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    <p>You need to use the async APIs to access files in ApplicationData in WinJS, such as the getFileAsync function used below (this is a helper function I use in databinding for one of my apps):</p> <pre><code>function getLocalLargeMapTile(item) { return new WinJS.Promise( function (completed, error, progress) { var filename; var sourceFolder; if (item.latlong) { var latandlong = item.latlong.split(", "); var lat = latandlong[0]; var lon = latandlong[1]; filename = lat + lon + ".png"; var appData = Windows.Storage.ApplicationData.current; sourceFolder = appData.localFolder; sourceFolder.getFileAsync(filename).then(function (file) { var mapUrl = window.URL.createObjectURL(file, { oneTimeOnly: true }); completed(mapUrl); }, function (error) { handleError(error) }); } else { filename = "ms-appx:///images/megaphone_256x256.png"; completed(filename); } } ); } </code></pre> <p>What I'm doing in the helper function is checking whether my data includes a latitude and longitude, and if so, checking for a file with a matching filename, and since those files are in the Application Data folder, wrapping the file with an objectURL and returning a promise with the objectURL. Otherwise, I simply return an ms-appx url pointing to a static file in the app's images folder. Here's how I call this helper function, from a programmatic template (I don't think you can do this with a declarative template):</p> <pre><code>var image = document.createElement("img"); image.className = "item-image"; image.src = "ms-appx:///images/megaphone_256x256.png"; result.appendChild(image); // additional code omitted var promise = mapTileUtil.getLocalMapTile(currentItem); promise.done(function (mapTileUrl) { image.src = mapTileUrl; }); </code></pre> <p>For more info on templating functions, which provide greater control over the rendered markup than declarative templates, check out:</p> <p><a href="http://msdn.microsoft.com/en-us/library/windows/apps/jj585523.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/windows/apps/jj585523.aspx</a></p> <p>and</p> <p><a href="http://go.microsoft.com/fwlink/p/?linkid=231499" rel="nofollow">http://go.microsoft.com/fwlink/p/?linkid=231499</a></p> <p>For more information on Windows Store app development in general, register for <a href="http://bit.ly/gd30tolaunch" rel="nofollow">App Builder</a>.</p>
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    1. POHow to read image from Application folder in winjs
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    1. COhi..i completed it partially.But my problem is my winJS listview update automatically when each download finish.But some images shows in unreadable form.why like this?
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    2. CORun the project, and switch back to Visual Studio while the app is running and check the error list and output Window. If there's a problem with the images, you'll often get helpful messages in one of those places.
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