Public Function GetAggregateValue( _
   ByVal column As Integer _
) As Object

Dim instance As ColumnFooter
Dim column As Integer
Dim value As Object
 
value = instance.GetAggregateValue(column)

public object GetAggregateValue( 
   int column
)

object o;
o = FpSpread1.ActiveSheetView.ColumnFooter.GetAggregateValue(0);
string msg = ("The aggregate for the column is " + o.ToString());
Response.Write("<script language='javascript'>alert('" + msg + "')</script>");

Dim o As Object
o = FpSpread1.ActiveSheetView.ColumnFooter.GetAggregateValue(0)
Dim msg As String = "The aggregate for the column is " + o.ToString()
Response.Write("<script language='javascript'>alert('" & msg & "')</script>")