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

                    SqlCommand cmd = new SqlCommand("aspnet_Membership_UnlockUser", holder.Connection);

                    cmd.CommandTimeout = CommandTimeout;
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.Parameters.Add(CreateInputParam("@ApplicationName", SqlDbType.NVarChar, ApplicationName));
                    cmd.Parameters.Add(CreateInputParam("@UserName", SqlDbType.NVarChar, username));

                    SqlParameter p = new SqlParameter("@ReturnValue", SqlDbType.Int);
                    p.Direction = ParameterDirection.ReturnValue;
                    cmd.Parameters.Add(p);

                    cmd.ExecuteNonQuery();

                    int status = ((p.Value != null) ? ((int)p.Value) : -1);
                    if (status == 0) {
                        return true;
                    }

                    return false;
                }
                finally {
                    if( holder != null )
                    {
                        holder.Close();
                    &