public event System.EventHandler LoginSuccess;
        public event System.EventHandler LoginFail;
        public string UserNameLabel
        {
            get { return userNameLabel.Text; }
            set { userNameLabel.Text = value; }
        }
        public string PasswordLabel
        {
            get { return passwordLabel.Text; }
            set { passwordLabel.Text = value; }
        }
        public string LoginButtonText
        {
            get { return loginButton.Text; }
            set { loginButton.Text = value; }
        }
        [Browsable(false)]
        public string UserNameText
        {
            set { userNameText.Text = value; }
        }
        [Browsable(false)]
        public string PasswordText
        {
            set { passwordText.Text = value; }
        }
        private bool userNameAndPasswordAreValid(string userName, string password)
        {
            return password.Equals("TrustMe");
        }
        private void UserControl1_Load(object sender, EventArgs e)
        {

        }

        private void loginButton_Click(object sender, EventArgs e)
        {
            if (userNameText.Text.Length == 0)
            {
                loginProviderError.SetError(userNameText, "Please enter a user name");
                return;
            }

            if (passwordText.Text.Length == 0)
            {
                loginProviderError.SetError(passwordText, "Please enter a password");
                return;
            }
            if (userNameAndPasswordAreValid(userNameText.Text, passwordText.Text))
            {
                if (LoginSuccess != null)
                {
                    LoginSuccess(this, new System.EventArgs());
                }
            }
            else
            {
                if (LoginFail != null)
                {
                    LoginFail(this, new System.EventArgs());
                }
            }
        }