iPhone Core Data: request for member 'tableView' in something not a structure or union

Question

I am trying to use CoreData to populate a UITableView. I have been using the developer "Locations" project, and I think I have everything correct. But, now I am getting the following error when I build:

request for member 'tableView' in something not a structure or union

Why would it be confused about tableView? I am using it many times in the methods. The errors seem to be coming from:

[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
[self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:YES];

Ideas?

Answer 1

What is self and why do you need to use it there?

If you are in a class with a member named tableView, probably the only time you need to access it using self is when you create it to allow your @property (retain) to take effect. Sure it's not a bad idea to make accesses to members explicitly clear either.

(edit for eman - no worries!)

Answer 2

Are you sure you're properly subclassing UITableViewController? As in,

@interface MyTableViewController : UITableViewController {}

EDIT: As Rob Lourens says, your problem is that you're subclassing UIViewController instead of UITableViewController. UIViewController has a generic view property, but no table view--use it for any situation where you don't need to manage a table view, and use UITableViewController for any situation where you do.

Answer 3

That error tends to show up when you use dot-syntax in less than clear situations.

First, I would try changing it to [self tableView] and see if the issue goes away.

As for why it is occurring only in this method, more code would need to be shown to narrow down the specific issue.