protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.Main);

            txtUsername = FindViewById <EditText>(Resource.Id.txtusername);
            txtPassword = FindViewById <EditText>(Resource.Id.txtpassword);
            btnCreate   = FindViewById <Button>(Resource.Id.btnSignUp);
            btnSignIn   = FindViewById <Button>(Resource.Id.btnSign);
            helper      = new Helper(this);

            btnCreate.Click += delegate { StartActivity(typeof(SignUp)); };

            btnSignIn.Click += delegate
            {
                try
                {
                    string Username = txtUsername.Text.ToString();
                    string Password = txtPassword.Text.ToString();
                    var    user     = helper.Authenticate(this, new Admin(null, Username, null, null, Password, null));
                    if (user != null)
                    {
                        Toast.MakeText(this, "Login Successful", ToastLength.Short).Show();
                        StartActivity(typeof(Connect));
                    }
                    else
                    {
                        Toast.MakeText(this, "Login Unsuccessful! Please verify your Username and Password", ToastLength.Short).Show();
                    }
                }
                catch (SQLiteException ex)
                {
                    Toast.MakeText(this, "" + ex, ToastLength.Short).Show();
                }
            };
        }