Send Email with Event Handler in C# from Windows Store Apps - XAML - UWP¶

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// Add EASendMail and Tasks Namespace
using System.Threading.Tasks;
using EASendMail;

namespace CSharp_Windows_Store_App
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
        }

        private void OnSecuring(
            object sender,
            SmtpStatusEventArgs e
        )
        {
            string status = e.Status;
            //status = "Securing ... ";
            textStatus.Text = status;
        }

        private void OnAuthorized(
            object sender,
            SmtpStatusEventArgs e
        )
        {
            string status = e.Status;
            // status = "Authorized";
            textStatus.Text = status;
        }

        public void OnConnected(
            object sender,
            SmtpStatusEventArgs e
        )
        {
            string status = e.Status;
            // status = "Connected";
            textStatus.Text = status;
        }

        public void OnSendingDataStream(
            object sender,
            SmtpDataStreamEventArgs e
        )
        {
            string status = String.Format("{0}/{1} sent", e.Sent, e.Total);
            textStatus.Text = status;
        }

        private async void btnSend_Click(object sender, RoutedEventArgs e)
        {
            btnSend.IsEnabled = false;
            await Send_Email();
            btnSend.IsEnabled = true;
        }

        private async Task Send_Email()
        {
            String Result = "";
            try
            {
                SmtpMail oMail = new SmtpMail("TryIt");
                SmtpClient oSmtp = new SmtpClient();

                // Set sender email address, please change it to yours
                oMail.From = new MailAddress("test@emailarchitect.net");

                // Add recipient email address, please change it to yours
                oMail.To.Add(new MailAddress("support@emailarchitect.net"));

                // Set email subject and email body text
                oMail.Subject = "test email from C# XAML project";
                oMail.TextBody = "this is a test email sent from Windows Store App, do not reply";

                // Your SMTP server address
                SmtpServer oServer = new SmtpServer("smtp.emailarchitect.net");

                // User and password for ESMTP authentication
                oServer.User = "test@emailarchitect.net";
                oServer.Password = "testpassword";

                // If your SMTP server requires TLS connection on 25 port, please add this line
                // oServer.ConnectType = SmtpConnectType.ConnectSSLAuto;

                // If your SMTP server requires SSL connection on 465 port, please add this line
                // oServer.Port = 465;
                // oServer.ConnectType = SmtpConnectType.ConnectSSLAuto;

                // Add event handlers
                oSmtp.Authorized += OnAuthorized;
                oSmtp.Connected += OnConnected;
                oSmtp.Securing += OnSecuring;
                oSmtp.SendingDataStream += OnSendingDataStream;

                await oSmtp.SendMailAsync(oServer, oMail);
                Result = "Email was sent successfully!";
            }
            catch (Exception ep)
            {
                Result = String.Format("Failed to send email with the following error: {0}", ep.Message);
            }

            // Display Result by Diaglog box
            Windows.UI.Popups.MessageDialog dlg = new
                Windows.UI.Popups.MessageDialog(Result);

            await dlg.ShowAsync();
        }
    }
}