winjs

问题 I am trying to send updates to my app's tile. This works fine when the app is running. I can, for example, easily send a tile update notification to the tile when the user clicks a button. What I can't work out is how to update the tile when the app isn't working. The only option I have found for this is to poll (or push from) a remote webserver using REST on HTTP . This isn't ideal for me, and I cannot believe that is the only method of updating the tile. Ideal here would be to specify a

问题 I'm currently developing a windows modern app using Foundation for Apps and cordova. The app crashes in many ways during navigation, sometimes even immediately after running it. The crash is this one And i can't manage to debug it in any way. I've tried setting up a window.onerror and a WinJS.Application.onerror catch all function with no results. Apparently the crash happens at a lower level. I've also inspected the event viewer but no info are available. What happens is apparently similar

问题 I am currently trying to retrieve a unique device identifier. Here is my code: var token = Windows.System.Profile.HardwareIdentification.getPackageSpecificToken(null); var reader = Windows.Storage.Streams.DataReader.fromBuffer(token.id); reader.unicodeEncoding = true; var identifier = reader.readString(reader.unconsumedBufferLength); console.log(identifier); But it raises following error: The operation attempted to access data outside the valid range. How can I retrieve the size of my token

问题 In the HTML media playback sample there's a code that demonstrates how to add subtitles to the video: <video id="subtitleVideo" style="position: relative; z-index: auto; width: 50%;" src="http://ie.microsoft.com/testdrive/Videos/BehindIE9AllAroundFast/Video.mp4" poster="images/Win8MediaLogo.png" loop controls> <track id="scenario3entrack" src="media/sample-subtitle-en.vtt" kind="subtitles" srclang="en" default> </video> It works fine, but when I change subtitle track src to src="http:/

问题 How can i remove the tooltip from a Slider control (input[range]) in WinJS? 回答1: Add the ::-ms-tooltip pseudo element and set display: to none; http://msdn.microsoft.com/en-us/library/windows/apps/hh465805.aspx input[type=range]::-ms-tooltip { display: none; } 来源： https://stackoverflow.com/questions/12882348/winjs-remove-tooltip-from-slider

问题 I currently am developing an app for Windows 10 and have come across a problem. I am using JS and HTML for the UI and was hoping on using C# for code behind. From the limited documentation of this platform, my understanding is that I must use a Windows Runtime Component which then will get referenced by the JS project so that I can call the managed code from it. I then also need to create a Universal Class Library that the Runtime Component will reference. The problem that I am having is that

问题 I'm tinkering with some Windows Store development in JavaScript and I seem to be stuck on how to get a byte array from a binary file. I've found a couple of examples online, but they all seem to only read in text whereas my file is an image. I'm opening the file like this: Windows.Storage.FileIO.readBufferAsync(photos[currentIndex]).done(function (buffer) { var dataReader = Windows.Storage.Streams.DataReader.fromBuffer(buffer); var fileContent = dataReader.readString(buffer.length);

问题 I've got an application in which the user clicks a button, and should be presented a PDF that is stored in the application. They can view the PDF internally in the app, or launch the native windows PDF viewer, either way is fine. How can I provide a link / event handler for the button click to launch a view of a PDF file? 回答1: Use the LaunchFileAsync function of the Launcher class, description: Starts the default app associated with the specified file, using the specified options. example

问题 I'm new in TypeScript. I'm getting error when trying to instantiating the class. Below is my sample code, actual code is different can't share. module ABC { export class A { public execute<T>(action: string, data?: any, callerContext?: any): IAsyncResult<T> { // CODE:: var requestMessage = new Common.ClientClasses.ClientRequestMessage(); **// **ERROR- "WinRTError: Class not registered"**** requestMessage.requestUri = actionRequest; requestMessage.method = "POST"; requestMessage.body = data ?

问题 I have a listview in my metro-app.I want to set a focus of last-item in my listview?How can I set a focus of a listview-item?Can anyone help me? Thank you. 回答1: You need to use the ListViews currentItem property: http://msdn.microsoft.com/en-us/library/windows/apps/hh700672.aspx Specifically, assign it an object with the index of the data item you want selected (from your data source), and the hasFocus and showFocus properties set: var yourListView = getYourListViewFromSomewhere();