mono/mcs/class/referencesource/System.ServiceModel/System/ServiceModel/Security/UserNamePasswordValidationMode.cs

//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.ServiceModel.Security
{
    using System.ComponentModel;

    public enum UserNamePasswordValidationMode
    {
        Windows,
        MembershipProvider,
        Custom
    }

    static class UserNamePasswordValidationModeHelper
    {
        public static bool IsDefined(UserNamePasswordValidationMode validationMode)
        {
            return validationMode == UserNamePasswordValidationMode.Windows
                || validationMode == UserNamePasswordValidationMode.MembershipProvider
                || validationMode == UserNamePasswordValidationMode.Custom;
        }

        public static void Validate(UserNamePasswordValidationMode value)
        {
            if (!IsDefined(value))
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidEnumArgumentException("value", (int)value,
                    typeof(UserNamePasswordValidationMode)));
            }
        }

    }
}