示例#1
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        // THis is for testing purpoises - trying to do some kind of delegating tasks.. it's not the best approach.
        // TASK 3 - Find customers from Canada, who made orders after 1997
        private static void PrintCustomersByDateAndCountry(DateTime date, string country)
        {
            var ordersByDate    = OrdersUtils.FindOrderByDate(date);
            var ordersByCountry = OrdersUtils.FindOrderByCountry(country);

            var foundOrdersIds = ordersByDate.Select(id => id.OrderID).Intersect(ordersByCountry.Select(id => id.OrderID));
            var found          = ordersByDate.Where(o => foundOrdersIds.Contains(o.OrderID));

            var orders         = found.ToList();
            var customersFound = CustomerUtils.GetCustomersByOrdersList(orders);

            Console.WriteLine();

            foreach (var customer in customersFound)
            {
                Console.WriteLine(customer.ContactName);
            }

            Console.WriteLine();
        }
示例#2
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 // TASK 2 - Insert DB Entry
 private static void InsertCustomer(string id, string company, string name)
 {
     try
     {
         CustomerUtils.InsertCustomer(id, company, name);
         Console.WriteLine("customer {0} Added.", name);
     }
     catch (System.Data.Entity.Validation.DbEntityValidationException ex)
     {
         foreach (var validationErrors in ex.EntityValidationErrors)
         {
             foreach (var validationError in validationErrors.ValidationErrors)
             {
                 Console.WriteLine("Property: {0} Error: {1}", validationError.PropertyName, validationError.ErrorMessage);
             }
         }
     }
     catch (System.Data.Entity.Infrastructure.DbUpdateException ex)
     {
         Console.WriteLine("Cannot add entry.\n", ex.Message);
     }
 }
示例#3
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        // TASK 2 - Remove DB Entry
        private static void RemoveCustomer(string customerId)
        {
            string removedName = CustomerUtils.RemoveCustomer(customerId);

            Console.WriteLine("Removed: {0}", removedName);
        }
示例#4
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        // TASK 2 - Modify DB Entry
        private static void ModifyCustomer(string id, string name)
        {
            string modified = CustomerUtils.ModifyCustomer(id, name);

            Console.WriteLine("Modified: {0}", modified);
        }