WCF接口没有实现

Question

我是新来的WCF，不知道什么是错的，我得到以下错误：

WcfServiceLibrary.ReportServiceCO' does not implement interface member 'WcfServiceLibrary.IReport.GetAllOrdersForCustomer(int)'

接口：

[ServiceContract] 
interface IReport 
{ 
    // [OperationContract] 
    // List<ModelData> GetAllCustomer(); 
    [OperationContract] 
    List<ORDER> GetAllOrdersForCustomer(int _customerid); 
} 

类：

class ReportServiceCO : IReport 
{ 

    public List<ORDER> GetAllORDERsForCustomer(int _customerid) 
    { 
     List<ORDER> orders = new List<ORDER>(); 
     TestEntities ent = new TestEntities(); 
     var orders3 = from x in ent.ORDERs 
         where x.CUSTOMERID == _customerid 
         select new { x.ORDERID, x.DATA, x.CUSTOMERID, x.VALOARE }; 
     foreach (var i in orders3) 
     { 
      ORDER o = new ORDER(); 
      o.ORDERID = i.ORDERID; 
      o.CUSTOMERID = i.ORDERID; 
      o.DATA = i.DATA; 
      o.CUSTOMERID = i.CUSTOMERID; 
      o.VALOARE = i.VALOARE; 
      orders.Add(o); 
     } 
     return orders; 
    } 
} 

Answer 1

方法名称区分大小写：

在interface是它声明为：

GetAllOrdersForCustomer 

然而，实现被定义为：

GetAllORDERsForCustomer 

它需要：

public List<ORDER> GetAllOrdersForCustomer(int _customerid) 
{ 

} 

Answer 2

重命名GetAllORDERsForCustomer到GetAllOrdersForCustomer。