Share Attachments And Compose Email In Windows Runtime Apps

Kishor Bikram Oli
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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).

new

Step 2:

Lets add a button in MainPage.xaml:

A button with the Click event.

Complete XAML code is:
1. <Page
2. x:Class="ShareAttachment.MainPage"
3. xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
4. xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
5. xmlns:local="using:ShareAttachment"
6. xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
7. xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
8. mc:Ignorable="d">
10. <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
11. <Button x:Name="btn_Share" Content="Share Attachment" HorizontalAlignment="Left" Margin="377,231,0,0" VerticalAlignment="Top" Click="btn_Share_Click"/>
13. </Grid>
14. </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.

assets

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.