Question

I have a function that looks like this:

public UpdateRecord(MyObjectModel TheObject, int TheUserID)
{
  using (MyDataContextModel TheDC = new MyDataContextModel())
  {
     var TheObjectInDB = (from o in TheDC.TheObjects
                          where o.ObjectID == TheObject.ObjectID
                          select new MyObjectModel()).SingleOrDefault();

     if (TheObject.Prop1 != null) { TheObjectInDB.Prop1 = TheObject.Prop1; }
     if (TheObject.Prop2 != null) { TheObjectInDB.Prop2 = TheObject.Prop2; }

     TheDC.SubmitChanges();
  }
}

The code is not crashing but it’s not updating the DB. What do I need to change?

Answer 1

select o instead of new MyObjectMode(), Modify:

var TheObjectInDB = (from o in TheDC.TheObjects
                          where o.ObjectID == TheObject.ObjectID
                          select o).SingleOrDefault();