Bug? Variable Not Used Bug

[JohnC]

In an Activity_Create I have this declaration:

Dim DT As Int

And later in this same sub I have this code that uses the DT variable:

Select Case Blacktop.CommJob.JobAction

        Case Blacktop.ActionTypes.Hot_Patching, _
           Blacktop.ActionTypes.PW_Seal, _
           Blacktop.ActionTypes.PW_Touch_Up, _
           Blacktop.ActionTypes.Collect

            Select Case Blacktop.CommJob.JobAction
                Case Blacktop.ActionTypes.Two_Day_Job,Blacktop.ActionTypes.Three_Day_Job
                    Select Case Blacktop.CommJob.JobAction
                        Case Blacktop.ActionTypes.Four_Day_Job
                            DT = 4
                        Case Blacktop.ActionTypes.Three_Day_Job
                            DT = 3
                        Case Else
                            DT = 2
                    End Select

But yet the IDE reports a "Unused Variable 'DT' (warning #9)" for the declaration line at the top.

 

[Erel]

The variable is only assigned a value. It is not used. You can remove the declaration with the assignments and the program behavior will not change. The warning is correct.