/// <summary>
 /// Deprecated Method for adding a new object to the Item2ExtraID EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToItem2ExtraID(Item2ExtraID item2ExtraID)
 {
     base.AddObject("Item2ExtraID", item2ExtraID);
 }
 /// <summary>
 /// Create a new Item2ExtraID object.
 /// </summary>
 /// <param name="id">Initial value of the Id property.</param>
 /// <param name="itemID">Initial value of the ItemID property.</param>
 /// <param name="extraID">Initial value of the ExtraID property.</param>
 public static Item2ExtraID CreateItem2ExtraID(global::System.Int32 id, global::System.Int64 itemID, global::System.Int64 extraID)
 {
     Item2ExtraID item2ExtraID = new Item2ExtraID();
     item2ExtraID.Id = id;
     item2ExtraID.ItemID = itemID;
     item2ExtraID.ExtraID = extraID;
     return item2ExtraID;
 }