private async void btnSumit(object sender, RoutedEventArgs e)
        {
            this.currentMember.firstName    = this.FirstName.Text;
            this.currentMember.lastName     = this.LastName.Text;
            this.currentMember.email        = this.Email.Text;
            this.currentMember.password     = this.Password.Password.ToString();
            this.currentMember.avatar       = this.ImageUrl.Text;
            this.currentMember.phone        = this.Phone.Text;
            this.currentMember.address      = this.Address.Text;
            this.currentMember.introduction = this.Introduction.Text;
            await API_Handle.Sign_Up(this.currentMember);

            Debug.WriteLine("Acction Succcess");

            //đăng ký thành công sẽ tắt bảng.
            this.Result = MyResult.Yes;
            // Close the dialog
            dialogRegister.Hide();
        }