無法從Web服務返回我的SQL連接對象asp.net項目

這是我的網絡服務代碼：無法從Web服務返回我的SQL連接對象asp.net項目

using System; 
    using System.Collections.Generic; 
    using System.Linq; 
    using System.Web; 
    using System.Web.Services; 
    using System.Data.Sql; 
    using System.Data.SqlClient; 

    namespace DBwebService 
    { 
     /// <summary> 
     /// Summary description for WebService1 
     /// </summary> 
     [WebService(Namespace = "http://kse.org/")] 
     [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] 
     [System.ComponentModel.ToolboxItem(false)] 
     // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
     // [System.Web.Script.Services.ScriptService] 
     public class WebService1 : System.Web.Services.WebService 
     { 

      string ConnectionString = "Data Source=Shumaila-PC;Initial Catalog=kse;Persist Security Info=True;User ID=sa;Password=sa"; 
      public SqlConnection Conn; 

      [WebMethod] 

      public void SqlConn() 
      { 

        Conn = new SqlConnection(ConnectionString); 
        // Conn.Open(); 

       } 
       //catch (SqlException ex) 
       //{ 

       // //Console.WriteLine("Connection Unsuccessful " + ex.Message); 

       //} 

     } 
    }

我需要回到我的SQL連接對象，這樣我可以在我的asp.net叫它pid roject。但是當我做了

public SqlConnection SqlConn()

和

return.Conn();

這給了我下面的錯誤

Server Error in '/' Application. Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: Could not create type 'DBwebService.WebService1'.

Source Error:

Line 1: <%@ WebService Language="C#" CodeBehind="WebService1.asmx.cs" Class="DBwebService.WebService1" %>

Source File: /WebService1.asmx Line: 1

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1 --. Metadata contains a reference that cannot be resolved: 'http://localhost:50387/WebService1.asmx'. The content type text/html; charset=utf-8 of the response message does not match the content type of the binding (application/soap+xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 1024 bytes of the response were: ' Server Error in '/' Application. Parser Error '. The remote server returned an error: (500) Internal Server Error. If the service is defined in the current solution, try building the solution and adding the service reference again.

來源

2011-09-23 Shumaila Hameed Khan

只返回康恩，不康恩（） – mslliviu

這是錯字。我已經編碼康涅狄格州 –