silverlight

问题 I'm trying to access the REST Disqus API using the following url: http://disqus.com/api/3.0/threads/listPosts.json ?api_key=myKey &forum=myForum &thread:ident=myIdent When I go to the url in Chrome, it works fine. When I try to download it in WebClient , I have difficulty: WebClient data = new WebClient(); Uri queryUri = new Uri(DisqusQuery + ident, UriKind.Absolute); data.DownloadStringCompleted += new DownloadStringCompletedEventHandler(onDownloadCompleted); data.DownloadStringAsync

问题 I want to put a cross button in my text boxes, for a wp7 app i am working on, something like this: http://silverscratch.blogspot.com/2010/03/watermarked-textbox-part-i.html I dont like this solution. I think there must be a better way. any ideas ? 回答1: Try the other article by the same author here (archive) It is a custom control rather than a user control. 来源： https://stackoverflow.com/questions/5722032/x-or-cross-inside-a-textbox-to-clear-the-text-box

问题 I am trying to print a Canvas that contains a glyph element using Silverlight 5's vector printing capacity. Everything works fine except that glyphs do not get printed. Are glyphs supported by vector printing? If so, what am I doing wrong? I am trying to print the following canvas that shows up correctly on the screen: <Canvas x:Name="canvasToPrint" Margin="-96,-34,0,0" Grid.ColumnSpan="2" Background="AliceBlue"> <Rectangle Fill="Blue" Width="39" Height="36"/> <Glyphs Name="a0" Fill="

问题 Has anyone written an event log that uses Isolated Storage in Silverlight 3? Any suggestions on implementing one? Specific questions: Should I keep a stream writer open, or should I open,write, and close for each entry? How should I remove items from the log atomically? 回答1: I heard clog from codeplex is pretty good although it targets wcf, i read on codeproject about about a log4net approach that works for silverlight, although both of these log 2 wcf services, im sure with a bit of tweaking

问题 Has anyone written an event log that uses Isolated Storage in Silverlight 3? Any suggestions on implementing one? Specific questions: Should I keep a stream writer open, or should I open,write, and close for each entry? How should I remove items from the log atomically? 回答1: I heard clog from codeplex is pretty good although it targets wcf, i read on codeproject about about a log4net approach that works for silverlight, although both of these log 2 wcf services, im sure with a bit of tweaking

问题 I am writing a Silverlight for Windows Phone (SDK 7.1) app and I am displaying data from a CompactSQL DB in a LongListSelector control from the Silverlight Toolkit for Windows Phone. Once the list becomes about 150 items long, The app really slows down loading data, navigating to and from pages and animations fail to display (I know using a background thread would help with freeing up the UI thread for animations). I currently have three queries that I use constantly - everytime the data from

问题 I'm new to WCF, RIA Services, and even Silverlight for the most part. I need to know how to increase the amount of data that I can pass back from a RIA service. I know that I need to create summary lists and I am being smart about how I request data. I can't use paging because I've archetected myself into a corner, and it would be way too much refactoring at this point. I just need to double the limit of data coming back. My requests are fairly small. How can I do this, and also why is this

问题 What's considered "best practice" when performing data validation while using ReactiveUI ? Let's say I have a view model that looks like this: public class MyViewModel: ReactiveObject { public ReactiveAsyncCommand SaveMyDataCommand { get; protected set; } private string _email; public string Email { get { return _email; } set { _email = value; raisePropertyChanged("Email"); } } private string _name; public string Name { get { return _name; } set { _name= value; raisePropertyChanged("Name"); }

问题 How can I stream video from live webcam with Silverlight? Not from my camera, but transmit from some live camera I found in internet (for example, http: //ac.lido.lv/kamera.php?lang=ru or http://pendelcam.kip.uni-heidelberg.de/axis-cgi/mjpg/video.cgi?resolution=640x480) 来源： https://stackoverflow.com/questions/4575390/how-to-display-a-live-streaming-video-via-silverlight

问题 This article from Microsoft: Guide to Universal Windows Platform (UWP) apps states that you can convert your classic desktop application (like Win32, Windows Forms, and WPF) or game to a Universal Windows Platform (UWP) app or game . Can the same be achieved for a Silverlight out-of-browser application? 回答1: Unfortunately there is no easy and fully automated way to port your Silverlight app to UWP mostly because the API footprint has changed and updated between the 2 platforms. There are a