Card layout is a layout manager that is applied to a container and components are added to the layout in a particular form, not between different forms.
Card layout treats each component in the container as a card. Only one card is visible at a time, and the container acts as a stack of cards. The first component added to a card layout object is the visible component when the container is first displayed. The child component/card can either be made to fill or simply centered within the container. Some common uses of a card layout are to create wizard controls and property pages.