Convert.ToUInt64 (Object) converts object to a 64-bit unsigned integer.
Class Sample Public Shared Sub Main() Dim values() As Object = { True, -12, 163, 935, "x"c, #5/12/2009#, _ "1.00e2", "One", 1.00e2, 16.3e42} Dim result As ULong For Each value As Object In values Try result = Convert.ToUInt64(value) Console.WriteLine(result) Catch e As Exception Console.WriteLine("Exception") End Try Next End Sub End Class