Questions tagged [xap]

XAP is an XML-based declarative framework for building, deploying and maintaining rich, interactive Ajax powered web applications.

XAP is an XML-based declarative framework for building, deploying and maintaining rich, interactive Ajax powered web applications. XAP aims to reduce the need for scripting and help solve the development and maintenance challenges associated with large scale JavaScript programming.

Simple login screen:

<xal>
    <dialog>
        <horizontalBoxPane>
            <label text="Username"/>
            <textField id="username"/>
            <label text="Password"/>
            <textField id="password"/>
            <button text="login"
              onCommand="login-url"/>
        </horizontalBoxPane>
    </dialog>
</xal>

XAP is a complete framework for building Ajax applications. Whether you're building a large application with many screens or you simply want to enhance an existing website with Ajax, the XAP project can help get your project done quicker and easier.

More information available here.

191 questions
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New Silverlight app doesn't generate XAP

I have created a new Silverlight app and it created a XAp file under the CLientBin on the Server side. However after copying an existing project into the same folder and adding it to the solution, the XAP file is not being generated for the this…
Houman
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What setting in IIS that could cause XAP to download everytime when access the page from fresh IE?

I have a sample program which does nothing but Hello World. I open IE and go to my development environement and access the silverlight, it loads the XAP first time and then if I close IE and open again, XAP does not get downloaded. Since there are…
Nair
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Firefox 4.0 always refreshes the Silverlight XAP File

I've trouble with the new FireFox 4.0 Release. In my Website i hosted a Silverlight Object, named Visualisation. In Firefox 3.6, Chrome, IE 7, 8, 9 the Browsers load the XAP File Once and get it from cache if not then do a postback or re-enter the…
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XAML Parser cannot find resource within dynamically loaded XAP when creating form instance

I've followed Tim Heuer's video for dynamically loading other XAP's (into a 'master' Silverlight application), as well as some other links to tweak the loading of resources and am stuck on the particular issue of loading style resources from within…
Tom
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Windows Phone 8 Error - Installation of the application failed

I am working on a Windows Phone 8 project where we are deploying it as a company app through HockeyApp. I have a .PFX file generated from our Symantec cert and the correct .aetx file installed on the device. If I take the .XAP file I intend to…
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2 answers

WP8 - This package is using an app name that hasn't been reserved for this app

I am submitting Windows Phone 8 app to app store, when I click on Review And Submit I get the Error : This package is using an app name that hasn't been reserved for this app In my WPAppManifest.xml file : Display Name is : GS Value // just an…
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Testing .xap on windows phone 8, without registration

I have got a .xap file, i mailed it and opened it in my windows phone 8. It gives me company app error. Also i tried it with deployment in visual studio, it runs fine with emulator but problem with device(zune software not installed) whereas i have…
Pooja Shrigod
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How To Get App Path and Read Text File Windows Phone 7

My Question is very simple...I hope. I want to get the path of app built in Windows Phone 7. How to Read TEXT File that is placed in BIN folder of the project. Regards; Zeeshan Ahmed Khan
KhanZeeshan
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Solutions to protecting game high-scores

My friend proved it to me by taking the WP7 papertoss games and getting the .xap from it and then posting his own high scores. Is there any fool proof way to stop this ? (I think xbox live integration makes hacking the high scores impossible but…
punkouter
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silverlight XAP gets downloaded every time

I've just uploaded my silverlight webpage to my production webserver. The issue im having is that everytime I open the website in the browser it is downloading a new copy of the XAP. What could be causing this issue?
Matt
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How to get at ResourceDictionary style when it is loaded from external xap and assemblies are MEF-fed?

I've got the following setup: The main application loads a XAP with an IPlugin implementation. The Plugin contains a 'DisplayPanel' that contains a referenced Control with other controls. The DisplayPanel here is simply a container control to show…
Michaud
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How to include another assembly in a Windows Phone 8 XAP

I would like to include another assembly in my XAP for Windows Phone without referencing it directly (like a plugin system) so I can load it at runtime and activate types from it but I can't find any kind of reference on this. I mostly found out…
Andrei Rînea
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Get code from Silverlight publish?

Is there a way to get the code from a Silverlight publish? My laptop has completely crashed, and the only thing I have left from my application, is the published website. Is there a tool or something to get the code from my application?
Jordy
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Updating the XAP of a BETA app in Windows Phone marketplace

Is that possible to update the xap file submitted for BETA version in Windows Phone Marketplace. Will the link changes if I update the xap file for the same. ? Thanks, Harl
Harlborn
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Lighthouse (Silverlight Unit Test Runner) hangs then performs no tests -- why?

We are using Lighthouse to run unit tests on Silverlight 4 .xap files. Regularly, but seemingly randomly, on our build server it does the following: 10:18:08 C:\Program Files (x86)\Jenkins\jobs\******\workspace>Lighthouse.exe…
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