Keyboard Handling for Two-Dimensional Navigation

The following keys and key combinations are used for navigation in two-dimensional item containers (for example, calenders and tables).

Key combination	Behavior
`LEFT`	If focus is on an item, move focus one item to the left. If focus is on the first item of a row, move focus to the last item of the previous row. If focus is on the first item, do nothing.
`RIGHT`	If focus is on an item, move focus one item to the right. If focus is on the last item of a row, move focus to the first item of the next row. If focus is on the last item, do nothing.
`UP`	If focus is on an item, move focus to the item above. If focus is on the first item of a column, do nothing.
`DOWN`	If focus is on an item, move focus to the item below. If focus is on the last item of a column, do nothing.
`PAGE UP`	If focus is on an item, move focus up by page size. Note Page size can be set by apps; default page size is 5 rows. If there are less items available than page size, move focus to the first item. If focus is on the first item, do nothing.
`PAGE DOWN`	If focus is on an item, move focus down by page size. Note Page size can be set by apps; default page size is 5 rows. If there are less items available than page size, move focus to the first item. If focus is on the last item, do nothing.
`ALT` + `PAGE UP`	If focus is on an item, move focus left by page size. Note Page size can be set by apps; default page size is 5 columns. If there are less items available than page size, move focus to the first item. If focus is on the first item, do nothing.
`ALT` + `PAGE DOWN`	If focus is on an item, move focus right by page size. Note Page size can be set by apps; default page size is 5 columns. If there are less items available than page size, move focus to the first item. If focus is on the first item, do nothing.
`HOME`	If focus is on an item, move focus to the first item on the same row. If focus is on the first item of a row, move focus to the first item.
`END`	If focus is on an item, move focus to the last item of the same row. If focus is on the last item of a row, move focus to the last item.
`CTRL` + `HOME`	If focus is on an item, move focus to the first item of the same column. If focus is on the first item of a column, move focus to the first item.
`CTRL` + `END`	If focus is on an item, move focus to the last item of the same column. If focus is on the last item of a column, move focus to the last item.