Choose from list button doesn't load textbox when I intercept CFL event

Greetings,

When the user clicks on the button just to the right of the "owner" field on an invoice, I need to find out what owner (hr employee) was selected. I am doing this successfully with the following code:

        <B1Listener(BoEventTypes.et_CHOOSE_FROM_LIST, False)> _
        Public Overridable Sub OnAfterChooseFromList(ByVal pVal As ItemEvent)
            Dim ActionSuccess As Boolean = pVal.ActionSuccess
            Dim form As Form = B1Connections.theAppl.Forms.Item(pVal.FormUID)
            Dim item As Item = form.Items.Item("225")
            Dim button As Button = CType(item.Specific, Button)

            Dim item2 As Item = form.Items.Item("38")
                Dim item3 As Item = form.Items.Item("222") 'document owner
                Dim Matrix As Matrix = CType(item2.Specific, Matrix)
                Dim userID As String

                userID = ChooseFromList_Value(pVal, item3)

        End Sub


    Friend Function ChooseFromList_Value(ByVal zpVal As SAPbouiCOM.ItemEvent, ByVal z_itmOwner As SAPbouiCOM.Item) As String

        Dim rtnVal As String

        Dim oCFLEvento As SAPbouiCOM.IChooseFromListEvent
        Dim ownerName As SAPbouiCOM.EditText = z_itmOwner.Specific

        oCFLEvento = zpVal
        If Not oCFLEvento.SelectedObjects Is Nothing Then
            Dim oDataTable As SAPbouiCOM.DataTable = oCFLEvento.SelectedObjects

            If oDataTable.Rows.Count <> 0 Then
                Try
                    rtnVal = oDataTable.GetValue(0, 0)
                    ownerName.Value = oDataTable.GetValue(1, 0) & ", " & oDataTable.GetValue(2, 0)
                Catch ex As Exception
                End Try
            End If
        End If

        Return rtnVal
end function

The problem is that after I retrieve the information and control returns to the form, the new value is NOT loaded into the owner field, as it normally would. I thought perhaps I needed to load the user (owner's) name into the edittext field, which works, but the associated user ID (key) is not set and I don't know how to do it.

Shouldn't B1 load that field for me even though I retrieving the value? Is there a way to set both the name and the ID?

Thanks!