public ActionResult Destroy(IEnumerable<ProductViewModel> products)
{
using (var northwind = new NorthwindEntities())
{
//Iterate all destroyed products which are posted by the Kendo Grid
foreach (var productViewModel in products)
{
// Create a new Product entity and set its properties from productViewModel
var product = new Product
{
ProductID = (int)productViewModel.ProductID,
};
// Attach the entity
northwind.Products.Attach(product);
// Delete the entity
northwind.Products.DeleteObject(product);
}
// Delete the products from the database
northwind.SaveChanges();
//Return emtpy result
return Json(null);
}
}
public ActionResult Create(IEnumerable<ProductViewModel> products)
{
var result = new List<Product>();
using (var northwind = new NorthwindEntities())
{
//Iterate all created products which are posted by the Kendo Grid
foreach (var productViewModel in products)
{
// Create a new Product entity and set its properties from productViewModel
var product = new Product
{
ProductName = productViewModel.ProductName,
UnitPrice = productViewModel.UnitPrice,
UnitsInStock = productViewModel.UnitsInStock,
Discontinued = productViewModel.Discontinued
};
// store the product in the result
result.Add(product);
// Add the entity
northwind.Products.AddObject(product);
}
// Insert all created products to the database
northwind.SaveChanges();
// Return the inserted products - the Kendo Grid needs their ProductID which is generated by SQL server during insertion
return Json(result.Select(p => new ProductViewModel
{
ProductID = p.ProductID,
ProductName = p.ProductName,
UnitPrice = p.UnitPrice,
UnitsInStock = p.UnitsInStock,
Discontinued = p.Discontinued
})
.ToList());
}
}
/// <summary>
/// Deprecated Method for adding a new object to the Products EntitySet. Consider using the .Add method of the associated ObjectSet<T> property instead.
/// </summary>
public void AddToProducts(Product product)
{
base.AddObject("Products", product);
}
/// <summary>
/// Create a new Product object.
/// </summary>
/// <param name="productID">Initial value of the ProductID property.</param>
/// <param name="productName">Initial value of the ProductName property.</param>
/// <param name="discontinued">Initial value of the Discontinued property.</param>
public static Product CreateProduct(global::System.Int32 productID, global::System.String productName, global::System.Boolean discontinued)
{
Product product = new Product();
product.ProductID = productID;
product.ProductName = productName;
product.Discontinued = discontinued;
return product;
}
public ActionResult Update(IEnumerable<ProductViewModel> products)
{
using (var northwind = new NorthwindEntities())
{
//Iterate all updated products which are posted by the Kendo Grid
foreach (var productViewModel in products)
{
// Create a new Product entity and set its properties from productViewModel
var product = new Product
{
ProductID = (int)productViewModel.ProductID,
ProductName = productViewModel.ProductName,
UnitPrice = productViewModel.UnitPrice,
UnitsInStock = productViewModel.UnitsInStock,
Discontinued = productViewModel.Discontinued
};
// Attach the entity
northwind.Products.Attach(product);
// Change its state to Modified so Entity Framework can update the existing product instead of creating a new one
northwind.ObjectStateManager.ChangeObjectState(product, EntityState.Modified);
}
// Save all updated products to the database
northwind.SaveChanges();
//Return emtpy result
return Json(null);
}
}