public void removeManager(Manager manager)
 {
     lock (this)
     {
         try
         {
             Prem.RemoveRange(manager.store_permission);
             managers.Remove(manager);
             SaveChanges();
         }
         catch (Exception e)
         {
         }
     }
 }
 internal void tearDown()
 {
     try
     {
         dataUsers.RemoveRange(dataUsers.ToList());
         adminUsers.RemoveRange(adminUsers.ToList());
         states.RemoveRange(states.ToList());
         statistics.RemoveRange(statistics.ToList());
         productInCarts.RemoveRange(productInCarts.ToList());
         membersShoppingBaskets.RemoveRange(membersShoppingBaskets.ToList());
         membersShoppingCarts.RemoveRange(membersShoppingCarts.ToList());
         appointers.RemoveRange(appointers.ToList());
         Prem.RemoveRange(Prem.ToList());
         managers.RemoveRange(managers.ToList());
         products.RemoveRange(products.ToList());
         addresses.RemoveRange(addresses.ToList());
         BidsManager.RemoveRange(BidsManager.ToList());
         transactionStatuses.RemoveRange(transactionStatuses.ToList());
         deliveryStatuses.RemoveRange(deliveryStatuses.ToList());
         purchasedProducts.RemoveRange(purchasedProducts.ToList());
         productHistoryDatas.RemoveRange(productHistoryDatas.ToList());
         paymentStatuses.RemoveRange(paymentStatuses.ToList());
         stores.RemoveRange(stores.ToList());
         PurchasePolicy.RemoveRange(PurchasePolicy.ToList());
         categories.RemoveRange(categories.ToList());
         marketRulesRequestType1.RemoveRange(marketRulesRequestType1.ToList());
         marketRulesRequestType2.RemoveRange(marketRulesRequestType2.ToList());
         marketRulesRequestType3.RemoveRange(marketRulesRequestType3.ToList());
         marketRulesRequestType4.RemoveRange(marketRulesRequestType4.ToList());
         marketRulesRequestType5.RemoveRange(marketRulesRequestType5.ToList());
         marketRulesRequestType6.RemoveRange(marketRulesRequestType6.ToList());
         marketRulesRequestType7.RemoveRange(marketRulesRequestType7.ToList());
         marketRulesRequestType8.RemoveRange(marketRulesRequestType8.ToList());
         SaveChanges();
     }
     catch (Exception e)
     {
     }
 }