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自定义asp.net2.0权限提供程序SqlMembershipProvider

作者：用户投稿来源：网络发布时间： 12/10/13

;                     holder = null;
                    }
                }
            } catch {
                throw;
            }
        }

        //////////////////////////////////////////////////////////////////////
        //////////////////////////////////////////////////////////////////////
        //////////////////////////////////////////////////////////////////////

        public override bool ChangePasswordQuestionAndAnswer(string username, string password, string newPasswordQuestion, string newPasswordAnswer)
        {
            SecUtility.CheckParameter( ref username, true, true, true, 256, "username" );
            SecUtility.CheckParameter( ref password, true, true, false, 128, "password" );

            string salt;
            int passwordFormat;
            if (!CheckPassword(username, password, false, false, out salt, out passwordFormat))
                return false;
            SecUtility.CheckParameter(ref newPasswordQuestion, RequiresQuestionAndAnswer, RequiresQuestionAndAnswer, false, 256, "newPasswordQuestion");
            string encodedPasswordAnswer;
            if( newPasswordAnswer != null )
            {
                newPasswordAnswer = newPasswordAnswer.Trim();
            }

            SecUtility.CheckParameter(ref newPasswordAnswer, RequiresQuestionAndAnswer, RequiresQuestionAndAnswer, false, 128, "newPasswordAnswer");
            if (!string.IsNullOrEmpty(newPasswordAnswer)) {
                encodedPasswordA