Access the main view controller from its container view

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C

Objective-C

I have a mainViewController with a container view in it. I'm trying to access theMainViewController from the container view.

Here is my code:

self.theMainViewController = (theMainViewController *)self.parentViewController;

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:idx inSection:0];
[self.theMainViewController .tableView selectRowAtIndexPath:indexPath animated:YES scrollPosition:UITableViewScrollPositionBottom];

This doesn't work. self.theMainViewController gives a nil value when I make an nslog of it. I then replaced:

self.parentViewController

to:

self presentingViewController

and it gave me the same results. How can I access the mainViewController from the container view's class?