getCountyFreqsByTag SOAP Question

[jeff2674]

What I'm trying to do is get all the police dispatch frequences for a particular county. I have it pulling down the states, then showing in another listbox the associated counties. When the user clicks a county I want it to show all the police frequencies. The getCountyFreqsByTag can do this, but i'm not sure how to implement this. I'm using VB.Net Here is my code so far.

' This code populates the listbox with all the states

   Dim clnt As MSSOAPLib30.SoapClient30
        Dim objClient As New ScannerFrequencies.com.radioreference.api.RRWsdl
        Dim testinput As ScannerFrequencies.com.radioreference.api.authInfo
        Dim testoutput As ScannerFrequencies.com.radioreference.api.StateInfo

        testinput = New ScannerFrequencies.com.radioreference.api.authInfo

        clnt = New MSSOAPLib30.SoapClient30

        testinput.appKey = "12345768"
        testinput.username = "aaaa"
        testinput.password = "bbbb"

        clnt.ClientProperty("ServerHTTPRequest") = True
        clnt.MSSoapInit("http://api.radioreference.com/soap2/?wsdl")

        For i = 1 To 50
            If i = 3 Or i = 7 Or i = 14 Or i = 43 Then
                ListBox1.Items.Add(i & "-" & "Invalid Territory")
            Else
                testoutput = objClient.getStateInfo(i, testinput)
                ListBox1.Items.Add(testoutput.stid & "-" & testoutput.stateName)

            End If
        Next

    End Sub

----------------

'This code populates a second listbox with all the counties associated with that state

 Private Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
        Dim clnt As MSSOAPLib30.SoapClient30
        Dim objClient As New ScannerFrequencies.com.radioreference.api.RRWsdl
        Dim testinput As ScannerFrequencies.com.radioreference.api.authInfo
        Dim testoutput As ScannerFrequencies.com.radioreference.api.StateInfo
        Dim tmpCountyName As Object
        Dim i As Integer

        testinput = New ScannerFrequencies.com.radioreference.api.authInfo

        clnt = New MSSOAPLib30.SoapClient30

        testinput.appKey = "12345678"
        testinput.username = aaaa"
        testinput.password = "bbbb"

        clnt.ClientProperty("ServerHTTPRequest") = True
        clnt.MSSoapInit("http://api.radioreference.com/soap2/?wsdl")


        i = ListBox1.SelectedIndex

        i = i + 1
        If i <> 3 And i <> 7 And i <> 14 And i <> 43 Then
            testoutput = objClient.getStateInfo(i, testinput)
            ListBox2.Items.Clear()

            For i = 1 To UBound(testoutput.countyList)

                tmpCountyName = testoutput.countyList(i)

                ListBox2.Items.Add(tmpCountyName.countyname)

            Next i
        End If

    End Sub

Now what I need in my third listbox is a list of all the frequencies associated with a county that the user clicks on. Can someone point me in the right direction with this?