How do I avoid a memory leak with LINQ-To-SQL?

Question

I have been having some issues with LINQ-To-SQL around memory usage. I\'m using it in a Windows Service to do some processing, and I\'m looping through a large amount of da

Answer 1

Thanks guys - I will check out the ClearCache method. Just for clarification (for future readers), the situation in which I was getting the memory usuage was something like this:

using(DataContext context = new DataContext())
{
   while(true)
   {
      int skipAmount = 0;
      var rows = context.tables.Select(x => x.Dept == "Dept").Skip(skipAmount).Take(100);

      //break out of loop when out of rows

      foreach(table t in rows)
      {
         //make changes to t   
      }

      context.SubmitChanges();
      skipAmount += rows.Count();

      rows.Clear();
      rows = null;

      //at this point, even though the rows have been cleared and changes have been
      //submitted, the context is still holding onto a reference somewhere to the
      //removed rows.  So unless you create a new context, memory usuage keeps on growing
   }
}