private {0}Collection _{2}s = null;
	
		/// <summary>
		/// Refreshes the collection of {2}s from the underlying dataset
		/// </summary>
		internal void refresh{2}s()
		{
			if (_{2}s == null) _{2}s = new {0}Collection();
			
			((IList)_{2}s).Clear();

			DataRow[] cr = row.GetChildRows("{1}{3}");
			foreach( DataRow chld in cr)
			{
				{0} obj = new {0}(base.DataContext, chld);
				_{2}s.Add( obj );
			}
			
			// add after, so that events wont be fired
			_{2}s.Parent = this;
		}