iphone listview with several cells - iphone

Question

I have been able to make the listview show a single field of data using parts of the code like below.
NSMutableArray *array;
..
..
array = [[NSMutableArray alloc] init];
[array addObject:#"John Doe"];
However I want to keep several fields, like:
Name
ID
Date of Birth
I assume the NSMutableArrary is a NSString but I need something like a struct in C that holds the fields I need.
The ID would be "Hidden" but I need to access it when the user clicks on the line. How I access the ID and the other fields? How do I set this up so the list has the information?
Does anyone have any example code that might explain how to do this?
EDIT #1: Thanks for the comments, but I am too new to iPhone and really need to find example code on how to do this. While the comments make it sound like can do this, I dont know where to start. Can someone post example code for the idea of 3 fields?
EDIT #2: I have tried everything so far, is the the correct way to do this or should I use the ideas below?
Userrec.m
#import "UserRec.h"
#implementation Userrec
#synthesize Name, ID;
-(id)initWithName:(NSString *)n ID:(NSString *)d {
self.Name = n;
self.ID = d;
return self;
}
#end
UserRec.h
#import <UIKit/UIKit.h>
#interface Userrec : NSObject {
NSString *Name;
NSString *ID;
}
#property (nonatomic, retain) NSString *Name;
#property (nonatomic, retain) NSString *ID;
-(id)initWithName:(NSString *)n ID:(NSString *)d;
#end
UserList.m
#synthesize userrecs;
…
- (void)viewDidLoad {
[super viewDidLoad];
NSString *Name = #"Name";
NSString *ID = #"IID";
Userrec *userrec = [[Userrec alloc] initWithName:Name ID:ID ];
[userrecs addObject:userrec];
NSLog(#"Count %d",[userrecs count]);
[userrec release];
NSLog(#"Count %d",[userrecs count]);
}
After I addobject and check the count its = 0. So I assume something is wrong?

Answer 1

NSMutableDictionary is the best way to go. You can do something as follows:
NSMutableDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:#"John Doe", #"Name", [NSNumber numberWithInt:5], #"ID", nil];
You can keep adding as many fields as you like with that same template, even NSArray objects. I'd look up the documentation if you have any more trouble. Remember, you can only store pointers to objects in an NSDictionary. Things like
NSMutableDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:#"John Doe", #"Name", 5, #"ID", nil];
won't work. Good Luck!

Answer 2

Take a look at an NSMutableDictionary it seems like the exact thing you would want to use
Edit:
Here's some sample code
NSMutableArray *myData = [[NSMutableArray alloc] init];
NSMutableDictionary *myRow = [[NSMutableDictionary alloc] init];
[myRow setObject:#"John Doe" forKey:#"Name"];
[myRow setObject:#"4738" forKey:#"ID"];
[myRow setObject:#"1/23/45" forKey:#"DOB"];
[myData addObject:myRow];
[myRow release];
//Repeat from dictioanry alloc through release for each row you need to add
To display this in a UITableView, you need to have a UITableViewController class. In there override the cellForRowAtIndexPath: function. here is a simple implementation of that function
-(UITableViewCell*) tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSInteger row = [indexPath row];
static NSString *kCellID = #"cellID";
UITableViewCell *cell = nil;
cell = [tableView dequeueReuseableCellWithIdentifier:kCellID];
if ( cell == nil )
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:kCellID] autorelease];
}
NSMutableDictionary curRow = [myData objectAtIndex:row];
cell.textLabel.text = [curRow objectForKey:#"Name"];
return cell;
}