private void detach_UsersTransferFiles(UsersTransferFile entity)
 {
     this.SendPropertyChanging();
     entity.User = null;
 }
 partial void DeleteUsersTransferFile(UsersTransferFile instance);
 partial void InsertUsersTransferFile(UsersTransferFile instance);
 partial void UpdateUsersTransferFile(UsersTransferFile instance);
 private void attach_UsersTransferFiles(UsersTransferFile entity)
 {
     this.SendPropertyChanging();
     entity.TransferFile = this;
 }