Not able to access array with ids in another view controller in iphone

these is some code from my project..

for (index=0; index<[feed count]; index++) {

    //NSLog(@"........%@",[feed objectAtIndex:2]);
    NSString* forName=[feed objectAtIndex:index];

    NSString *nameString = [forName valueForKey:@"name"];
    NSLog(@"--------%@",nameString);
    [nameArray addObject:nameString];

    NSString *idString = [forName valueForKey:@"id"];
    NSLog(@"--------%@",idString);
    [idArray addObject:idString];

}

MyFriends *detailViewController = [[MyFriends alloc] initWithNibName:@"MyFriends" bundle:nil];
// ...
// Pass the selected object to the new view controller.
detailViewController.fbNames=nameArr开发者_JAVA百科ay;
detailViewController.fbIds=idArray;
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];

My problem is in another controller when I am accessing array with names which is fbNames in another class it is showing me proper names,But when I am accessing fbIds which is the array with Ids ...they are showing me null..

how to correct this?

here...in this class ...fbNames are working fbIds are not..

   - (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 [fbNames count];

}

// Customize the appearance of table view cells.

    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

static NSString *CellIdentifier = @"Cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
    cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}

     // Configure the cell...
    cell.textLabel.text=[fbNames objectAtIndex:indexPath.row];
NSLog(@"%@",cell.textLabel.text);

return cell;

}

NSString* forName=[feed objectAtIndex:index];
NSString *nameString = [forName valueForKey:@"name"];

I don't think NSString has valueForKey: