Update email address at SQL server Database in FBA (SharePoint C#)

try
{
MembershipUser usr = System.Web.Security.Membership.Providers["FBAUser"].GetUser(SPContext.Current.Web.CurrentUser.LoginName, true);
usr.Email = "emailaddress@email.com";
System.Web.Security.Membership.UpdateUser(usr);
Msg.Text += "Email is Changed at FBA <br/>";
}
catch (Exception ex)
{
Msg.Text += " *Email is not updated at FBA <br/>" + ex.Message;
}