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    <p>As others have pointed out, what you are asking for is impossible. When you pass a variable to a method, it only sends the value, not the type. Also, the runtime has no knowledge of a variable's type within a method. Any variable type handling is done by the compiler. The runtime can only know the class of an object which a variable holds.</p> <p>As an alternative, if you can change the signature of your method, you could add a parameter which indicates the type of object to create. The calling method still doesn't need to know the exact type of the object, just whether it is a table view controller or not. Here is an example which uses an enumeration to hold the different types.</p> <pre><code>// header enum ViewControllerType { ViewControllerNormal = 0, ViewControllerTableView }; - (void)setupView:(UIViewController **)view ofType:(enum ViewControllerType)type; // implementation - (void)setupView:(UIViewController **)view ofType:(enum ViewControllerType)type { if(!view) { NSLog(@"setupView:ofType: received nil pointer"); return; } switch(type) { case ViewControllerNormal: // create normal UIViewController type break; case ViewControllerTableView: // create UITableViewController type break; default: NSLog(@"setupView:ofType: received unknown type: %i",type); return; } } </code></pre> <p>Used like:</p> <pre><code>UIViewController *view; [creatorObject setupView:&amp;view ofType:ViewControllerNormal]; // or UITableViewController *tableView; [creatorObject setupView:&amp;tableView ofType:ViewControllerTableView]; </code></pre>
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    1. COI've gone for this approach and it works in practice, but I still get a warning about passing argument 1 from incompatible pointer type. That is, in [creatorObject setupView:&view ofType:ViewControllerNormal]; the compiler complains about passing &view to an arg of type UIViewController**. Any thoughts?
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    2. CO@SaldaVonSchwartz I wouldn't have expected that if you're only using subclasses of `UIViewController`. The simplest thing would be to do a cast: `[creatorObject setupView:(UIViewController**)&view ofType:ViewControllerNormal];` (I'm not sure if you need to do anything special for ARC, you'll have to ask someone else if this doesn't work and you're using it).
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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