Use the CellSpacing property to control the spacing between adjacent cells in a data listing control. This spacing is applied both vertically and horizontally. The cell spacing is uniform for the entire data listing control. Individual cell spacing between each row or column cannot be specified.
If you set this property to a value greater than 0 and set the GridLines property to a value that displays the cell borders, a gap is displayed between the borders of adjacent cells. In this situation, the CellSpacing property controls the size of the gap.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)