Public Overrides Function GetTag( _
   ByVal row As Integer, _
   ByVal column As Integer _
) As Object

Dim instance As GroupDataModel
Dim row As Integer
Dim column As Integer
Dim value As Object
 
value = instance.GetTag(row, column)

public override object GetTag( 
   int row,
   int column
)

FarPoint.Web.Spread.Model.GroupDataModel gm; 
if ((FpSpread1.ActiveSheetView.DataModel) is FarPoint.Web.Spread.Model.GroupDataModel) { 
     gm = FpSpread1.ActiveSheetView.DataModel; 
     gm.SetTag(0, 0, FpSpread1.ActiveSheetView.Cells(0, 0).Text.ToString()); 
     string msg = gm.GetTag(0, 0); 
     Response.Write("alert('" + msg + "')"); 
}

Dim gm As FarPoint.Web.Spread.Model.GroupDataModel
If TypeOf (FpSpread1.ActiveSheetView.DataModel) Is FarPoint.Web.Spread.Model.GroupDataModel Then
    gm = FpSpread1.ActiveSheetView.DataModel
    gm.SetTag(0, 0, FpSpread1.ActiveSheetView.Cells(0, 0).Text.ToString())
    Dim msg As String = gm.GetTag(0, 0)
    Response.Write("alert('" & msg & "')")
End If