public IHttpActionResult PutProduct(int id, Product product)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != product.ProductID)
{
return(BadRequest());
}
db.Entry(product).State = EntityState.Modified;
try
{
db.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
if (!ProductExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(StatusCode(HttpStatusCode.NoContent));
}
public IHttpActionResult PutCustomer(string id, Customer customer)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != customer.CustomerID)
{
return(BadRequest());
}
db.Entry(customer).State = EntityState.Modified;
try
{
db.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
if (!CustomerExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(StatusCode(HttpStatusCode.NoContent));
}
[HttpPost]//接收USER輸入的新增資料
public ActionResult Insert()
{
Categories _category = new Categories();
_category.CategoryName = Request.Form["CategoryName"];
_category.Description = Request.Form["Description"];
db.Entry(_category).State = EntityState.Added;
db.SaveChanges();
return(RedirectToAction("Index"));
}
public ActionResult Create([Bind(Include = "CustomerID,CompanyName,ContactName,ContactTitle,Address,City,Region,PostalCode,Country,Phone,Fax")] Customer customer)
{
if (ModelState.IsValid)
{
db.Customers.Add(customer);
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(customer));
}
public IHttpActionResult PostProducts(Products products)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
db.Products.Add(products);
db.SaveChanges();
return(CreatedAtRoute("DefaultApi", new { id = products.ProductID }, products));
}
public ActionResult Create([Bind(Include = "ProductID,ProductName,SupplierID,CategoryID,QuantityPerUnit,UnitPrice,UnitsInStock,UnitsOnOrder,ReorderLevel,Discontinued")] Product product)
{
if (ModelState.IsValid)
{
db.Products.Add(product);
db.SaveChanges();
return(RedirectToAction("Index"));
}
ViewBag.CategoryID = new SelectList(db.Categories, "CategoryID", "CategoryName", product.CategoryID);
ViewBag.SupplierID = new SelectList(db.Suppliers, "SupplierID", "CompanyName", product.SupplierID);
return(View(product));
}
public ActionResult Create([Bind(Include = "OrderID,CustomerID,EmployeeID,OrderDate,RequiredDate,ShippedDate,ShipVia,Freight,ShipName,ShipAddress,ShipCity,ShipRegion,ShipPostalCode,ShipCountry")] Order order)
{
if (ModelState.IsValid)
{
db.Orders.Add(order);
db.SaveChanges();
return(RedirectToAction("Index"));
}
ViewBag.CustomerID = new SelectList(db.Customers, "CustomerID", "CompanyName", order.CustomerID);
ViewBag.EmployeeID = new SelectList(db.Employees, "EmployeeID", "LastName", order.EmployeeID);
ViewBag.ShipVia = new SelectList(db.Shippers, "ShipperID", "CompanyName", order.ShipVia);
return(View(order));
}
public ActionResult Update(Customers willUpdated, bool isUpdate)
{
if (!string.IsNullOrEmpty(willUpdated.CustomerID))
{
var updatedEntity = dbModel.Entry(willUpdated);
updatedEntity.State = System.Data.Entity.EntityState.Modified;
dbModel.SaveChanges();
return(RedirectToAction("Detail", new { userID = willUpdated.CustomerID, isUpdate = true }));
}
else
{
var added = dbModel.Entry(willUpdated);
added.State = System.Data.Entity.EntityState.Added;
dbModel.SaveChanges();
return(RedirectToAction("Detail", new { userID = added.Entity.CustomerID, isUpdate = false }));
}
}
public static void Main(string[] args)
{
Console.WriteLine("Hello QueryInterceptor.EntityFrameworkCore");
Console.WriteLine("Enable ExpressionOptimizer");
ExtensibilityPoint.QueryOptimizer = ExpressionOptimizer.visit;
var visitor = new EqualsToNotEqualsVisitor();
// doit
IQueryable <int> query = Enumerable.Range(0, 10).AsQueryable().Where(n => n > 0 && n % 2 == 0);
List <int> numbersEven = query.ToList();
Console.WriteLine("numbersEven > 0 = {0}", string.Join(", ", numbersEven));
List <int> numbersOdd = query.InterceptWith(visitor).Where(x => x >= 0).ToList();
Console.WriteLine("numbersOdd > 0 = {0}", string.Join(", ", numbersOdd));
var context = new NorthwindModel();
if (context.Database.EnsureCreated())
{
context.Cars.Add(new Car {
Brand = "Ford", Color = "Blue"
});
context.Cars.Add(new Car {
Brand = "Fiat", Color = "Red"
});
context.Cars.Add(new Car {
Brand = "Alfa", Color = "Black"
});
context.SaveChanges();
}
var carFirstOrDefault = context.Cars.AsQueryable().InterceptWith(visitor).Where(x => x.Color == "Blue").FirstOrDefault();
Console.WriteLine("carFirstOrDefault {0}", JsonConvert.SerializeObject(carFirstOrDefault, Formatting.Indented));
var carFirstOrDefaultAsync = context.Cars.AsQueryable().InterceptWith(visitor).Where(x => x.Color == "Blue").FirstOrDefaultAsync();
Console.WriteLine("carAsync {0}", JsonConvert.SerializeObject(carFirstOrDefaultAsync.Result, Formatting.Indented));
var carToListAsync = context.Cars.AsQueryable().InterceptWith(visitor).Where(x => x.Color == "Blue").ToListAsync();
Console.WriteLine("carToListAsync {0}", JsonConvert.SerializeObject(carToListAsync.Result, Formatting.Indented));
Console.WriteLine("Press key...");
Console.ReadLine();
}
public IHttpActionResult PutProducts(int id, Products viewModel)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
if (id != viewModel.ProductID)
{
return(BadRequest());
}
//db.Entry(viewModel).State = EntityState.Modified;
var produto = db.Products.Find();
db.Entry(produto).CurrentValues.SetValues(viewModel);
try
{
db.SaveChanges();
}
catch (DbUpdateConcurrencyException)
{
if (!ProductsExists(id))
{
return(NotFound());
}
else
{
throw;
}
}
return(StatusCode(HttpStatusCode.NoContent));
}
public void Update(Employee employee)
{
model.Employees.AddOrUpdate(employee);
model.SaveChanges();
}
public void Commit()
{
_ctx.SaveChanges();
}
public void Update(Employee employee)
{
model.Employees.AddOrUpdate(employee); // Husk using System.Data.Entity.Migrations;
model.SaveChanges();
}