private void ImportOrder_Click(object sender, EventArgs e)
{
try
{
using (var db = new OrderDB())
{
OrderService os = new OrderService();
XmlSerializer xml = new XmlSerializer(typeof(List <OrderList>));
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Title = "Open the file";
openFileDialog.Filter = "txt files(*.txt)|*.txt|All files(*.*)|*.*";
openFileDialog.AddExtension = true;
openFileDialog.CheckFileExists = true;
openFileDialog.CheckPathExists = true;
openFileDialog.DefaultExt = "*.txt|*.txt";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
FileStream fs = new FileStream(openFileDialog.FileName, FileMode.Open);
//os.ListOfOrder = (List<Order>)xml.Deserialize(fs);
foreach (OrderList order in (List <OrderList>)xml.Deserialize(fs))
{
os.Add(order);
}
fs.Close();
IQueryable <OrderList> orders = from t in db.Order select t;
var list = orders.ToList();
b.DataSource = new BindingList <OrderList>(list);
OrderbindingSource.DataSource = b;
}
}
}catch (Exception)
{
return;
}
}
public List <OrderList> QueryByClientName(string name)
{
using (var db = new OrderDB())
{
return(db.Order.Include("ListOfDetails")
.Where(o => o.ClientName.Equals(name)).ToList());
}
}
public List <OrderList> QueryByOrderId(string id)
{
using (var db = new OrderDB())
{
return(db.Order.Include("ListOfDetails")
.Where(o => o.OrderId.Equals(id)).ToList());
}
}
public OrderList GetOrder(string Id)
{
using (var db = new OrderDB())
{
return(db.Order.Include("ListOfDetails").
SingleOrDefault(o => o.OrderId == Id));
}
}
public void Add(OrderList order)
{
using (var db = new OrderDB())
{
db.Order.Add(order);
db.SaveChanges();
}
}
public List <OrderList> QueryByTotalPriceOver(long num)
{
using (var db = new OrderDB())
{
return(db.Order.Include("ListOfDetails")
.Where(o => o.TotalPrice >= num).ToList());
}
}
public List <OrderList> QueryByProductName(string name)
{
using (var db = new OrderDB())
{
var query = db.Order.Include("ListOfDetails")
.Where(o => o.ListOfDetails.Where(
detail => detail.ProductName.Equals(name)).Count() > 0);
return(query.ToList());
}
}
public void Update(OrderList order)
{
using (var db = new OrderDB())
{
db.Order.Attach(order);
db.Entry(order).State = EntityState.Modified;
order.ListOfDetails.ForEach(detail => db.Entry(detail).State = EntityState.Modified);
db.SaveChanges();
}
}
public void Delete(string orderId)
{
using (var db = new OrderDB())
{
var order = db.Order.Include("ListOfDetails").SingleOrDefault(o => o.OrderId == orderId);
//db.DetailsList.RemoveRange(order.ListOfDetails);
db.Order.Remove(order);
db.SaveChanges();
}
}
public void Export(string xmlFileName)
{
using (var db = new OrderDB())
{
XmlSerializer xmlser = new XmlSerializer(typeof(List <OrderList>));
FileStream fs = new FileStream(xmlFileName, FileMode.OpenOrCreate);
xmlser.Serialize(fs, db.Order);
fs.Close();
}
}
private void MenuTool3_Click(object sender, EventArgs e)
{
//显示所有订单
using (var db = new OrderDB())
{
IQueryable <OrderList> orders = from t in db.Order select t;
var list = orders.ToList();
b.DataSource = new BindingList <OrderList>(list);
OrderGridView.DataSource = b;
}
}
private void button1_Click(object sender, EventArgs e)
{
using (var db = new OrderDB())
{
List <OrderList> list = new List <OrderList>();
OrderService os = new OrderService();
IQueryable <OrderList> orders = from t in db.Order select t;
list = orders.ToList();
b.DataSource = new BindingList <OrderList>(list);
if (textBox1.Text != "")
{
string s = textBox1.Text;
if (comboBox2.Text == "订单号")
{
list = os.QueryByOrderId(textBox1.Text);
}
else if (comboBox2.Text == "用户名")
{
list = os.QueryByClientName(textBox1.Text);
}
else if (comboBox2.Text == "总价高于所输入值的")
{
list = os.QueryByTotalPriceOver(long.Parse(textBox1.Text));
}
else
{
list = os.QueryByProductName(textBox1.Text);
}
if (comboBox1.Text == "查询订单")
{
if (CheckListNull(list) == true)
{
OrderbindingSource.DataSource = list;
}
}
else
{
if (CheckListNull(list) == true)
{
foreach (OrderList o in list)
{
os.Delete(o.OrderId);
}
orders = from t in db.Order select t;
list = orders.ToList();
OrderbindingSource.DataSource = b;
}
}
}
}
}
private void ExportOrder_Click(object sender, EventArgs e)
{
try
{
using (var db = new OrderDB())
{
XmlSerializer xmlser = new XmlSerializer(typeof(List <OrderList>));
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Title = "Save the File";
saveFileDialog.Filter = "txt file(*.txt)|*.txt|html file(*.html)|*.html";
saveFileDialog.AddExtension = true;
saveFileDialog.CheckPathExists = true;
saveFileDialog.OverwritePrompt = true;
saveFileDialog.DefaultExt = "*.txt|*.txt";
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
//不论结果需要txt还是html，事先生成一个xml文件(txt)
string filepath = saveFileDialog.FileName;
filepath = Path.GetDirectoryName(filepath);
string filename = Path.GetFileNameWithoutExtension(saveFileDialog.FileName);
FileStream fs = new FileStream(filepath + filename + ".txt", FileMode.OpenOrCreate);
xmlser.Serialize(fs, db.Order);
fs.Close();
if (saveFileDialog.FilterIndex == 2)
{
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Load(filepath + filename + ".txt");
XPathNavigator navigator = xmlDocument.CreateNavigator();
navigator.MoveToRoot();
XslCompiledTransform xslCompiledTransform = new XslCompiledTransform();
xslCompiledTransform.Load(@"..\..\OrderList.xslt");
FileStream fileStream = File.OpenWrite(saveFileDialog.FileName);
XmlWriterSettings settings = new XmlWriterSettings();
XmlWriter xmlWriter = XmlWriter.Create(fileStream, settings);
xslCompiledTransform.Transform(navigator, null, xmlWriter);
File.Delete(filepath + filename + ".txt");
fileStream.Close();
}
}
}
}catch (Exception)
{
MessageBox.Show("您所输入的订单有误！", "输入错误！", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
}
private bool CheckListNull(List <OrderList> list)
{
if (list == null)
{
using (var db = new OrderDB())
{
MessageBox.Show("未找到相关订单。", "输入错误！", MessageBoxButtons.OK, MessageBoxIcon.Warning);
textBox1.Text = null;
OrderbindingSource.DataSource = db.Order;
return(false);
}
}
return(true);
}
// 序列化
public void Import(string xmlFileName)
{
using (var db = new OrderDB())
{
XmlSerializer xmlser = new XmlSerializer(typeof(List <OrderList>));
FileStream fs = new FileStream(xmlFileName, FileMode.Open);
//db.OrderList = (List<Order>)xmlser.Deserialize(fs);
foreach (OrderList order in (List <OrderList>)xmlser.Deserialize(fs))
{
Add(order);
}
fs.Close();
}
}
private void MenuTool1_Click(object sender, EventArgs e)
{
using (var db = new OrderDB())
{
IQueryable <OrderList> order = from t in db.Order select t;
var list = order.ToList();
AddOrderForm addOrderForm = new AddOrderForm(list);
addOrderForm.TransfEvent += AddOrderForm_Add;
addOrderForm.ShowDialog();
order = from t in db.Order select t;
list = order.ToList();
b.DataSource = new BindingList <OrderList>(list);
OrderbindingSource.DataSource = b;
}
}
private void 修改订单ToolStripMenuItem_Click(object sender, EventArgs e)
{
using (var db = new OrderDB())
{
string value = OrderGridView.Rows[OrderGridView.CurrentRow.Index].Cells[0].Value.ToString();
OrderList order = os.QueryByOrderId(value)[0];
OrderList o = os.QueryByOrderId(value)[0];
ChangeOrderForm changeOrderForm = new ChangeOrderForm(o);
changeOrderForm.ShowDialog();
os.Update(o);
IQueryable <OrderList> orders = from t in db.Order select t;
var list = orders.ToList();
b.DataSource = new BindingList <OrderList>(list);
OrderbindingSource.DataSource = b;
}
}
public IEnumerable <Order> QueryOrderbyId(string id)
{
using (var db = new OrderDB())
{
return(db.Order.Include("Items").
SingleOrDefault(o => o.Id == Id));
}
var query = orderlist.Where(o => o.OrderId.Equals(id));
if (query.FirstOrDefault() == null)
{
Console.WriteLine("订单号不存在！");
return(null);
}
else
{
return(query);
}
}
public List <OrderList> GetAllOrders()
{
using (var db = new OrderDB())
return(db.Order.Include("ListOfDetails").ToList());
}
