Hi,
This should get you started although the data validation would be just as easy. The ListFillRanges are the cities you want. The code goes into ComboBox1.
Private Sub ComboBox1_Change()
If ComboBox1.Value = "California" Then
ComboBox2.ListFillRange = "N10:N11"
End If
If ComboBox1.Value = "Massachusetts" Then
ComboBox2.ListFillRange = "O10:O11"
End If
If ComboBox1.Value = "Rhode Island" Then
ComboBox2.ListFillRange = "P10:P11"
End If
End Sub
You could also use SELECT/CASE arguments.
HTH
Steve
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