Dynamically adding column values based on combo box selection - excel

Question

I need your help. It seems what I have written in code does not accomplish what I am trying to do here.
The objective would be to have 2 userform combo boxes one for the (floor) values which are manually added once [3,4,5] and the other combo boxes (offices) in which values are dynamically added based on the selection made in the floor selection box.
Let's say for example that if I chose the value [3] in my floor combo box that the office combo box would contain the following values:
A-01
A-02
A-03
A-04
A-05
A-06
A-07
A-08
I thought this code would work but it doesn't:
'Cells(row, col)
Private Sub floor_Change()
lRow = Sheets("Office Spaces").UsedRange.Rows.Count
With Sheets("Office Spaces")
For i = 2 To lRow
If .Cells(i, 1).Value = UserForm1.floor.Value Then
UserForm1.office.AddItem .Cells(i, 2).Value
End If
Next i
End With
End Sub
Here's what the data looks in my excel sheet:

Answer 1

'Cells(row, col)
Private Sub floor56_Change()
UserForm1.office.Clear
Dim sh
Dim rw
Set sh = Sheets("Office Spaces")
For Each rw In sh.Rows
If sh.Cells(rw.row, 1).Text = UserForm1.floor.Value Then
UserForm1.office.AddItem (sh.Cells(rw.row, 2).Value)
End If
Next rw
End Sub
or
Private Sub floor_Change()
If UserForm1.floor.Value <> "" Then
UserForm1.office.Clear
Dim ws
Set ws = ThisWorkbook.Worksheets("Office Spaces")
Dim rng
Set rng = ws.Range("A:A")
For Each cell In rng
If cell.Text = UserForm1.floor.Value Then
UserForm1.office.AddItem (cell.Offset(0, 1).Value)
End If
Next cell
End If
End Sub