partial void DeleteFileVersion(FileVersion instance);
 partial void UpdateFileVersion(FileVersion instance);
		private void detach_FileVersions(FileVersion entity)
		{
			this.SendPropertyChanging();
			entity.File = null;
		}
 partial void InsertFileVersion(FileVersion instance);
		private void attach_FileVersions(FileVersion entity)
		{
			this.SendPropertyChanging();
			entity.File = this;
		}