我想通过调用ChangePasswordQuestionAndAnswer方法来更改用户的密码问答
MembershipUser user = Membership.GetUser(userName);
string password = user.GetPassword(); // error here
string sQuestion = DropDownList1.SelectedValue.ToString();
string sAnswer = txtAnswer.Text.ToString();
user.ChangePasswordQuestionAndAnswer(password, sQuestion, sAnswer);
但我是管理员;我无法传递用户密码,因为我不知道。