在.net中調用WCF webservices函數時出錯

Question

我試圖在visual studio 2010中創建演示WCF webservice;我已經成功添加了thr服務引用，但客戶端上仍有問題。如果我嘗試在服務中調用某個函數，則會出現錯誤。

這裏是我的代碼：

namespace BankAccount 
{ 
    [ServiceContract] 
    public interface IUserServices 
    { 
     [OperationContract] 
     bool addNewUser(User user); 
    } 
} 

namespace BankAccount 
{ 
    public class UserServices : IUserServices 
    { 
     public bool addNewUser(User user) 
     { 
      SqlConnection conn = null; 
      SqlCommand cmd = null; 
      try 
      { 
       String sql = "insert into user(username,password,isActive) values(@username,@password,@isActive)"; 
       conn = Connection.getConnection(); 
       conn.Open(); 
       cmd = new SqlCommand(sql, conn); 
       cmd.Parameters.Add(new SqlParameter("@username", user.getUsername())); 
       cmd.Parameters.Add(new SqlParameter("@password", user.getPassword())); 
       cmd.Parameters.Add(new SqlParameter("@password", user.getActive())); 
      } 
      catch (SqlException ex) 
      { 
       return false; 
       throw ex; 
      } 
      finally 
      { 
       cmd.Dispose(); 
       conn.Close(); 
       conn.Dispose(); 
      } 
      return true; 
     } 
    } 
} 

//用戶對象

public class User 
    { 
     private int Id; 
     private String username; 
     private String password; 
     private Boolean isActive; 

     public User() 
     { 

     } 

     public int getId() 
     { 
      return this.Id; 
     } 

     public void setId(int id) 
     { 
      this.Id = id; 
     } 

     public String getUsername() 
     { 
      return this.username; 
     } 

     public void setUsername(String username) 
     { 
      this.username = username; 
     } 

     public String getPassword() 
     { 
      return this.password; 
     } 

     public void setPassword(String password) 
     { 
      this.password = password; 
     } 

     public Boolean getActive() 
     { 
      return this.isActive; 
     } 

     public void setActive(Boolean isActive) 
     { 
      this.isActive = isActive; 
     } 
    } 

的客戶端站點

using System.Web.UI.WebControls; 
using BankClient.ServicesForUser; 

namespace BankClient.userclient 
{ 
    public partial class usersaving : System.Web.UI.Page 
    { 
     protected void Page_Load(object sender, EventArgs e) 
     { 

     } 

     protected void btnSave_Click(object sender, EventArgs e) 
     { 
      UserServicesClient client = new UserServicesClient(); 
      //User on client project 
      User user = new User(); 
      user.setUsername(txtusername.Text); 
      user.setPassword(txtpassword.Text); 
      user.setActive(true); 

      bool result = client.addNewUser(user); 
     } 
    } 
} 

我上以下行錯誤：

client.addNewUser(user) 

錯誤：

the best overloaded method match for 'Bank.Client.ServicesName.UserServicesClient.addNewUser(Bank.Client.ServicesName.User) has some invalid arguments 

有沒有人有一個想法，這個問題可能是什麼？

Answer 1

您在創建服務後更改了用戶對象。重新生成客戶端上的服務合同。

看來你使用了錯誤的用戶對象：

 Bank.Client.ServicesName.User user = new Bank.Client.ServicesName.User(); 
     user.Username = txtusername.Text; 
     user.Password = txtpassword.Text; 
     user.Active = true; 

     bool result = client.addNewUser(user);