Selection cell format implementation
stringGets or Sets the background for selected cells.
numberGets or Sets the bottom margin for selected cells.
numberGets or Sets the left margin for selected cells.
numberGets or Sets the preferred width for selected cells.
WidthTypeGets or Sets the preferred width type for selected cells.
numberGets or Sets the right margin for selected cells.
numberGets or Sets the top margin for selected cells.
CellVerticalAlignmentGets or sets the vertical alignment of the selected cells.