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• CrossDomain error

  - by Jayesh

  Hi, I have hosted my Silverlight application in IIS, now when I try to access the application I get the following error System.ServiceModel.CommunicationException: an error occured while trying to make request to URI This could be due to attempting to access a service in a cross-domain way without proper cross-domain policy in place, or policy that is unsuitable for SOAP services..... I have placed the cross-domain policy properly in wwwroot as well as in the virtual directory. <?xml version="1.0"?> <cross-domain-policy> <allow-http-request-headers-from domain="*" headers="*"/> </cross-domain-policy> Please help! Thanks

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• Cross-domain REST proxy with Javascript, HTML5

  - by Bosh

  I'm writing a service (say, service.com) that provides a REST API to external apps running inside of IFrames. (These apps are hosted from domains outside the service.com). I'm planning a javascript client library for the apps to make pure-javascript requests to the service.com REST API -- basically using postMessage and some ad-hoc encapsulation of my API calls to get messages back and forth across frames (from the outside-app.com IFrame -- service.com REST API, and back to the IFrame with a response). My question: is there any robust, general-purpose javascript library to accomplish the kind of cross-domain REST request proxying I need, or should I just hack it from scratch?

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• Listview Cancel/Update causes Failed Veiwstate Error

  - by ChiliYago

  I am utilizing a asp.net Listview control which is causing a Failed to load viewstate error after a row is put in edit mode and the user clicks either update or cancel. The ListView control is in an ascx User control that is hosted in a parent aspx page. The parent aspx code-behind calls the a bind method on the ascx page which in turn binds the ListView. I am trying to isolate where and how this is happening but have not had any success and frankly I am out of ideas. Please offer some suggestions on what I should be looking at. Thank you.

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• Distributing WPF apps to a legacy user base: How seamless is it?

  - by Christian Nunciato

  I'm considering developing a WPF application, to be hosted by a legacy Windows app (C++), and I'm trying to get a better sense of how feasible it'll be to do so, given the broad user base I'm targeting. Knowing WPF targets .NET 3.5, I'm looking for some insight as to what the field looks like right now -- who's already got the runtime, whether it's distributed by Windows Update, if so, how (e.g., as an optional or required download, to which operating systems, etc.), whether XP pre-XP2 supports it (and how), and so on. The current version's got many thousands of users, using all manner of Windows operating systems, and while I'd very much like to leverage WPF to breathe some life into their user experience, I want to make sure I'm not shutting anyone out by doing so, or burdening them with a download they might have to do manually. I realize most, or all, of this information's out there already, in various places, but I figured I'd ask here first, since I'm sure some of you've probably already gone down this road and have valuable experiences to share. Thanks in advance!

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• IIS 7.0 - Every site suddenly redirecting root request to forms authentication

  - by Pittsburgh DBA

  Suddenly, IIS 7.0 is redirecting every request for the root of any domain hosted on the box to ~/Account/Logon, which is our Forms Authentication redirect. Additionally, some JavaScript and image requests are being similarly redirected, but not other aspx pages. This is not desirable. Nobody will admit to changing anything. Any ideas? EDIT: It turns out that something has gone wrong with the disk permissions. Can anyone point me to the way things are supposed to be in Windows Server 2008 for a standard ASP.Net installation? The disk permissions are out of whack now.

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• WCF Callback Contract Fiddler Debugging

  - by DavyMac23

  I'm trying to debug a WCF self-hosted service utilizing callbacks. Every 1/2 I make a callback to a SL3 app to display the latest changes (yes, there are tons of changes every 1/2 second). There are 3 services, one has new data every 1/2 second, one has new data every second, and another has new data every hour. I've set all of my timeouts, Send, Receive, Open and Close to 2 days 23 hours and 23 minutes, but I still get time out errors on the service side when I go to issue the callback. I'm using Fiddler and I notice that my service that has new data every hour is still showing up every 10 seconds. Fiddlier shows a Body length of -1, then 10 seconds later it changes to 0 and the response is HTTP 200, but the overall elapsed time is 10 seconds. What's going on here?

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• What are good educational resources for setting up .Net Webservice on a DMZ connecting to SQL Server

  - by Brian

  We are going to begin implementing a web service that will be hosted on a DMZ server. This web server will post data to a SQL server and we're trying to determine the best methodology to handle this. Things that concern us are web service authentication, SOAP, and whether or not to store the database on the DMZ or the local network. This same scenario will apply to ASP.Net apps. Trust me, I've already searched the web, but as usual, the online resources I've found either talk about just authentication, or just about SOAP, or etc, but does not show or suggest how the entire system can work together. Can you give me a list of resources such as links that I've missed, books, classes, or etc that would help? Thank You.

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• Multiple Service Address Configs in WCF Silverlight App

  - by CraigS

  My team is building our first significant Silverlight application, using a 3 layered architecture and WCF. We have developed about 10 separate WCF services in the middle layer so far, and this number is only going to grow. Generally, the presentation layer (ie. the Silverlight app) is pointing to the services as hosted on our dev server. However, there are times when I want it to access the services from localhost - ie. the developers machine. Is there an easy way to change where the presentation layer is looking for the services? Is there some way of easily switching between options here?

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• Switching to a VPS

  - by Damian

  Well, I know absolutely nothing about the subject, so I really need help. I currently have a website running on google app-engine (Java) and I can't get it to what I want because of app engine's limitations (no full text search mainly). The traffic is low, never reached 15% of the free quota (around 1500 daily pageviews). I also have 3 sites in drupal hosted in a shared hosting service, and this is giving me problems, because the server speed is awful. The sites are VERY low trafic, but load times are bad, and I might need to add more sites for some clients, so this will only get worse. So, i'm planning to move all that to VPS. The question is, can I have 2 http servers running in the same VPS? because I will need Apache-php-drupal server and a java server (tomcat?). I have really no idea on this, so any tip will be very helpful to me. Thanks!

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• SVN Best practice for a "branch" of your main product ?

  - by Steffen

  At my job we develop websites - however now we're going to make a "whitelabelled" version of a site, which basically means it's the same site, however with a different logo and hosted on a different domain. Also it'll have minor graphical differences, but overall the engine is the same. My initial thought for keeping this in SVN, was to just make a branch for it - however I'm not quite certain if this could give me trouble later on. Normally I keep my branches somewhat short lived - mainly used for developing a new feature, without disturbing trunk. We need to be able to merge trunk changes into this "whitelabel" version, which I why I thought about branching it in the first place. So what's the best way to archive this ?

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• ImageMagick: Tiff to PDF from PHP

  - by Sheldon

  How can I convert 2 tiff images to PDF, I already knows how to get the image out of the DB, and I print it using echo and setting up the MIME type. But, right know I need to use a duplex printer option, so I need a way to generate a PDF from inside my PHP page, that PDF must containt both TIFF images (one per page) How can I do that? What do I need for php to work with that library. Thank you very much. EDIT: Is a self hosted app, I own the server (actually I'm using WAMP 2). I extract the images from the MySQL DB (stored using LONGBLOBS).

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• WCF Service Memory Leaks

  - by Mubashar Ahmad

  Dear Devs I have a very small wcf service hosted in a console app. [ServiceContract] public interface IService1 { [OperationContract] void DoService(); } [ServiceBehavior(InstanceContextMode=InstanceContextMode.PerCall)] public class Service1 : IService1 { public void DoService() { } } and its being called as using (ServiceReference1.Service1Client client = new ServiceReference1.Service1Client()) { client.DoService(new DoServiceRequest()); client.Close(); } Please remember that service is published on basicHttpBindings. Problem Now when i performed above client code in a loop of 1000 i found big difference between "All Heap bytes" and "Private Bytes" performance counters (i used .net memory profiler). After investigation i found some of the objects are not properly disposed following are the list of those objects (1000 undisposed instance were found -- equals to the client calls) (namespace for all of them is System.ServiceModel.Channels) HttpOutput.ListenerResponseHttpOutput.ListenerResponseOutputStream BodyWriterMessage BufferedMessage HttpRequestContext.ListenerHttpContext.ListenerContextHttpInput.ListenerContextInputStream HttpRequestContext.ListenerHttpContext Questions Why do we have lot of undisposed objects and how to control them. Please Help

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• Redirect away from HTTPS with ASP.NET MVC App

  - by Amadiere

  I'm using ASP.NET MVC 2 and have a login page that is secured via HTTPS. To ensure that the user always accesses those pages via SSL, I've added the attribute [RequiresHttps] to the controller. This does the job perfectly. When they have successfully logged in, I'd like to redirect them back to HTTP version. However, there isn't a [RequiresHttp] attribute and I'm struggling to get my head around how I might achieve this. The added (potential) complication is that the website when in production is hosted at the route of the domain, but for development and testing purposes it is within a sub directory / virtual directory / application. Am I over-thinking this and is there an easy solution staring me in the face? Or is it a little more complex?

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• mongodb read/write performance and mongo hosting in the cloud

  - by z3cko

  we are currently developing a high traffic rails application with facebooker (facebook game). since amazon simpledb (aws-sdb) is really slow, we are thinking of using a dedicated mongodb server as offered by mongoHQ for example. questions: what is the read/writes peak value for a mongodb server running on a amazon ec2 instance? what would be a recommended setup for a ec2 hosted app with mongodb - a master on amazon EBS and replicas on the ec2 instances? any examples or experiences? is there a company that offers mongodb hosting in the cloud? thanks, mz

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• Will client JVM for a web service(https) throw an SSL Exception when the server is having a valid ce

  - by ring bearer

  I have a web service deployed on tomcat hosted on a remote server. I have set it up such that it can be accessed only via HTTPS. For this, I generated a Certificate Signing Request (CSR) and used it to get a temporary certificate from VeriSign. My web service client is on my local machine. If I try to access the service it will throw a javax.net.ssl.SSLHandshakeException:unable to find valid certification path to requested target If I install the certificate in to local Java's keystore, the issue will be resolved. My question is if I install a valid SSL certificate from a CA in to my tomcat server, will I get this client-side error even if I do not import the certificate to local key store?

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• Is there a way for IIS6 to do http and https together in the same site?

  - by puffpio

  The site needs to be accessible both from HTTP and HTTPS (in case the client wants the form submissions to be secure or not) The site is hosted in IIS6 and ideally I'd like to be able to just have one website in there and it can handle both http and https..is this possible? alternatively i was thinking maybe creating a "secure" subdirectory in the site and duplicating everything in there as well..is that feasible? this is further complicated that it is using asp.net 3.5's routing ability to do url rewrites so even if I create a secure subdirectory, i dunno if it will actually pick up that it's supposed to be SSL approved

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• How can I translate my programmatic WCF configuration into app.config

  - by ofer

  Hi, I have an self hosted WCF server with hard coded configurations. the server worked fine until I tried to implement some new functionality. the new setting did not work (urrr.... ) and I find it hard to locate where are the problems in my code. instead of digging inside the code, I thought about different approach: Is there any way to dump those hard coded WCF configuration (the entire ) into app.config like text file after all configurations are loaded? this will enable me to have a easy global view of the entire settings .. mmm .. .by the way, does anyone know a way that will do the translation to the opposite direction? config to code. Any advice will be welcomed! ofer

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• why my website display in FB Login window After Login through facebook?

  - by Vaibhav Bhalke

  Hi All I am Integrating Face book application with Our Website. My Website is in Java's [Google Web Toolkit] Framework 2.0.1 When we press FB-connect connect then FB's Login window comes, after that user enters email & pwd. When user clicks FB's connect button then Our website display in that Login window. Authentication and Connect Url is Proper http://localhost:8090/websitename/ How to solve this problem ? Where I did mistake ? Is there any solution? When I did same thing in GWT's development/Hosted mode with Authentication and Connect url http:/127.0.0.1:8888/ then works properly. Then why It create Probelm in localhost? :-/

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• Some questions about setting up Amazon S3 with Ruby on Rails

  - by ben

  I'm trying to setup Amazon S3 hosting with my Ruby on Rails 3 app, which is hosted on Heroku. After reading these instructions in the Heroku docs, I'm trying to use the aws-s3 gem. The instructions say to put the S3 account details in config/amazon_s3.yml, but the aws-s3 Github page says you create a connection like this: AWS::S3::Base.establish_connection!( :access_key_id => 'abc', :secret_access_key => '123' ) Why is the connection created by providing the details if they're already provided in the config file? Is that not the correct way to establish a connection? Do I have to establish a connection for each user everytime an upload is about to occur, or is a connection established for the application as a whole? Thanks for reading.

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• Placing Select Folders Under Version Control

  - by Jonah

  Hi, I have an SVN repository on my hosted server (linux), and I need to do local work on them on my windows machine (tortoise svn installed). To simplify my question, the dir structure looks like: root |--------sub1 |--------sub2 |--------sub3 ... |--------subN with additional subfolders under each subX. Say I only want certain sub-subfolders of "sub1" and "sub3" under version control. But on windows, when I commit a change with tortoisesvn, I still want to be able to right click the root folder, hit commit, and have any changes that exist anywhere under root in any selected folders to be committed. The problem is, I think using ignore would be very cumbersome, since there would be so many folders to ignore, at different levels of structure. So basically, I want to put the whole thing under version control, and then tell svn "ok, now ignore everything except X and Y". What is the easiest way to accomplish this? Thanks, Jonah

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• Rack::ResponseHeaders in rackup for Sinatra

  - by sevennineteen

  I think this is a very easy one, but I can't seem to get it right. Basically, I'm trying to use Rack middleware to set a default Cache-Control header into all responses served by my Sinatra app. It looks like Rack::ResponseHeaders should be able to do exactly what I need, but I get an error when attempting to use the syntax demonstrated here in my rackup file: use Rack::ResponseHeaders do |headers| headers['X-Foo'] = 'bar' headers.delete('X-Baz') end I was able to get Rack::Cache to work successfully as follows: use Rack::Cache, :default_ttl => 3600 However, this doesn't achieve exactly the output I want, whereas Rack::ResponseHeaders gives fine-grained control of the headers. FYI, my site is hosted on Heroku, and the required Rack gems are specified in my .gems manifest. Thanks! Update: After doing some research, it looks like the first issue is that Rack::ResponseHeaders is not found in the version of rack-contrib (0.9.2) which was installed. I'll start by looking into that.

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• How to organize Enterprise scale Composite Applications (CAG)

  - by David

  All QuickStarts and RI examples in the CAG documentation are good but I lack the more Enterprise scale examples. Let's say we have 40+ modules, each containing a Proxy,Facade,PresentationModel,Model and Views. Each module also makes calls to a Module-specific WCF service which is to be hosted in IIS or in a stand-alone console host. Our approach have been to include the UI-module, service-module and related tests into one solution so they can be developed and tested separately from other modules. My problem is how the hosting of the services should be done when the services are in separate modules and how to actually run the separate module together with the rest of the application-modules when I press F5. Is there a best practise for this? I guess it has been done before?

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• External Javascript Timeout

  - by yummm

  I have a number of tracking scripts and web services installed on my website and I noticed when one of the services goes down, it still tries to call the external javascript file hosted on a different server. In Firefox, Chrome and other new browsers, there doesn't seem to be any issues when one of the services go down. However, in IE7 and IE8, my pages don't load all the way and time out before everything is displayed. Is there any way to add a time out on these javascript calls to prevent them from breaking my pages when they go down?

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• How do I consume a COM+ local server from C#?

  - by Mystere Man

  I have a web application from a company that has gone out of business. We're looking to extend the web app a bit with some asp.net functionality. The web app was written as an ISAPI application in Delphi, and uses COM+ to talk to the SQL Server and handles things like session management and authentication. So, in order to get the current user and other details, I have to use the undocument COM+ components. I was able to dig out the type library and auto generated IDL, but at this point i'm lost in creating a .NET proxy class for this. Is there a way to autogenerate the .net COM+ proxy either from the .dll itself (extracting the typelib info) or from the IDL? Note: These seem to be simple COM style objects hosted in COM+ servers, no subscriptions or transaction monitoring..

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• Formatting code snippets for blogging on Blogger

  - by nzpcmad

  My blog is hosted on Blogger and I frequently post code snippets in C / C# / Java / XML etc. but I find the snippet gets "mangled". Are there any web sites that I could use to parse the snippet beforehand and sort out the formatting, convert XML "<" to "<" etc. There are a numbers of questions around this area on SO but I couldn't find any that address this question directly. Edit: For @Rich answer, site states "To display the formatted code on your site, you need to get this CSS stylesheet, and add a reference to it in the section of your page". That's the problem - you can't do this on Blogger AFAIK.

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