Save and read xml file into linq database in column xml data type using linqdatacontext

I have this sql table Which I using in Datacontext in aplication

   CREATE TABLE dbo.Txml(
   brRacuna int NULL,
   korisnickoime varchar(50) NULL,
   xmldata xml NULL
   )

I have xml file which have this look

     <ProizvodUkorpi>
      <proizvod>
       <naziv>fff</naziv>
     <kolicina>2</kolicina>
      <cena>567</cena>
       <iznos>1134</iznos>
       </proizvod>
     <proizvod>
      <naziv>cam</naziv>
      <kolicina>1</kolicina>
        <cena>678</cena>
       <iznos>678</iznos>
        </proizvod>
       <proizvod>
      <naziv>alarm</naziv>
      <kolicina>2</kolicina>
      <cena>3456</cena>
      <iznos>6912</iznos>
      </proizvod>
      </ProizvodUkorpi>

I want to save and read this xml file into linq database table into column xmldata which is xml data type

How I can do that using datacontext and fuction insertonsubmit and submitchanges, I hope someone can help me