Linq:从XML获取数据

实体类

 public class Customer
         {
             public string CustomerID { get; set; }
             public string CompanyName { get; set; }
             public string Address { get; set; }
             public string City { get; set; }
             public string Region { get; set; }
             public string PostalCode { get; set; }
             public string Country { get; set; }
             public string Phone { get; set; }
             public string Fax { get; set; }
             public Order[] Orders { get; set; }
13　　　　　　　 public int CId{ get; set; }

         }

从XML中获取数据

  public class LinqSamples
  {
               
 4             public List<Customer> GetList()
             {
                 List<Customer> customerList = (
                     from e in XDocument.Load("Customers.xml").
                               Root.Elements("customer")
                     select new Customer
                     {
                         CustomerID = (string)e.Element("id"),
                         CompanyName = (string)e.Element("name"),
                         Address = (string)e.Element("address"),
                         City = (string)e.Element("city"),
                         CId=    (int)e.Element("cid"),
                         PostalCode = (string)e.Element("postalcode"),
                         Country = (string)e.Element("country"),
                         Phone = (string)e.Element("phone"),
                         Fax = (string)e.Element("fax"),
                         Orders = (
                             from o in e.Elements("orders").Elements("order")
                             select new Order
                             {
                                 OrderID = (int)o.Element("id"),
                                 OrderDate = (DateTime)o.Element("orderdate"),
                                 Total = (decimal)o.Element("total")
                             })
                             .ToArray()
                     })
                     .ToList();
　　　　　　　　　　　　　return customerList;
             }
  }

XML数据文件

 <?xml version="1.0"?>
 <customers>
   <customer>
　　　　<cid>1</cid>
     <id>ALFKI</id>
     <name>Alfreds Futterkiste</name>
     <address>Obere Str. </address>
     <city>Berlin</city>
     <postalcode></postalcode>
     <country>Germany</country>
     <phone>-</phone>
     <fax>-</fax>
     <orders>
       <order>
         <id></id>
         <orderdate>--25T00::</orderdate>
         <total>814.50</total>
       </order>
       <order>
         <id></id>
         <orderdate>--03T00::</orderdate>
         <total>878.00</total>
       </order>
       <order>
         <id></id>
         <orderdate>--13T00::</orderdate>
         <total>330.00</total>
       </order>
       <order>
         <id></id>
         <orderdate>--15T00::</orderdate>
         <total>845.80</total>
       </order>
       <order>
         <id></id>
         <orderdate>--16T00::</orderdate>
         <total>471.20</total>
       </order>
       <order>
         <id></id>
         <orderdate>--09T00::</orderdate>
         <total>933.50</total>
       </order>
     </orders>
   </customer>
   <customer>
　　　　<cid>2</cid>
     <id>ANATR</id>
     <name>Ana Trujillo Emparedados y helados</name>
     <address>Avda. de la Constitución </address>
     <city>México D.F.</city>
     <postalcode></postalcode>
     <country>Mexico</country>
     <phone>() -</phone>
     <fax>() -</fax>
     <orders>
       <order>
         <id></id>
         <orderdate>--18T00::</orderdate>
         <total>88.80</total>
       </order>
       <order>
         <id></id>
         <orderdate>--08T00::</orderdate>
         <total>479.75</total>
       </order>
       <order>
         <id></id>
         <orderdate>--28T00::</orderdate>
         <total>320.00</total>
       </order>
       <order>
         <id></id>
         <orderdate>--04T00::</orderdate>
         <total>514.40</total>
       </order>
     </orders>
   </customer>
 </customers>

内容源自：http://code.msdn.microsoft.com/101-LINQ-Samples-3fb9811b