ユーザーを作成した後、または作成が失敗した場合、保存しようとすると、MembershipCreteStatusが2回以上返されます。

Question

私は、WCFとMembership.CreateUserを使用して新しいユーザーを作成します。

ユーザーを作成して別のユーザーを作成すると、「ユーザーが正常に作成されました」というステータスメッセージが2回表示されます。あるいは、新しいユーザーを作成しようとする最初の試みが失敗した場合、ユーザー名が既に存在するため、それ以上の試みがあれば、複数の状況メッセージが返されます。方法

tmsClient.CreateNewUserCompleted += new EventHandler<CreateNewUserCompletedEventArgs>(tmsClient_CreateNewUserCompleted); 
tmsClient.CreateNewUserAsync(nu.UserName, nu.Password, nu.Email, nu.SecurityQuestion, nu.SecurityAnswer); 

へ

私のWCFサービスコード

[OperationContract] 
public MembershipCreateStatus CreateNewUser(string userName, string password, string email, string securityQuestion, string securityAnswer) 
{ 
    MembershipCreateStatus status = new MembershipCreateStatus(); 
    MembershipUser newUser = Membership.CreateUser(userName, password, email, securityQuestion, securityAnswer, true, out status); 

    return status; 
} 

私の呼び出しは、私のイベントは

void tmsClient_CreateNewUserCompleted(object sender, CreateNewUserCompletedEventArgs e) 
{ 
    MembershipCreateStatus status = e.Result; 
    string result = GetErrorMessage(status); 
    MessageBox.Show(result); 
} 

そして最後にGetErrorMessageメソッドを完了

public string GetErrorMessage(MembershipCreateStatus status) 
{ 
    switch (status) 
    { 
     case MembershipCreateStatus.Success: 
      return "The user was successfully created."; 

     case MembershipCreateStatus.DuplicateUserName: 
      return "Username already exists. Please enter a different user name."; 

     case MembershipCreateStatus.DuplicateEmail: 
      return "A username for that e-mail address already exists. Please enter a different e-mail address."; 

     case MembershipCreateStatus.InvalidPassword: 
      return "The password provided is invalid. Please enter a valid password value."; 

     case MembershipCreateStatus.InvalidEmail: 
      return "The e-mail address provided is invalid. Please check the value and try again."; 

     case MembershipCreateStatus.InvalidAnswer: 
       return "The password retrieval answer provided is invalid. Please check the value and try again."; 

     case MembershipCreateStatus.InvalidQuestion: 
       return "The password retrieval question provided is invalid. Please check the value and try again."; 

     case MembershipCreateStatus.InvalidUserName: 
       return "The user name provided is invalid. Please check the value and try again."; 

     case MembershipCreateStatus.ProviderError: 
      return "The authentication provider returned an error. Please verify your entry and try again. If the problem persists, please contact your system administrator."; 

     case MembershipCreateStatus.UserRejected: 
      return "The user creation request has been canceled. Please verify your entry and try again. If the problem persists, please contact your system administrator."; 

     default: 
      return "An unknown error occurred. Please verify your entry and try again. If the problem persists, please contact your system administrator."; 
    } 
} 

これはなぜ起こっているのですか？ のTx

ニール

Answer 1

私はあなただけCreateNewUserAsyncメソッドを呼び出す前にCreateNewUserCompletedのためのハンドラを追加し、それを削除したことがないと思います。あなたのtmsClient_CreateNewUserCompletedメソッドは正常に動作するためには、このようにsthに見えるはずです：

void tmsClient_CreateNewUserCompleted(object sender, CreateNewUserCompletedEventArgs e) 
{ 
    tmsClient.CreateNewUserCompleted -= new EventHandler<CreateNewUserCompletedEventArgs>(tmsClient_CreateNewUserCompleted); 
    MembershipCreateStatus status = e.Result; 
    string result = GetErrorMessage(status); 
    MessageBox.Show(result); 
}