Horizontal constraint relative to containing frame.

Vertical constraint relative to containing frame.

Guides to align and place objects within a parent container.

A vertical grid made of columns.

A horizontal grid made of rows.

A square grid.

Positioning of grid within the parent container.

• MinAlign: grid starts at the top (or left) of the container, filling the minimun space possible. The margin is applied before the grid.
• CenterAlign: grid is center aligned. Margin value is ignored.
• MaxAlign: grid stretches from the top (or left) to the bottom (or right) of the container, filling the maximun space possible. The margin is applied before and after the grid.