在web.config中：

复制代码 代码如下:

<connectionStrings>

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

</connectionStrings>

复制代码 代码如下:

<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>

重设密码关键语句：

复制代码 代码如下:

MembershipUser mem = Membership.GetUser(this.lblUserName.Text);

string p = mem.ResetPassword();

mem.ChangePassword(p, "123456");