Share Content of WebView Control in Windows Store Apps Using C#

Gaurav Gupta
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I have already described in my earlier articles how to use Share Contract in Windows Store apps using C# and also given the details of all the data formats that you can share to others via email by using Share Contract. You can find this here.

Today I will describe the Share Contract with the WebView control. We can also share the content of a WebView control using Share Contract. WebView may contain either the HTML format data or it may contain the Navigate URL of a website.

Applications that use the WebView can share the contents of the WebView control via the Share contract. To share the content of a WebView control, select some part of the WebView content and share this using Share Contract.

The following are the steps to share the selected content of a WebView control using Share Contract in C#/XAML.

Step 1

Create a new Windows Store Application using C#.

Step 2

Here I design my MainPage.xaml with buttons to share content and an WebView control. I give some URL of that control to show the webpage.

<Page

x:Class="ShareContentwithWebViewControl.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:local="using:ShareContentwithWebViewControl"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

mc:Ignorable="d">

<Grid.RowDefinitions>

</Grid.RowDefinitions>

</StackPanel>

<Grid>

</Grid>

</Border>

</Grid>

</Page>

Step 3

In the .cs file you need to add the neccessary namespaces to your app so you can create and process the objects related to sharing.

using Windows.ApplicationModel.DataTransfer;

Step 4

Now, we open the view for Share on button click using the GetForCurrentView() method of the DataTransferManager class.

private void Share_Click(object sender, RoutedEventArgs e)

{

dataTransferManager = DataTransferManager.GetForCurrentView();

DataTransferManager.ShowShareUI();

}

Step 5

Create an Event handler of the DataRequested event in the click event. This event occurs when you share the content.

dataTransferManager.DataRequested += dataTransferManager_DataRequested;

Step 6

Here is the coding of the DataRequested event that we defined previously.

First I get the DataPackage object from the webview control that contains the the selected contents; see:

DataRequest request = args.Request;

DataPackage p = WebView7.DataTransferPackage;

Check if any content is selected or not. If selected give it to the DataRequest object to share to other people via email; that is done with:

if (p.GetView().Contains(StandardDataFormats.Text))

{

p.Properties.Title = "WebView Sharing Excerpt";

p.Properties.Description = "This is a snippet from the content hosted in the WebView control";

request.Data = p;

}

else

{

request.FailWithDisplayText("Nothing to share");

}

Here is full code:

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

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 ShareContentwithWebViewControl

{

public sealed partial class MainPage : Page

{

public MainPage()

{

this.InitializeComponent();

}

DataTransferManager dataTransferManager = null;

protected override void OnNavigatedTo(NavigationEventArgs e)

{

WebView7.Navigate(new Uri("http://www.c-sharpcorner.com"));

}