title: expected method to read dictionary element not found on object of type 'nsstring *'
body: <p>I am trying to use a text field to type in some numbers and then have the Parse server look for images tagged with whatever number was typed in the field, but I am getting this big red error (in the subject header) when trying to build the app for testing.  Here's my code: </p>
  
  <pre><code>-(IBAction)Submit:(id)sender {
  
  PFFile *people = TicketNumberBox.text[@"ticketNumber"];
  [people getDataInBackgroundWithBlock:^(NSData *imageData, NSError *error) {
      if (!error) {
           UIImageView TicketImage = [UIImage imageWithData:imageData];
      }
  }];
  </code></pre>
  
  <p>}</p>
  
  <p>Here's an image to help you further:
  <img src="https://i.stack.imgur.com/ze9gx.png" alt="enter image description here"></p>