title: use external function in LINQ
body: <p>is it possible to use external function in linq select resault ?
  and how to pass param to it? </p>
  
  <pre><code>sub x
  Dim q = From a In contex Select New With {.z=z("MYNAME")}
  end sub
  
  function z(name as string)
  return( name &amp; "Something...")
  end function
  </code></pre>