<connectionStrings> <add name="SqlServices" connectionString="server=.;database=data;uid=sa;pwd=123;" /> </connectionStrings>

<membership defaultProvider="SqlProvider" userIsOnlineTimeWindow="15"> <providers> <clear/> <add name="SqlProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="SqlServices" applicationName="dev" enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false" passwordFormat="Hashed" minRequiredPasswordLength="1" minRequiredNonalphanumericCharacters="0" /> </providers> </membership>

MembershipUser mem = Membership.GetUser(this.lblUserName.Text); string p = mem.ResetPassword(); mem.ChangePassword(p, "123456");