'Declaration Public Property TopBorderStyle As Infragistics.Documents.Excel.CellBorderLineStyle
public Infragistics.Documents.Excel.CellBorderLineStyle TopBorderStyle {get; set;}
If the border style is set to a non-default value and the TopBorderColor is default (Color.Empty), it will be resolved to Color.Black.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2