The user can select only a single cell at a time.
The user can select contiguous blocks of cells.
The user can select non-contiguous rows by ctrl+clicking.
The user can select multiple ranges by ctrl+clicking and dragging the mouse.
The user cannot select cells using the mouse or keyboard.
The user can select a single row at a time.
The user can select contiguous rows.
Specifies constants that define the selection behavior.