Accessing a series of Field names in a dataset sequentially using a for next loop.

I have the following code

 If Not Convert.ToBoolean(dsMT.MT_Work(X).SC1_Ovr) Then
                If Not dsMT.MT_Work(X).SCode1 = "" Or Not IsDBNull(dsMT.MT_Work(X).SCode1) Then
                    dsMT.MT_Work(X).SC1_Pay = Me.CalcSCode_Rate(dsMT.MT_Work(X).SCode1, dsMT.MT_Work(X).ComplDate)
                Else
                    dsMT.MT_Work(X).SC1_Pay = 0
                End If
End If

I have twelve of thes fields inwhich I need to perform the same operation

Instead of cutting/Pasting and editing I would like to be able to use a for next loop to specify the FieldName

For Y = 1 to 12

SCY_Ovr = "Blah Blah Blah"

Next