2

The error is correct, there is no variable indexPath defined there. However, just a couple lines above that line you define selectedRowIndex which probably has the value that you're after.