從Wcf服務連接到dbml

我有Web應用程序和Android應用程序與Wcf服務進行通信。我的服務之一是Chat.svc從Wcf服務連接到dbml

[ServiceContract(Namespace = "http://webchat.com")] 
public interface IChat 
{ 
    [OperationContract] 
    [WebInvoke(Method = "POST", 
     ResponseFormat = WebMessageFormat.Json, 
     RequestFormat = WebMessageFormat.Json, 
     BodyStyle = WebMessageBodyStyle.Wrapped, 
     UriTemplate = "Start")] 
    StartChatResult StartChat(StartChatEntity sce); 
}

和Chat.svc.cs

public StartChatResult StartChat(StartChatEntity sce) 
    { 
     //doing something else 

     List<tblChatRoom> list = ChatManager.GetChatRoomList(); 

     return new StartChatResult() { IsSuccess = true, ChatRooms = list }; 

    }

從我ChatManager類

public static List<tblChatRoom> GetChatRoomList() 
    { 
     SessionDBDataContext db = new SessionDBDataContext(); 
     return db.tblChatRooms.ToList(); 
    }

這種方法當我打電話在Android爲startChat方法總是有一個「錯誤的請求」響應。當我採取評論此行

List<tblChatRoom> list = ChatManager.GetChatRoomList();

我有「好」，沒問題。這條線存在問題。也SessionDBDataContext類是

[global::System.Data.Linq.Mapping.DatabaseAttribute(Name="SessionDB")] 
public partial class SessionDBDataContext : System.Data.Linq.DataContext 
{ 

    private static System.Data.Linq.Mapping.MappingSource mappingSource = new AttributeMappingSource(); 

    public SessionDBDataContext() : 
      base(global::System.Configuration.ConfigurationManager.ConnectionStrings["SessionDBConnectionString"].ConnectionString, mappingSource) 
    { 
     OnCreated(); 
    } 

    public SessionDBDataContext(string connection) : 
      base(connection, mappingSource) 
    { 
     OnCreated(); 
    } 

    public SessionDBDataContext(System.Data.IDbConnection connection) : 
      base(connection, mappingSource) 
    { 
     OnCreated(); 
    } 

    public SessionDBDataContext(string connection, System.Data.Linq.Mapping.MappingSource mappingSource) : 
      base(connection, mappingSource) 
    { 
     OnCreated(); 
    } 

    public SessionDBDataContext(System.Data.IDbConnection connection, System.Data.Linq.Mapping.MappingSource mappingSource) : 
      base(connection, mappingSource) 
    { 
     OnCreated(); 
    } 

    public System.Data.Linq.Table<tblChatRoom> tblChatRooms 
    { 
     get 
     { 
      return this.GetTable<tblChatRoom>(); 
     } 
    } 

    public System.Data.Linq.Table<tblTalker> tblTalkers 
    { 
     get 
     { 
      return this.GetTable<tblTalker>(); 
     } 
    } 

    public System.Data.Linq.Table<tblSession> tblSessions 
    { 
     get 
     { 
      return this.GetTable<tblSession>(); 
     } 
    } 

    public System.Data.Linq.Table<tblMessagePool> tblMessagePools 
    { 
     get 
     { 
      return this.GetTable<tblMessagePool>(); 
     } 
    } 
}

我想有一個與SessionDB.dbml一個問題，但是當我使用這不是服務方法有聊天室列表的方法，它是確定。我無法理解撥打服務時出現的問題。請幫助

來源

2012-05-25 ffffffff

試驗驗證碼：創建一個類如tblChatRoom，例如：

public class ChatRoom 
{ 
    public string username; 
    public string firstname; 
    public string lastname; 

    public ChatRoom(){} 

    public ChatRoom(string username, string firstname, string lastname) 
    { 
     this.username = username; 
     this.lastname = lastname; 
     this.firstname = firstname; 
    } 
} 

public StartChatResult StartChat(StartChatEntity sce) 
{ 
    //doing something else 

    List<ChatRoom> list = 
     (from q in ChatManager.GetChatRoomList() 
      select new ChatRoom(q.username, q.firstname, q.lastname)).ToList(); 

    return new StartChatResult() { IsSuccess = true, ChatRooms = list }; 

}

來源

2012-07-26 21:33:36 hadign

從Wcf服務連接到dbml

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