Outlook Type Address Book in C#, LINQ, XML with Menu and ToolBar

<?xml version="1.0" encoding="utf-8"?>
<AddressData>
  <Address>
    <FirstName>John</FirstName>
    <LastName>Doe</LastName>
    <Address1> Houston</Address1>
    <Address2></Address2>
    <Email>123@gmail.com</Email>
    <City>Houston</City>
    <State>TX</State>
    <Country>US</Country>
    <Zip>77082</Zip>
    <Phone1>281-000-1234</Phone1>
    <Phone2>123456789</Phone2>
  </Address>
  <Address>
    <FirstName>Sam</FirstName>
    <LastName>Birth</LastName>
    <Address1> Austin</Address1>
    <Address2>Weller Street</Address2>
    <Email>testing@gmail.com</Email>
    <City>Houston</City>
    <State>TX</State>
    <Country>US</Country>
    <Zip>77082</Zip>
    <Phone1>281-456-7899</Phone1>
    <Phone2>123456789</Phone2>
  </Address>
  <Address>
    <FirstName>na</FirstName>
    <LastName>ss</LastName>
    <Email>no@gmail.com</Email>
    <Address1></Address1>
    <Address2></Address2>
    <City></City>
    <Country></Country>
    <Zip></Zip>
    <Phone1>ss</Phone1>
    <Phone2></Phone2>
    <State></State>
  </Address>
</AddressData>