示例#1
0
		public void TestMethod4()
		{
			var context = new NorthwindDataContext(conn);
			var city = "London";
			var c = context.Customers
				.Select(x => new { Name = x.ContactName, Phone = x.Phone, Location = new { City = x.City, Country = x.Country } })
				.Where(x => x.Location.City == city)
				.ToList();
		}
		public void Setup()
		{
			db = new NorthwindDataContext(new SqlConnection(ConfigurationManager.ConnectionStrings["NorthwindDB"].ConnectionString));

			Customers = db.Customers.ToList();
			Employees = db.Employees.ToList();
			Orders = db.Orders.ToList();
			Products = db.Products.ToList();
		}
示例#3
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		public void TestMethod5()
		{
			var context = new NorthwindDataContext(conn);
			var query =
				from c in context.Customers
				where c.Id == "ALFKI"
				join o in context.Orders on c.Id equals o.CustomerID
				select new { c.ContactName, o.OrderDate };
			query.ToList();
		}
示例#4
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		public void TestMethod6()
		{
			var context = new NorthwindDataContext(conn);
			var query =
				from c in context.Customers
				where c.Id == "ALFKI"
				from o in context.Orders.Where(o => o.CustomerID == c.Id).DefaultIfEmpty()
				select new { c.ContactName, o.OrderDate };
			query.ToList();
		}
示例#5
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		public void TestMethod19()
		{
			var context = new NorthwindDataContext(conn);
			var query = context.Orders
			  .OrderByDescending(o => o.Freight * o.Id)
			  .Select(o => new { o.Id, o.CustomerID })
			  .Select(o => new { id = o.Id, custid = o.CustomerID });
			query.ToList();
		}
示例#6
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		public void TestMethod11()
		{
			var context = new NorthwindDataContext(conn);
			var query =
			  from p in context.Products
			  join s in context.Suppliers on p.Supplier.Id equals s.Id
			  select new { p.ProductName, s.ContactName, s.Phone };

			query.ToList();
		}
示例#7
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		public void TestMethod3()
		{
			var context = new NorthwindDataContext(conn);
			var c = context.Orders.ToList();
		}
示例#8
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		public void TestMethod2()
		{
			var context = new NorthwindDataContext(conn);
			var c = context.Customers.ToList();
		}
示例#9
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		public void TestMethod24()
		{
			var context = new NorthwindDataContext(conn);
			var query =
				from o in context.Orders
				where o.CustomerID == "SAVEA"
				orderby o.Id
				select new
				{
					o.Id,
					o.CustomerID,
					o.Freight,
					o.EmployeeID,
					TotalCount = PartitionedAggregates.Count(),
					TotalFreight = PartitionedAggregates.Sum(o.Freight),
					AverageFreightBy = PartitionedAggregates.Average(o.Freight, o.EmployeeID),
					FirstOrder = PartitionedAggregates.Min(o.OrderDate),
					LastShipByEmployee = PartitionedAggregates.Max(o.OrderDate, o.EmployeeID),
				};
			var list = query.ToList();
		}
示例#10
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		public void TestMethod23()
		{
			var context = new NorthwindDataContext(conn);
			var query =
				from c in context.Customers
				orderby c.Id
				select new
				{
					c.Id,
					c.Region,
					TotalCount = PartitionedAggregates.Count(),
					CountByStore = PartitionedAggregates.Count(c.Region),
					RowNumber = PartitionedAggregates.RowNumber(c.Id),
					Rank = PartitionedAggregates.Rank(c.PostalCode, c.Region),
				};
			var list = query.ToList();
		}
示例#11
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		public void TestMethod22()
		{
			var context = new NorthwindDataContext(conn);
			var query = context.Orders
			  .Select(o => o.Customer);
			query.ToList();
		}
示例#12
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		public void TestMethod10()
		{
			var context = new NorthwindDataContext(conn);
			var query =
				from c in context.Customers
				let x = "Test"
				let y = c.Phone
				where c.Id == "ALFKI"
				select new { x, y, c.PostalCode, c };
			query.ToList();
		}
示例#13
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		public void TestMethod18()
		{
			var context = new NorthwindDataContext(conn);
			var query = context
				.Orders
				.OrderBy(o => o.Customer.ContactName)
				.ThenBy(o => o.Employee.LastName)
				.Select(o => new { o.Id, o.Customer.ContactName, o.Employee.LastName });
			query.ToList();
		}
示例#14
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		public void TestMethod15()
		{
			var context = new NorthwindDataContext(conn);
			var query =
				from c in context.Customers.OrderBy(c => c.ContactName)
				from o in context.Orders.OrderBy(o => o.OrderDate)
				where c.Id == o.CustomerID
				select new { c.ContactName, o.OrderDate };

			var list = query.ToList();
			var resorted = list.OrderBy(x => x.ContactName).ThenBy(x => x.OrderDate).ToList();
			Assert.IsTrue(list.SequenceEqual(resorted));
		}
示例#15
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		public void TestMethod14()
		{
			var context = new NorthwindDataContext(conn);
			var query = (
			  from o in context.Orders
			  from d in o.OrderDetails.Take(o.Id)
			  select new
			  {
				  order = o,
				  details = d,
			  }).Take(5);

			var list = query.ToList();
			Assert.IsTrue(list.Count <= 5);
		}
示例#16
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		public void TestMethod13()
		{
			var context = new NorthwindDataContext(conn);
			var query = context.Orders.Take(3);

			var list = query.ToList();
			Assert.IsTrue(list.Count <= 3);
		}
示例#17
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		public void TestMethod12()
		{
			var context = new NorthwindDataContext(conn);
			var query =
			  from o in context.Orders
			  select new
			  {
				  o.Freight,
				  AwayFromZero = Math.Round(o.Freight, 1, MidpointRounding.AwayFromZero),
				  ToEven = Math.Round(o.Freight, 1, MidpointRounding.ToEven)
			  };

			query.ToList();
		}
示例#18
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		public void TestMethod20()
		{
			var context = new NorthwindDataContext(conn);
			var query = context.Orders
			  .OrderBy(o => new { o.Customer.ContactName, x = new { o.Customer, o } })
			  .Select(o => new { id = o.Id, custid = o.CustomerID });
			query.ToList();
		}
示例#19
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		public void TestMethod9()
		{
			var context = new NorthwindDataContext(conn);
			var query =
				from o in context.Orders
				where o.Customer.Id == "ALFKI"
				select new { o.Customer.ContactName, o.OrderDate };
			query.ToList();
		}