NSView controls not resizing?

I have a NSVi开发者_如何转开发ew with a NSTableView inside of it.

If the view looks like this:

And the size & position properties for the Scollview (and tableview) look like this:

Then why when I resize the view, does it look like this:

Are my autosizing properties not set correctly? To my understanding they should be?

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To make it clearer, you won’t see autoresizing behaviour whilst designing your view in Interface Builder unless the border of the subview coincides with the corresponding border of the superview and Live Autoresizing is enabled.

This behaviour exists because resizing the superview can be used to indicate that you want a certain margin between the subview area and the superview area — for instance, you might have a 100pt margin between the subview’s right border and the superview’s right border, and then increase that margin to, say, 200pt by dragging the superview handles.

Edit: On the other hand, if you want to resize the superview whilst keeping the margins according to the autoresizing mask, you can drag the superview handles whilst holding the alt/option key.

Use Cocoa Simulator (File -> Simulate Interface) in order to test your interface, including autoresizing behaviour.

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The table with its scroll view will autoresize to your view's size only if you enter dimensions in by hand in Size info panel. They will not autoresize if you drag view's handles with mouse.