Populate multicolumn userform listbox with data only from hidden rows

[Intronaut]

I've adopted the following code from various sources. Column A's data is populating the listbox fine, with each entry populating its respective listindex, but Column B's data (which I'm trying to capture with the .list) is only acting on the first listindex. What do I change?

Private Sub UserForm_Initialize()Dim rng As Range
Dim LastRow As Long
Dim I As Long
Dim x As Integer
ListBox1.Clear
    LastRow = ActiveSheet.Range("A100000").End(xlUp).Row
    For I = 1 To LastRow
        Set rng = ActiveSheet.Range("A" & I)
        If rng.EntireRow.Hidden = True Then
            With ListBox1
                .AddItem rng.Value
                .List(0, 1) = Range("B" & I).Value
            End With
        End If
    Next I
End Sub

Hope my question is clear, and many thanks for any insights you can offer...

 

[MickG]

Try altering line below :-

 .List(.ListCount - 1, 1) = Range("B" & I).Value

 

[Intronaut]

You're absolutely heroic! Thanks so much.

 

[MickG]

You're welcome