public void Load()
{
bContext = new ProdContext();
bContext.Categories.Load();
this.categoryBindingSource1.DataSource = bContext.Categories.Local.ToBindingList();
}
static void Main(string[] args)
{
//string name = Console.ReadLine();
Category category = new Category
{
//Name = name
};
Category category1 = new Category
{
Name = "Category1"
};
Category category2 = new Category
{
Name = "Category2"
};
Category category3 = new Category
{
Name = "Category3"
};
Order order1 = new Order
{
Name = "Order1"
};
Product product1 = new Product
{
Name = "Product1",
CategoryId = 1
};
Product product2 = new Product
{
Name = "Product2",
CategoryId = 1
};
Product product3 = new Product
{
Name = "Product3",
CategoryId = 2
};
Product product4 = new Product
{
Name = "Product4",
CategoryId = 3
};
Product product5 = new Product
{
Name = "Product5",
CategoryId = 2
};
using (ProdContext context = new ProdContext())
{
/*context.Categories.Add(category1);
* context.Categories.Add(category2);
* context.Categories.Add(category3);*/
//context.Orders.Add(order1);
context.Products.Add(product1);
context.Products.Add(product2);
context.Products.Add(product3);
context.Products.Add(product4);
context.Products.Add(product5);
context.SaveChanges();
/*IQueryable query = from c in context.Categories
* orderby c.Name descending
* select c.Name;
*
* List<string> categoryNameList = context.Categories.OrderByDescending(c => c.Name).Select(c => c.Name).ToList();
*
* foreach (var c in query)
* {
* Console.WriteLine(c);
* }
* Console.WriteLine('\n');
*
* foreach (var c in categoryNameList)
* {
* Console.WriteLine(c);
* }
* -----------
* var queryJoin = from c in context.Categories
* join p in context.Products
* on c.CategoryId equals p.CategoryId
* select new
* {
* CategoryName = c.Name,
* ProductName = p.Name
* };
*
* foreach (var x in queryJoin)
* {
* Console.WriteLine("{0}\t{1}", x.CategoryName, x.ProductName);
* }
*
* Console.WriteLine();
*
* var queryJoin2 = context.Categories.Join(
* context.Products, p => p.CategoryId, c => c.CategoryId, (c, p) => new
* {
* CategoryName = c.Name,
* ProductName = p.Name
* });
* foreach (var x in queryJoin2)
* {
* Console.WriteLine("{0}\t{1}", x.CategoryName, x.ProductName);
* }
* --------
*
*
*
* IQueryable query = from c in context.Categories
* select c;
*
* foreach(Category c in query)
* {
* Console.WriteLine(c.Name);
* foreach (var p in c.Products)
* {
* Console.WriteLine(p.Name);
* }
* }
*
* ------
*
*
* context.Configuration.LazyLoadingEnabled = true;
* IList<Category> categories = context.Categories.ToList<Category>();
*
* foreach(Category c in categories)
* {
* Console.WriteLine(c.Name);
* foreach (Product p in c.Products)
* {
* Console.WriteLine(p.Name);
* }
* }
*
* ----
*
* IList<Category> categories = context.Categories.Include("Products").ToList();
*
* foreach(Category c in categories)
* {
* Console.WriteLine(c.Name);
* foreach(Product p in c.Products)
* {
* Console.WriteLine(p.Name);
* }
* }
* -----
*
* var query = from c in context.Categories
* join p in context.Products
* on c.CategoryId equals p.CategoryId
* select new
* {
* CategoryName = c.Name,
* ProductCount = c.Products.Count()
* };
* foreach (var a in query)
* {
* Console.WriteLine("{0} \t {1}", a.CategoryName, a.ProductCount);
* }
* ------
*
*
* var query = context.Categories.Join(
* context.Products, p => p.CategoryId, c => c.CategoryId, (c, p) => new
* {
* CategoryName = c.Name,
* ProductCount = c.Products.Count()
* });
* foreach (var x in query)
* {
* Console.WriteLine("{0}\t{1}", x.CategoryName, x.ProductCount);
* }
*
* }
* ---
*
*
* Console.WriteLine("Prosze podać nazwę zamówienia, a następnie wybrać produkty:");
*
* string orderName = Console.ReadLine();
* Order order = new Order
* {
* Name = orderName
* };
* context.Orders.Add(order);
* context.SaveChanges();
*
* var query = (from p in context.Products
* group p by p.Name into g
* select new
* {
* Name = g.Key,
* }).ToList();
* int i = 0;
* Console.WriteLine(i + ". Exit");
* foreach (var name in query)
* {
* i++;
* Console.WriteLine(i + ". " + name.Name);
* }
* while (true)
* {
* int choice = Convert.ToInt32(Console.ReadLine());
* if (choice <= 0 || choice > i) break;
*
* string name = query[choice - 1].Name;
*
* Product orderedProduct = context.Products
* .Where(product => product.Name == name)
* .Select(product => product).First();
*
* Order orderedOrder = context.Orders
* .OrderByDescending(o => o.OrderId)
* .Select(c => c).First();
*
* OrderedProduct ordered = new OrderedProduct
* {
* OrderId = orderedOrder.OrderId,
* ProductId = orderedProduct.ProductId
* };
*
* context.OrderedProducts.Add(ordered);
* context.SaveChanges();
*
*
* }
* -----------
*
* context.Configuration.LazyLoadingEnabled = true;
* var eagerOrders = context.Orders.Include("OrderedProducts").ToList();
* OrderedProduct eagerOrderedProduct = eagerOrders[0].OrderedProducts[0];
* -----------
*/
Console.WriteLine("Category form zaraz się pojawi...");
CategoryForm categoryForm = new CategoryForm();
categoryForm.ShowDialog();
Console.ReadLine();
}
}
