Returns a Boolean value that indicates whether the column at the specified index is selected.
The index into the
tableColumns array that represents the column to test.
YES if the column at
columnIndex is selected, otherwise
Selecting Columns and Rows
The index of the last selected column (or the last column added to the selection).
The index of the last selected row (or the last row added to the selection).
Deselects the row at the specified index if it’s selected.
Returns a Boolean value that indicates whether the row at the specified index is selected.
Selects all rows or all columns, according to whether rows or columns were most recently selected.
Deselects all selected rows or columns if empty selection is allowed; otherwise does nothing.