WCF behavior, UserNameClientCredentials

UserNameClientCredentials.cs

/*
*client.ChannelFactory.Endpoint.Behaviors.Remove<System.ServiceModel.Description.ClientCredentials>();
*client.ChannelFactory.Endpoint.Behaviors.Add(new CustomCredentials());
*client.ClientCredentials.UserName.UserName = username;
*client.ClientCredentials.UserName.Password = password;
*/

public class UserNameClientCredentials : ClientCredentialsElement
    {
        private ConfigurationPropertyCollection properties;

        /// <summary>
        /// Username (required)
        /// </summary>
        public string UserName
        {
            get { return (string)base["userName"]; }
            set { base["userName"] = value; }
        }

        /// <summary>
        /// Password (optional)
        /// </summary>
        public string Password
        {
            get { return (string)base["password"]; }
            set { base["password"] = value; }
        }

        protected override ConfigurationPropertyCollection Properties
        {
            get
            {
                if (properties == null)
                {
                    ConfigurationPropertyCollection baseProps = base.Properties;
                    baseProps.Add(new ConfigurationProperty(
                                      "userName",
                                      typeof(String),
                                      null,
                                      null,
                                      new StringValidator(1),
                                      ConfigurationPropertyOptions.IsRequired));
                    baseProps.Add(new ConfigurationProperty(
                                      "password",
                                      typeof(String),
                                      ""));

                    properties = baseProps;
                }
                return properties;
            }
        }

        protected override object CreateBehavior()
        {
            //var creds = (ClientCredentials)base.CreateBehavior();
            //creds.UserName.UserName = UserName;
            //if (Password != null) creds.UserName.Password = Password;
            //ApplyConfiguration(creds);
            //return creds;

            ClientCredentials credentials = new ClientCredentials();
            credentials.UserName.UserName = UserName;
            if (Password != null) credentials.UserName.Password = Password;
            this.ApplyConfiguration(credentials);
            return credentials;
        }
    }