Непонятные ошибки компиляции - «Не реализует» и «не может переопределить ... ... не имеет переопределенного метода доступа».

Question

Я пишу свое первое приложение MVC прямо сейчас и создаю новый MembershipProvider, но сталкиваюсь с некоторыми ошибками компиляции, которые просто неверны в процессе.Вот мой код:

public class ProfileProvider : MembershipProvider
{
    protected NameValueCollection Config = null;
    protected new String Name = null;
    protected String _PasswordStrengthRegularExpression = "";
    protected int _MinRequiredNonAlphanumericCharacters = 0;
    protected int _MinRequiredPasswordLength = 0;
    protected String _PasswordFormat = "";
    protected Boolean _RequiresUniqueEmail = false;
    protected int _PasswordAttemptWindow = 0;
    protected int _MaxInvalidPasswordAttempts = 0;
    protected String _ApplicationName = "";
    protected Boolean _RequiresQuestionAndAnswer = false;
    protected Boolean _EnabledPasswordReset = false;
    protected Boolean _EnablePasswordRetrieval = false;

    protected override String PasswordStrengthRegularExpression
    {
        get
        {
            return this._PasswordStrengthRegularExpression;
        }
        set
        {
            this._PasswordStrengthRegularExpression = value;
        }
    }
    public override int MinRequiredNonAlphanumericCharacters
    {
        get
        {
            return this._MinRequiredNonAlphanumericCharacters;
        }
        set
        {
            this._MinRequiredNonAlphanumericCharacters = value;
        }
    }
    public override int MinRequiredPasswordLength
    {
        get
        {
            return _MinRequiredPasswordLength;
        }
        set
        {
            this._MinRequiredPasswordLength = value;
        }
    }
    public override String PasswordFormat
    {
        get
        {
            return this._PasswordFormat;
        }
        set
        {
            this._PasswordFormat = value;
        }
    }
    public override Boolean RequiresUniqueEmail
    {
        get
        {
            return _RequiresUniqueEmail;
        }
        set
        {
            this._RequiresUniqueEmail = value;
        }
    }
    public override int PasswordAttemptWindow
    {
        get
        {
            return this._PasswordAttemptWindow;
        }
        set
        {
            this._PasswordAttemptWindow = value;
        }
    }
    public override int MaxInvalidPasswordAttempts
    {
        get
        {
            return this._MaxInvalidPasswordAttempts;
        }
        set
        {
            this._MaxInvalidPasswordAttempts = value;
        }
    }
    public override String ApplicationName
    {
        get
        {
            return this._ApplicationName;
        }
        set
        {
            this._ApplicationName = value;
        }
    }
    public override Boolean RequiresQuestionAndAnswer
    {
        get
        {
            return this._RequiresQuestionAndAnswer;
        }
        set
        {
            this._RequiresQuestionAndAnswer = value;
        }
    }
    public override Boolean EnablePasswordReset
    {
        get
        {
            return this._EnabledPasswordReset;
        }
        set
        {
            this._EnabledPasswordReset = value;
        }
    }
    public override Boolean EnablePasswordRetrieval
    {
        get
        {
            return this._EnablePasswordRetrieval;
        }
        set
        {
            this._EnablePasswordRetrieval = value;
        }
    }

А вот мои ошибки компиляции:

Error   7   'EmptyMVC.Controllers.ProfileProvider.RequiresUniqueEmail.set': cannot override because 'System.Web.Security.MembershipProvider.RequiresUniqueEmail' does not have an overridable set accessor  C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   78  13  EmptyMVC
Error   10  'EmptyMVC.Controllers.ProfileProvider.RequiresQuestionAndAnswer.set': cannot override because 'System.Web.Security.MembershipProvider.RequiresQuestionAndAnswer' does not have an overridable set accessor  C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   122 13  EmptyMVC
Error   3   'EmptyMVC.Controllers.ProfileProvider.PasswordStrengthRegularExpression': cannot change access modifiers when overriding 'public' inherited member 'System.Web.Security.MembershipProvider.PasswordStrengthRegularExpression'   C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   28  35  EmptyMVC
Error   6   'EmptyMVC.Controllers.ProfileProvider.PasswordFormat': type must be 'System.Web.Security.MembershipPasswordFormat' to match overridden member 'System.Web.Security.MembershipProvider.PasswordFormat'   C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   61  32  EmptyMVC
Error   8   'EmptyMVC.Controllers.ProfileProvider.PasswordAttemptWindow.set': cannot override because 'System.Web.Security.MembershipProvider.PasswordAttemptWindow' does not have an overridable set accessor  C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   89  13  EmptyMVC
Error   5   'EmptyMVC.Controllers.ProfileProvider.MinRequiredPasswordLength.set': cannot override because 'System.Web.Security.MembershipProvider.MinRequiredPasswordLength' does not have an overridable set accessor  C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   56  13  EmptyMVC
Error   4   'EmptyMVC.Controllers.ProfileProvider.MinRequiredNonAlphanumericCharacters.set': cannot override because 'System.Web.Security.MembershipProvider.MinRequiredNonAlphanumericCharacters' does not have an overridable set accessor    C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   45  13  EmptyMVC
Error   9   'EmptyMVC.Controllers.ProfileProvider.MaxInvalidPasswordAttempts.set': cannot override because 'System.Web.Security.MembershipProvider.MaxInvalidPasswordAttempts' does not have an overridable set accessor    C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   100 13  EmptyMVC
Error   12  'EmptyMVC.Controllers.ProfileProvider.EnablePasswordRetrieval.set': cannot override because 'System.Web.Security.MembershipProvider.EnablePasswordRetrieval' does not have an overridable set accessor  C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   144 13  EmptyMVC
Error   11  'EmptyMVC.Controllers.ProfileProvider.EnablePasswordReset.set': cannot override because 'System.Web.Security.MembershipProvider.EnablePasswordReset' does not have an overridable set accessor  C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   133 13  EmptyMVC
Error   1   'EmptyMVC.Controllers.ProfileProvider' does not implement inherited abstract member 'System.Web.Security.MembershipProvider.PasswordStrengthRegularExpression.get'  C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   12  18  EmptyMVC
Error   2   'EmptyMVC.Controllers.ProfileProvider' does not implement inherited abstract member 'System.Web.Security.MembershipProvider.PasswordFormat.get' C:\Users\DigitalJedi\documents\visual studio 2010\Projects\EmptyMVC\EmptyMVC\Controllers\ProfileController.cs   12  18  EmptyMVC

Я сделал несколько проходов, попробовал использовать 'new'ключевое слово вместо переопределения, и, похоже, ничего не работает.

Answer 1

Свойство, которое вы переопределяете в абстрактном базовом классе , не имеет Setter .

Из ответов на на этот вопрос не похоже, что вы можете делать то, что хотите.