Hey,

You do know what it is, as you have just checked the type of the Control that is being passed through, so you can cast it to that type:

Code:
For i As Integer = 1 To NumOfDays
            If TypeOf pctrlWhatControl Is ListBox Then
                Dim tempListBox As ListBox = DirectCast(pctrlWhatControl, ListBox)
                tempListBox.Items.Add()
            ElseIf TypeOf pctrlWhatControl Is ComboBox Then
                Dim temComboBox As ComboBox = DirectCast(pctrlWhatControl, ComboBox)
                temComboBox.Items.Add()
            End If
        Next
Or am I missing something?

Gary