Passing data to table cells - ios

Question

I'm trying to pass values to a table cell but when I replace the string with userdata.title
it shows up blank. userdata is an object of another class UserData, which is external and I imported it. UserData is accessed from all views to pass objects around from one controller to another. Now, how do I pass value to a table, and how do I keep it if I decide to add more values through my textfield?
- (void)viewDidLoad
{
tabledata = [[NSMutableArray alloc] initWithObjects:#"hello", nil];
tablesubtitles = [[NSMutableArray alloc] initWithObjects:#"hello", nil];
[super viewDidLoad];
//if I use "userdata.title" in replacemnent of #"hello" above, the table show up blank
//self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
//--------------------------------------
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section;
{
return [tabledata count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath;
{
UITableViewCell *cell = nil;
cell = [tableView dequeueReusableCellWithIdentifier:#"homeworkcell"];
if(cell == nil)
{
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:#"homeworkcell"];
}
cell.textLabel.text = [tabledata objectAtIndex:indexPath.row];
cell.detailTextLabel.text = [tablesubtitles objectAtIndex:indexPath.row];
cell.textLabel.font = [UIFont systemFontOfSize:14.0];
//static NSString *CellIdentifier = #"Cell";
/* if (cell == nil) {
cell = [[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleSubtitle
reuseIdentifier:CellIdentifier];
}*/
// Configure the cell.
//-----------------------------------------START----------------------------Set image of cell----
cellImage = [UIImage imageNamed:#"checkboxblank.png"];
cell.imageView.image = cellImage;
//--------------------------------------------END---------------------------end set image of cell--
return cell;
}

Answer 1

To pass your data from one ViewController (vc1 for example) to another (vc2), you can set a property it the destination controller. So for the UIViewController above, you should add in the .h
#property (nonatomic, retain) UserData *tableDatas;
Then, in the view controller vc1, you will have:
vc2.tableDatas = userdatas;
Finally, in the UITableViewDelegate method:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
you can just use:
cell.textLabel.text = [self.tableDatas objectAtIndex:indexPath.row];
There should be some adjustment but the main parts are here.
Good luck.