Instance Property

allowsEmptySelection

A Boolean value indicating whether the collection view may have no selected items.

Declaration

@property BOOL allowsEmptySelection;

Discussion

The default value of this property is YES, which allows the collection view to have no selected items. Setting this property to NO causes the collection view to always leave at least one item selected.

See Also

Managing the Selection

selectable

A Boolean value that indicates whether the user may select items in the collection view.

allowsMultipleSelection

A Boolean value that indicates whether the user may select more than one item in the collection view.

selectionIndexPaths

The set of index paths representing the currently selected items.

- selectAll:

Selects all items in the collection view, if doing so is possible.

- deselectAll:

Deselects all items in the collection view.

- selectItemsAtIndexPaths:scrollPosition:

Adds the specified items to the current selection and optionally scrolls the items into position.

- deselectItemsAtIndexPaths:

Removes the specified items from the current selection.