Change password error

Question

I want to change a password for a user.

I tried this but it doesn't work:

MembershipUser mu = Membership.GetUser(ddlUsers.SelectedValue, false);
**mu.ChangePassword(mu.ResetPassword(), "password2!");**  

This is my Error: Value can not be null. Parameter name: password answer

Anyone a idea?

Answer 1

In your web.config you probably have a value that requires you to set a security question/answer for a member. You can turn this off with this setting in your membership provider settings section in your web.config:

requiresQuestionAndAnswer="false"

Answer 2

Default provider name ="AspNetSqlMembershipProvider"

Web.config:

<membership>
          <providers>
            <clear/>
            <!-- Default provider name--> <add name="AspNetSqlMembershipProvider"
            requiresQuestionAndAnswer="false"
             connectionStringName="ConnectionString" applicationName="/"
            type="System.Web.Security.SqlMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
            enablePasswordRetrieval="false" enablePasswordReset="true"
            minRequiredNonalphanumericCharacters="0"
            minRequiredPasswordLength="6" passwordStrengthRegularExpression=""
            passwordAttemptWindow="10" maxInvalidPasswordAttempts="8"
               />
          </providers>
        </membership>