Reputation: 19418

access an array within a structure

I am having trouble in accessing an array within a structure. How can I access an array which is stored in a structure ? I have a structure, say,

@interface FoodDriveRow : NSObject
{
NSMutableArray *teamData;
}
@property (nonatomic , retain) NSMutableArray *teamData;
@end

FoodDriveRow *row ;

now I want to access the array.

Edit

@interface TeamRow : NSObject
{
NSString *membername;
NSString *email;
NSString *phone;    
}
@property (nonatomic , retain) NSString *membername;
@property (nonatomic , retain) NSString *email;
@property (nonatomic , retain) NSString *phone;
@end

I am trying to store an object of TeamRow in to the array by

[row.teamData insertObject:tRow atIndex:tIndex1];

and want get the values from the array.

Thanks...

Upvotes: 0

Answers (6)

Sabobin

Reputation: 4276

You need to allocate the array, at the moment your array has a nil value.

Impliment -(id)init

Then within that you want to allocate your array and add some objects to it:

teamData = [[NSMutableArray alloc] init];
TeamRow *teamRow = [[TeamRow alloc] init]; 
[teamData addObject:teamRow];
[teamRow release];

Now you can access objects:

TeamRow *retrievedTeamRow = [teamData objectAtIndex:0];

Upvotes: 4

Jhaliya - Praveen Sharma

Reputation: 31730

FoodDriveRow* myDriveRow;

Use it as below , lets suppose you store NSString object in array

For Adding

- (void)addObject:(id)anObject

[myDriveRow.teamData  addObject:myString];

For Removing

(void)removeObject:(id)anObject

For Accessing

- (id)objectAtIndex:(NSUInteger)index

Upvotes: 3

FreeAsInBeer

Reputation: 12979

This isn't a structure (struct) that you are referring to, it's a class called FoodDriveRow that descends directly from NSObject. In order to access properties from an object, you can use the old style: