The selection keys allow users to select rows or columns. Only one type of selection (rows or columns) is allowed for a table, as defined when it is created. The numbers of rows or columns that can be selected may be limited by your application's definition of the table. That is, when defining a table, you can specify the kinds of selection allowed for rows and for columns as no selection, single selection, or multiple selection. No selection disallows selection of either rows or columns, as appropriate. Single selection allows at most one row or column to be selected. Multiple selection allows one or more ranges of rows or columns to be selected. If multiple selection is set, the user can select a range of rows or columns by pressing Shift+Space to select the current row, then Shift+Down, +Up, +Left, or +Right to extend the selection to adjacent rows or columns. The user can enter or edit the contents of cells without affecting the current selection.

Note that the current cell has a dotted line around it, just inside the grid lines, and that selected rows and columns are shown in reverse video.

The following table lists mouse and keyboard selection actions.