vb.net ldap query departmentnumber not working

I am attempting to write a list of users that are assigned to a specific departmentnumber in LDAP, which i know should be a list of about 100.  The below code only pulls back one member (which last name starts with T so in my mind it seems like its only returning the last value):

Dim userIds As IEnumerable(Of String) = {"7871"}
        For Each i As String In userIds
            Dim de As New DirectoryEntry("LDAP://test.net:389/DC=test,DC=net")
            Dim LdapFilter As String = "(departmentNumber=" & i & ")"
            Dim searcher As New DirectorySearcher(de, LdapFilter)
            Dim result As SearchResult = searcher.FindOne()
            Dim res As SearchResultCollection = searcher.FindAll()
            Dim item As ListViewItem = ListView1.Items.Add(i)
            item.SubItems.Add(result.Properties("givenName")(0).ToString())
            item.SubItems.Add(result.Properties("cn")(0).ToString())
            item.SubItems.Add(result.Properties("userPrincipalName")(0).ToString())
                next

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derek7467Asked:
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CodeCruiserCommented:
You are using FindOne method which returns you a single user. You need to looping through your res variable as that's a collection of search results.
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derek7467Author Commented:
How would i do that?
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CodeCruiserCommented:
Try

Dim userIds As IEnumerable(Of String) = {"7871"}
        For Each i As String In userIds
            Dim de As New DirectoryEntry("LDAP://test.net:389/DC=test,DC=net")
            Dim LdapFilter As String = "(departmentNumber=" & i & ")"
            Dim searcher As New DirectorySearcher(de, LdapFilter)
            Dim result As SearchResult
            Dim res As SearchResultCollection = searcher.FindAll()
          For Each Result In Res
            Dim item As ListViewItem = ListView1.Items.Add(i)
            item.SubItems.Add(result.Properties("givenName")(0).ToString())
            item.SubItems.Add(result.Properties("cn")(0).ToString())
            item.SubItems.Add(result.Properties("userPrincipalName")(0).ToString())
          Next
      next

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derek7467Author Commented:
worked perfect, thanks!

I dont like to just take the work and not understand so it looks like you cycle through the department code pull everyone back and then for each entry pulled back you cycle through again and pull properties for each, do i have that right?
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CodeCruiserCommented:
Yes that's correct.
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