The active cell is the single active cell within the current selection. To retrieve the entire selection, use the RangeSelection property.
To set the active cell, use the IRange.Activate() method.
Requirements
Platforms: Windows 2000, Windows XP, Windows Vista, Windows Server 2003 and Windows Server 2008. SpreadsheetGear 2009 requires the Microsoft .NET Framework 2.0 and supports .NET 3.0 and .NET 3.5.