We're trying to figure out how to get the keyboard to hide, but we're having problems getting the textFieldShouldReturn to fire. Why? 
This is what has been done:
*.h
@interface MultiSalesViewController : UIViewController <UITextFieldDelegate>
*.c
txtCardNumber.delegate = self;
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
    [textField setUserInteractionEnabled:YES];
    [textField resignFirstResponder];
    return YES;
}
Also, the textField has its delegate set to Files Owner in Interface Builder. One odd thing, is that the viewController's - (void)textFieldDidEndEditing:(UITextField *)textField is working. 
How to get the hiding of the keyboard working?
 
     
     
    
 
     
     
     
    
 
     
    
 
     
    