System.Web.Security.MembershipProvider.ValidateUser C# (CSharp) Method

		public abstract bool ValidateUser (string name, string password);
		public abstract bool UnlockUser (string userName);

        public bool ValidateUser(string userName, string password)
        {
            if (String.IsNullOrEmpty(userName))
            {
                throw new ArgumentException("Value cannot be null or empty.", "userName");
            }
            if (String.IsNullOrEmpty(password))
            {
                throw new ArgumentException("Value cannot be null or empty.", "password");
            }

            return(_provider.ValidateUser(userName, password));
        }