ASP.NET How to edit a Listview row in a formview

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ASP.NET

Hi
I have a listview that displays data programiticaly and I added the formview using a linqDataSource to be able to edit the selected row in the listview(current listview shows only a few fields) but the user should be able to edit all the data in the formview. problem is i cant get the formview to display/edit data of the selected field...always displays the default row kinldy help.

he is my code behind:

protected void ListView1_ItemEditing1(object sender, ListViewEditEventArgs e)
   {

       String itemID = ListView1.DataKeys[e.NewEditIndex].Value.ToString();
       myItemsData.SelectParameters["MyItemID"].DefaultValue = itemID;
       FormView1.ChangeMode(FormViewMode.Edit);
       FormView1.DataBind();

   }