static void Main(string[] args)
{
using (var firstContext = new NorthwindEntities())
{
using (var secondContext = new NorthwindEntities())
{
firstContext.Customers.Add(new Customer { CustomerID = 5000, CompanyName = "CONFLICTTEST" });
secondContext.Customers.Add(new Customer {CustomerID = 6000, CompanyName = "CONFLICTTEST2"});
secondContext.SaveChanges();
firstContext.SaveChanges();
secondContext.SaveChanges();
}
}
}
public void AddCustomer(Customer customer)
{
using (var context = new NorthwindEntities())
{
context.Customers.Add(customer);
context.SaveChanges();
}
}
public void DeleteCustomerById(int id)
{
using (var context = new NorthwindEntities())
{
var customer = context.Customers.FirstOrDefault(c => c.CustomerID == id);
context.Customers.Remove(customer);
context.SaveChanges();
}
}
public Customer RemoveCustomer(Customer customer)
{
using (var context = new NorthwindEntities())
{
context.Customers.Remove(customer);
context.SaveChanges();
}
return customer;
}
public Customer ModifyCostomer(int id, string companyName)
{
using (var context = new NorthwindEntities())
{
var customer = context.Customers.SingleOrDefault(x => x.CustomerID == id);
if (customer!=null)
{
customer.CompanyName = companyName;
}
context.SaveChanges();
return customer;
}
}
public static void AddOrder(string shipName, short amount, int productID, decimal unitPrice, float discount)
{
using (NorthwindEntities dbContent = new NorthwindEntities())
{
using (TransactionScope scope = new TransactionScope())
{
try
{
Order newOrder = new Order { ShipName = shipName };
dbContent.Orders.Add(newOrder);
dbContent.SaveChanges();
var result = dbContent.Orders.Where(x => x.ShipName == shipName);
using (NorthwindEntities dbContext = new NorthwindEntities())
{
foreach (var item in result)
{
Order_Detail newDetail = new Order_Detail
{
OrderID = item.OrderID,
ProductID = productID,
UnitPrice = unitPrice,
Discount = discount,
Quantity = amount,
};
dbContext.Order_Details.Add(newDetail);
dbContext.SaveChanges();
}
}
scope.Complete();
}
catch (Exception e)
{
throw e;
}
}
}
}