private void searchBtn_Click(object sender, EventArgs e)
{
if (comboBox1.Text.Equals("Query All"))
{
orderBindingSource.DataSource = os1.QueryAll();
}
else if (comboBox1.Text.Equals("Query By Goods Name"))
{
if (textBox1.Text == "")
{
MessageBox.Show("Please enter a goods name!");
//orderBindingSource.DataSourceChanged += os1.QueryAll();
}
else
{
orderBindingSource.DataSource = os1.QueryByGoodsName(textBox1.Text);
}
}
else if (comboBox1.Text.Equals("Query By Total Amount"))
{
if (textBox1.Text == "")
{
MessageBox.Show("Please enter a Total Amount!");
//orderBindingSource.DataSourceChanged += os1.QueryAll();
}
else
{
float.TryParse(textBox1.Text, out float amout);
orderBindingSource.DataSource = os1.QueryByTotalAmount(amout);
}
//orderBindingSource.DataSource = os1.QueryByTotalAmount(10);
}
else if (comboBox1.Text.Equals("Query By Customer Name"))
{
if (textBox1.Text == "")
{
MessageBox.Show("Please enter a customer name!");
//orderBindingSource.DataSourceChanged += os1.QueryAll();
}
else
{
orderBindingSource.DataSource = os1.QueryByCustomerName(textBox1.Text);
}
}
}
public static void Main1()
{
try {
Customer customer1 = new Customer(1, "Customer1");
Customer customer2 = new Customer(2, "Customer2");
Goods milk = new Goods(1, "Milk", 69.9f);
Goods eggs = new Goods(2, "eggs", 4.99f);
Goods apple = new Goods(3, "apple", 5.59f);
Order order1 = new Order(1, customer1);
order1.AddDetails(new OrderDetail(apple, 8));
order1.AddDetails(new OrderDetail(eggs, 10));
// order1.AddDetails(new OrderDetail(eggs, 8));
order1.AddDetails(new OrderDetail(milk, 10));
Order order2 = new Order(2, customer2);
order2.AddDetails(new OrderDetail(eggs, 10));
order2.AddDetails(new OrderDetail(milk, 10));
Order order3 = new Order(3, customer2);
order3.AddDetails(new OrderDetail(milk, 100));
OrderService orderService = new OrderService();
orderService.AddOrder(order1);
orderService.AddOrder(order2);
orderService.AddOrder(order3);
Console.WriteLine("\n GetById");
Console.WriteLine(orderService.GetById(1));
Console.WriteLine(orderService.GetById(5) == null);
Console.WriteLine("\nGetAllOrders");
List <Order> orders = orderService.QueryAll();
orders.ForEach(o => Console.WriteLine(o));
Console.WriteLine("\nGetOrdersByCustomerName:'Customer2'");
orders = orderService.QueryByCustomerName("Customer2");
orders.ForEach(o => Console.WriteLine(o));
Console.WriteLine("\nGetOrdersByGoodsName:'eggs'");
orders = orderService.QueryByGoodsName("eggs");
orders.ForEach(o => Console.WriteLine(o));
Console.WriteLine("\nGetOrdersTotalAmount:1000");
orders = orderService.QueryByTotalAmount(1000);
orders.ForEach(o => Console.WriteLine(o));
Console.WriteLine("\nRemove order(id=2) and qurey all");
orderService.RemoveOrder(2);
orderService.QueryAll().ForEach(
o => Console.WriteLine(o));
Console.WriteLine("\n order by Amount");
orderService.Sort(
(o1, o2) => o2.TotalAmount.CompareTo(o1.TotalAmount));
orderService.QueryAll().ForEach(
o => Console.WriteLine(o));
Console.WriteLine("\n export and import orders");
orderService.Export(@".\order.xml");
List <Order> importedOrders = orderService.Import(@".\order.xml");
importedOrders.ForEach(o => Console.WriteLine(o));
}
catch (Exception e) {
Console.WriteLine(e.Message);
}
}
