Question

Is there a way to cast objects in objective-c much like the way objects are cast in VB.NET?

For example, I am trying to do the following:

// create the view controller for the selected item FieldEditViewController *myEditController; switch (selectedItemTypeID) {     case 3:         myEditController = [[SelectionListViewController alloc] init];         myEditController.list = listOfItems;         break;     case 4:         // set myEditController to a diff view controller         break; }  // load the view [self.navigationController pushViewController:myEditController animated:YES]; [myEditController release];  

However I am getting a compiler error since the ‘list’ property exists in the SelectionListViewController class but not on the FieldEditViewController even though SelectionListViewController inherits from FieldEditViewController.

This makes sense, but is there a way to cast myEditController to a SelectionListViewController so I can access the ‘list’ property?

For example in VB.NET I would do:

CType(myEditController, SelectionListViewController).list = listOfItems 

Thanks for the help!

Answer 1

Remember, Objective-C is a superset of C, so typecasting works as it does in C:

myEditController = [[SelectionListViewController alloc] init]; ((SelectionListViewController *)myEditController).list = listOfItems;