IPhone SDK - scrollToRowAtIndexPath crashes if table is not loaded yet

I have a case where i have to scroll the UITableView to a particular row and section. When i tried this the application crashes when the table is not yet done loading.
Is there a way to find out if the table view is done loading?
I did not see any delegate methods which address this.
I would appreciate for any pointers on how to handle this scenario.
Thanks,
-TRS

Found a solution.
I reload the table before i ask it to scroll to a position.
- (void) setOrdinal:(jint) topItem {
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:topItem inSection:0];
[tableView reloadData];
[tableView scrollToRowAtIndexPath:indexPath atScrollPosition:UITableViewScrollPositionTop animated:NO];
The setOrdinal method is called by the user of the view containing the table.
This works just fine.
Thanks to all who took time to read this post.
-TRS

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