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  • Three Silverlight 4 issues

    - by Muhammad Jamal Shaikh
    Silverlight version : 4 Silverlight patter :MVVM Visual Studio template :Silverlight navigation application How do I block main navigation on (mainpage.xaml) as in any silverlight navigation application and block page's controls ( i.e whichever page is it in ) during async webservice calls? Any best practices? How do I deal with the browser's forward and backward buttons, specially during async calls? How do I deal with dialogs on the views ( e.g when using a childwindow to select a color). How should the color's picker control hex be communicated to the viewmodel?

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  • Upload image from Silverlight to ASP .net MVC 2.0 Action

    - by Raha
    Hello ... I have been trying really hard to Upload a photo from a Silverlight app to ASP .net MVC app. I simply use WebClient like this in Silverlight : private bool UploadFile(string fileName, Stream data) { try { UriBuilder ub = new UriBuilder("http://localhost:59933/Admin/Upload"); ub.Query = string.Format("filename={0}", fileName); WebClient wc = new WebClient(); wc.OpenReadCompleted += (sender, e) => { PushData(data, e.Result); e.Result.Close(); data.Close(); }; wc.OpenWriteAsync(ub.Uri); } catch (Exception) { throw; } return true; } private void PushData(Stream input, Stream output) { byte[] buffer = new byte[4096]; int byteRead; while ((byteRead = input.Read(buffer, 0, buffer.Length)) != 0) { output.Write(buffer, 0, byteRead); } } On the other hand I have created a simple action called Upload like this: [AcceptVerbs(HttpVerbs.Post)] public ActionResult Upload() { //Some code here } The problem is that it doesn't hit the break point in Upload method. Is this even possible ? The reason why I am using Silverlight is that I want to preview the image before uploading it to server and it is very simple in Silverlight. I failed to do that in JavaScript and that is why Silverlight might be more useful here.

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  • Real Silverlight Support on Windows Embedded Compact 7?

    - by Joe Wood
    So Windows Embedded Compact 7 (another classic from the naming department) supports Silverlight for Windows Embedded. http://www.microsoft.com/windowsembedded/en-us/products/windowsce/compact7.mspx But this is a C++ only stripped down version of Silverlight 2 XAML. Does anybody know if Windows Embedded Compact 7 will support real Silverlight? This seems to be out of step with Windows Phone (which I think is based on Windows CE 6) and the fact that Windows Embedded Compact 7 supports Flash 10.1.

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  • How to make Facebook Authentication from Silverlight secure?

    - by SondreB
    I have the following scenario I want to complete: Website running some HTTP(S) services that returns data for a user. Same website is additionally hosting a Silverlight 4 app which calls these services. The Silverlight app is integrating with Facebook using the Facebook Developer Toolkit (http://facebooktoolkit.codeplex.com/). I have not fully decided whether I want Facebook-integration to be a "opt-in" option such as Spotify, or if I want to "lock" down my service with Facebook-only authentication. That's another discussion. How do I protect my API Key and Secret that I receive from Facebook in a Silverlight app? To me it's obvious that this is impossible as the code is running on the client, but is there a way I can make it harder or should I just live with the fact that third parties could potentially "act" as my own app? Using the Facebook Developer Toolkit, there is a following C# method in Silverlight that is executed from the JavaScript when the user has fully authenticated with Facebook using the Facebook Connect APIs. [ScriptableMember] public void LoggedIn(string sessionKey, string secret, int expires, long userId) { this.SessionKey = sessionKey; this.UserId = userId; Obvious the problem here is the fact that JavaScript is injection the userId, which is nothing but a simple number. This means anyone could potentially inject a different userId in JavaScript and have my app think it's someone else. This means someone could hijack the data within the services running on my website. The alternative that comes to mind is authenticating the users on my website, this way I'm never exposing any secrets and I can return an auth-cookie to the users after the initial authentication. Though this scenario doesn't work very well in an out-of-browser scenario where the user is running the Silverlight app locally and not from my website.

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  • Silverlight 4 Drag and Drop Alternatives

    - by Eric J.
    I want to add the ability to drag a user control from one part of a Silverlight 4 page onto another user control on the same page (not talking about the new Silverlight 4 ability to drag a file from the OS onto the page). What approach is most straightforward? What approach offers the most flexibility? Here are some alternatives I found so far SO drag-and-drop-control-for-silverlight. Same question but answers apply to SL 2. Alex van Beek's DragManager. Written for SL3. Silverlight Drag Drop. Also written for SL3.

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  • Displaying a DHTML layer over a Silverlight UI...

    - by Kevin Grossnicklaus
    I have a MOSS 2007 publishing site which incorporates some Silverlight components on various pages. Beyond a few areas the rest of the site is SharePoint and ASPX (i.e. standard HTML/javascript). I'm looking at incorporating a dynamic/dropdown menu to the main navigation. Unfortunately on a few of the pages the menu sits close to a Silverlight area and, when a menu is pulled down it falls "behind" the Silverlight block. Is there something simple I'm not doing or is there a limitation that Silverlight always be on top of dynamic content displayed via the rest of the HTML DOM? Any ideas? -Kevin

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  • Unit testing "hybrid" WPF/Silverlight controls

    - by Alan Mendelevich
    I'm starting a new WPF/Silverlight custom control project and wanted to do unit testing on this one. However I'm a little confused about how to approach this. This control would be based on the same codebase for both WPF and Silverlight with minor forking using #ifs and partial classes to tame the differences. I guess I could write unit tests for WPF part with NUnit, MSTest, xUnit, etc. and for the Silverlight part with Silverlight Unit Test Framework but this doesn't sound very elegant to me. I'd have to either ignore testing identical code on one of the platforms and test only differing parts (which is not very trustworthy) or rewrite tests for 2 frameworks (which is annoying). Is this the right way to go? I'm wondering if there's some guidance, articles, tutorials out there on how to approach this task. Any pointers?

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  • DataGrid for WPF and Silverlight

    - by Lukas Cenovsky
    Is there a DataGrid component that behaves the same in WPF and Silverlight? There are some small differences in DataGrids from MS (WPF and Silverlight Toolkits). For example, while WPF version has CanUserAddRows property, Silverlight version does not.

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  • SilverLight WebApp Calling Webservice in the same solution

    - by Ben
    Hi, I have a website solution that is composed of a SilverLight Project and an ASP Site that contains an asmx Webservice. The SilverLight project calls various methods in the Webservice, and this works fine on my home PC. When i publish the site (using 123-Reg if that makes a difference), it appears that the SilverLight app is no longer able to call the webservice. I have tried debugging the app by pointing my local version of the site to my published webservice and i get a "policy" issue. I know that 123 Reg have .Net 3.5 running on their servers, so i would assume that the site should "just work" when i publish it. Am i making a hugely stupid assumption there? Is there anything that i can do to change the "policies" within my app? Or is there another way around what i am trying to do ( i need to keep the webservice, as i want for it to be used from other places, and dont really want to duplicate code and create the same methods within the SilverLight project). Thanks

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  • Silverlight audio components

    - by Shurup
    Do you know any good commertial or free audio / sound components that can be used in Silverlight (better on the client)? Desired features: visualizing (waveform, peakform etc., zoom, editing volume, pan, start and end markers etc.) editing (channels: volume, pan, mute, fading, etc., merge, cut, copy, paste, etc., effects) mixing different sound tracks, creating a downmix exporting result in some in Silverlight usable (compressed) formats Some useful projects that I've founded: Saluse MediaKit for Silverlight (MP3 decoder, AudioPreProcessor, visualizers, effects) Microsoft Design Toolbox sound mixer (incl. source code and video) and Demo

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  • Debug Deserialization on Silverlight Client

    - by Andrew Garrison
    I'm working on a Silverlight client that interacts with a WCF web service. The Silverlight client and the WCF web service are using the same class library for their data entities that they are passing back and forth over the wire. I just added a new entity, and it's not being correctly deserialized on the Silverlight client. My question is, how can I debug the System.ServiceModel.ClientBase as it is deserializing an entity that it received from a WCF web service?

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  • Auto resize silverlight 3 appilcations

    - by bplus
    I've been trying to get a silverlight 3 application to automatically resize when rows are added to datagrids. I've tried this example but I just get a System.ExecutionEngineException with a null inner exeception. I think this is aimed at silverlight 2 only. Can anyone tell me how to do this in silverlight 3? Any help on this would be much appreciated.

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  • Using ASP.NET session state with Silverlight (PRISM)

    - by Jon Andersen
    Hi, The scenario: I have a PRISM application developed in Silverlight (4), and I'm using a ASP.NET server side application to host several web-services (which, in turn, accesses WCF-services, but that's not really important here). The Silverlight application must be able to call the web services cross-domain (meaning that the web services isn't necessarily on the same server hosting the silverlight application). The Silverlight application consists of several modules, each accessing the ASP.NET web-services. I do not have much experience with Silverlight and PRISM, but as far as I can see, this is not a very unusual scenario... The problem: My challange is, that when 2 different modules access the web-services, I get 2 new sessions on the web-server. I would have thought that since both modules live on the same HTML-page (and then also in the same browser session), they would get the same session on the web-server...? I have tried to make the web-service Proxy-client globally available in the container (using Unity), by registering an instance (using Container.RegisterInstance), and then getting this instance whenever a module needs to make a web-service call (using Container.Resolve), but this doesn't seem to help. However, any calls made within the same module always gets the same session on the server. Can anyone see what I'm missing here...? Thanks! Jon

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  • Silverlight data-driven application with NHibernate

    - by Tigraine
    Hi Guys, this is more of a subjective Question, but I'll ask it anyway. I'm about to develop a very data-centric application that has to run inside the browser. The frontend will be Silverlight, backed by a Fluent NHibernate service that runs server side. The problem here is: Wherever I look for data-driven silverlight app I wind up finding Silverlight RIA services examples, but nothing on how to build this without some ADO.NET stuff involved. I have little to no knowledge in WCF so far, but from the limited research I did it seems like WCF is pretty much the only way to let the client talk to the server. Are there any tutorials/best practices on how to write a Silverlight MVVM app that provides CRUD for a non-EF database? Suggestions would be very much appreciated. Thanks PS: I can't use .NET remoting. The backend has to run on IIS6 :(

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  • Microsoft Public License in commercial Silverlight application?

    - by badra
    I'm developing a commercial silverlight application using some third party libraries that are published under Microsoft Public License (MPL). I have to include the license text into my product which is somewhat strange in an silverlight application. In a normal desktop application I would just include the license als a .txt but I've no idea how to do it in silverlight without including in in an about dialog or something similar. Are there any other issues involved which I missed?

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  • Silverlight and Search Engines

    - by Ben
    Hi, I have recently started learning SilverLight (and Web developement in general) and have been advised by a friend that SilverLight isn't Search engine friendly (because Silverlight isn't HTML). Is there any way of getting around this and getting my site onto the Search engine lists (without paying)? (Any advise on getting my site on search engines lists would be greatly appreciated). Thanks

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  • silverlight vs ASP.NET MVC

    - by magellings
    I'm debating whether to use Silverlight 2.0 vs ASP.NET MVC for a web application. The web application will be a subscription free service marketing all age groups. It's important the source is highly testable, but also with the Web 2.0 movement a graphical web application is important as well for competitive reasons. I'm assuming silverlight is better than the ajax helpers/MVC graphically, but foundation-wise testing is better/easier with MVC. Possibly an MVP pattern with Silverlight could increase the testability of the source. Could anyone elaborate on the pros/cons of each technology and recommend one or the other based on the above? (addition 9/22/08) In regards to allowing search engines to index the site, using either technology it will utilize a backend database whereas a lot of the content will be dynamically generated. Based on some of the comments, when we talk of the searchable content would the home page of the application if written in silverlight be searchable? Would I be able to get the site to appear in a google search?

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  • How to measure Silverlight or Flash control load time with Google Analytics

    - by ddehghan
    Hi everyone I have a simple silverlight page for for finding available domain names. This problem is equaly valid for a flash control as well. I use Google Analytics for monitoring the traffic. I would like to find out how long it take for users to download and render the Silverlight control. Once the java script on a page is loaded there should be a way to start a timer and then stop the timer once the Silverlight/flash control is loaded. Key points I would like to measure are: Time it takes to download the silverlight/flash control Time it takes to initialize the control Thanks

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  • Silverlight debugging, no list element view

    - by Snake
    When I'm debugging my Silverlight Appliction and I'm using a list internally I cannot hover over the list and see the items inside the list. I just see the RAW view of the list. If I want to see the items I have to write my own code which is tedious. Is this something normal to Silverlight? I DO have the correct list view when debugging in normal Console/WPF/... applications. Example: Silverlight: (link: click) See how there is no 'list view in the first example? And there in this one: And for non Silverlight: (link: click)

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  • Could not laod file or assembly ‘System.Web.Silverlight’

    - by Adam Berent
    I really need some help with this as I have been trying to fix this for months and I can't figure it out. I run an online chess site written in Silverlight 3.0 The architecture is Silverlight Client connecting to a WCF service that reads and writes data to a SQL Server database. It is hosted on Godaddy, Once every so often I get the following error: Could not laod file or assembly ‘System.Web.Silverlight’ or one of its dependencies. The system cannot find the path specified. If I leave it alone it will fix itself after a few hours, however usually I just make a new publish of my application and it goes away. Also all the pages in the solution get this message not just the Silverlight application. So I have an aspx page with top ranks that does not use Silverlight but is in the same solution it also gets the same error. Its almost like the whole site dies. This does not seem like a huge issue but it makes going on vacation hard since my site can go down at any time I am away. Also this seems to happen the most when I am sleeping so I often don't get to fixing it until I have already lost hours of potential logins. If you have had the same issue please, please help!

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