Share Attachments And Compose Email In Windows Runtime Apps

Here are the steps, 

Step 1:

Create a simple Windows Project. Click New Project, Visual C#, Windows 8, Windows, then click Blank App (Windows 8.1).



Step 2:

Lets add a button in MainPage.xaml:

• A button with the Click event.
  
  Complete XAML code is:
  

  <Page
      x:Class="ShareAttachment.MainPage"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:local="using:ShareAttachment"
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
      mc:Ignorable="d">
  
      <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
          <Button x:Name="btn_Share" Content="Share Attachment" HorizontalAlignment="Left" Margin="377,231,0,0" VerticalAlignment="Top" Click="btn_Share_Click"/>
  
      </Grid>
  </Page>

Step 3:

We put an image file ‘abc.jpg’ in Assets folder of solution explorer so that it can be used as an attachment in the mail.



Step 4:

In the code behind: MainPage.xaml.cs,

Update your code with this:

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices.WindowsRuntime;
using Windows.ApplicationModel.DataTransfer;
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;

namespace ShareAttachment
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
            var dtm = Windows.ApplicationModel.DataTransfer.DataTransferManager.GetForCurrentView();
            dtm.DataRequested += Dtm_DataRequested;
        }

        private async void Dtm_DataRequested(Windows.ApplicationModel.DataTransfer.DataTransferManager sender, Windows.ApplicationModel.DataTransfer.DataRequestedEventArgs args)
        {
            DataPackage dataToShare = args.Request.Data;
            dataToShare.Properties.Title = "Attachment Sharing Application";
            dataToShare.Properties.Description = "Attachment Sharing Application that share images";

            var storageFile = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFileAsync("Assets\\abc.jpg");
            var imageStream = Windows.Storage.Streams.RandomAccessStreamReference.CreateFromFile(storageFile);
            dataToShare.SetBitmap(imageStream);
        }

        private void btn_Share_Click(object sender, RoutedEventArgs e)
        {
            Windows.ApplicationModel.DataTransfer.DataTransferManager.ShowShareUI();
        }
    }
}

Step 5:

Run the application, click the Share Attachment button and you see a Share UI open in the right side of app.

Click on Mail and you see an email compose with an image attached.



That’s it.

Thanks, Happy Coding!

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