如何配置Ambari发送SNMP通知(How to configure Ambari to send SNMP notification)

 删除记录后，清除并重新加载列表。 

For anyone that has a similar problem I figured it out. Steve helped me get on the right track here so thank you. I added the ID (primary key) subitem like this:
 
While reader.Read
            Dim ls As New ListViewItem(reader.Item("first_name").ToString() & " " & reader.Item("surname").ToString)
            ls.SubItems.Add(reader.Item("id").ToString)
            ListView1.Items.Add(ls)
 
then in the listview focused item I made the query like this:
 
Dim query As String = "SELECT * FROM contacts WHERE id = '" & ListView1.FocusedItem.SubItems(1).Text & "'"
 
Now save, update, and delete work with primary key ID reading in the correct order. Thanks for the help and I hope this helps out someone in the future