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• Is "long polling" the most efficient way to create a Web Real Time App ?

  - by xRobot

  I want to create an application like this: http://typewith.me/2wicOjuefI What is the most efficient way to create this real time application ? Flash ? Long polling ? Http Streaming ? or anything else ? Thanks ;)

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• Moving from Windows to Ubuntu.

  - by djzmo

  Hello there, I used to program in Windows with Microsoft Visual C++ and I need to make some of my portable programs (written in portable C++) to be cross-platform, or at least I can release a working version of my program for both Linux and Windows. I am total newcomer in Linux application development (and rarely use the OS itself). So, today, I installed Ubuntu 10.04 LTS (through Wubi) and equipped Code::Blocks with the g++ compiler as my main weapon. Then I compiled my very first Hello World linux program, and I confused about the output program. I can run my program through the "Build and Run" menu option in Code::Blocks, but when I tried to launch the compiled application externally through a File Browser (in /media/MyNTFSPartition/MyProject/bin/Release; yes, I saved it in my NTFS partition), the program didn't show up. Why? I ran out of idea. I need to change my Windows and Microsoft Visual Studio mindset to Linux and Code::Blocks mindset. So I came up with these questions: How can I execute my compiled linux programs externally (outside IDE)? In Windows, I simply run the generated executable (.exe) file How can I distribute my linux application? In Windows, I simply distribute the executable files with the corresponding DLL files (if any) What is the equivalent of LIBs (static library) and DLLs (dynamic library) in linux and how to use them? In Windows/Visual Studio, I simply add the required libraries to the Additional Dependencies in the Project Settings, and my program will automatically link with the required static library(-ies)/DLLs. Is it possible to use the "binary form" of a C++ library (if provided) so that I wouldn't need to recompile the entire library source code? In Windows, yes. Sometimes precompiled *.lib files are provided. If I want to create a wxWidgets application in Linux, which package should I pick for Ubuntu? wxGTK or wxX11? Can I run wxGTK program under X11? In Windows, I use wxMSW, Of course. If question no. 4 is answered possible, are precompiled wxX11/wxGTK library exists out there? Haven't tried deep google search. In Windows, there is a project called "wxPack" (http://wxpack.sourceforge.net/) that saves a lot of my time. Sorry for asking many questions, but I am really confused on these linux development fundamentals. Any kind of help would be appreciated =) Thanks.

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• Silverlight or MVC for Web Development

  - by jhorback

  I was just wondering about the opinions out there. What do you think promotes faster development times for a web application? Silverlight or .Net MVC? And could Silverlight be a replacement for a true http web application? Feel free to rant or give as much details as necessary.

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• Other use for a Hibernate Mapping file

  - by eerik

  I am trying to define db dependency for a web based application, and was thinking that perhaps the hibernate mappings used in the application might be importable into some sort of tool to produce a visual ERD diagram. Has anyone tried something like this?

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• C#: Update datagrid

  - by Bi

  I have a C# application with a datagrid in windows form. I need to monitor a directory (am using FileSystemWatcher) and refresh the datagrid with list of files in the directory. I am not sure how I can set up the interface to do so? Calling the monitorDirectory() from the windows-form Load() does not seem to work as Load is called only once in the application. Thanks

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• Soap Header Problem

  - by aju982007

  I have a Java Secured Webservice With Soap Header Protection Must Provide Username and Password. My Application is C# Client Application Can i call Java Secured Webservice using C# code what is the code for that ? When i connect this webservice its showing SoapHeader Element Required ..Please Give the Solution

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• Keeping track of business rules within IT department?

  - by evaldas-alexander

  I am looking for the best way to keep track of the business rules for both developers and everybody else (support staff / management) in a startup enviroment. The challenge is that our business model requires quite a lot of different business rules, which are created pretty much on the fly and evolving organically after that. After running this project for 3+ years, we have so many of such rules that often the only way to be sure about what the application is supposed to do in a certain situation is to go find the module responsible for that process and analyze its code and comments. That is all fine as long as you have one single developer who created the entire application from the scratch, but every new developer needs to go over pretty much entire codebase in order to understand how the application works. Even bigger problem is that non technical employees don't even have that option and therefore are forced to ask me pretty much every day how some certain case would be handled by the application. Quick example - we only start charging for our customer campaigns once they have been active for at least 72 hours, but at the same time we stop creating invoices for campaigns that belong to insolvent accounts and close such accounts within a month of the first failed charge. That does not apply to accounts that are set to "non-chargeable" which most commonly belongs to us since we are using the service ourselves. The invoices are created on the 1st of each month and include charges from the previous month + any current balance that the account might have. However, some customers are charged only 4 days after their invoice has been generated due to issues with their billing department. In addition to that, invoices are also created when customer deactivates his campaign, but that can only be done once the campaign is not longer under mandatory 6 month contract, unless account manager approves early deactivation. I know, that's quite a lot of rules that need to be taken into account when answering a question "when do we bill our customers", but actually I could still append an asterisk at the end of each sentence in order to disclose some rare exceptions. Of course, it would be easiest just to keep the business rules to the minimum, but we need to adapt to changing marketplace - i.e. less than a year ago we had no contracts whatsoever. One idea that I had so far was a simplistic wiki with categories corresponding to areas such as "Account activation", "Invoicing", "Collection procedures" and so on. Another idea would be to have giant interactive flowchart showing the entire customer "life cycle" from prospecting to account deactivation. What are your experiences / suggestions?

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• .Net adding a prefix ctl00_CPHPageContents_ to control IDs

  - by eFriend

  I have an asp.net C# web forms application in .net framework 4 In my pages, when I view html source it changes control IDs to something like ctl00_CPHPageContents_txtUserID actually it is txtUserID This application was first in Framework 3.5 and IDs were generated like CPHPageContents_txtUserID So, in short, in Framework 3.5 Id was CPHPageContents_txtUserID and now in Framework 4 ID is ctl00_CPHPageContents_txtUserID which is breaking our automation tests. Can I remove this ctl00 added by Framework 4?

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• Can you authenticate Facebook Graph entirely from command line with Python?

  - by Sebastian

  I'm writing a (tabbed) application for Facebook that requires a background process to run on a server and, periodically, upload images to an album on this application's page. What I'm trying to do is create a script that will: a) authenticate me with the program b) upload an image to a specific album All of this entirely from the command line and completely with the new Graph API. My problem right now is trying to locate the documentation that will allow me to get a token without a pop-up window of sorts. Thoughts?

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• How do I turn an array of bytes back into a file and open it automatically with C#?

  - by Ace Grace

  Hi, I am writing some code to add file attachments into an application I am building. I have add & Remove working but I don't know where to start to implement open. I have an array of bytes (from a table field) and I don't know how to make it automatically open e.g. If I have an array of bytes which is a PDF, how do I get my app to automatically open Acrobat or whatever the currently assigned application for the extension is using C#?

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• Help with saving or adding more than 4000 words to a List<T> in .NET

  - by Jepe d Hepe

  I need help with my application where i save a bunch of words like more than 4000 words or more in a List<[class name]. My problem is, as the number of words increases, the process in saving it in the list seems to go slower and the application uses a lot more of memory. Can you give me an advise or alternative to do this without affecting the speed of the process?

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• VB - Server communication

  - by Bubby4j

  How would I make a Visual Basic application talk to a web server? Someone will press something on the site and I want the application to display the information that the web site passes along to it.

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• ASP.NET MVC Default URL View

  - by Moose Factory

  I'm trying to set the Default URL of my MVC application to a view within an area of my application. The area is called "Common", the controller "Home" and the view "Index". I've tried setting the defaultUrl in the forms section of web.config to "~/Common/Home/Index" with no success. I've also tried mapping a new route in global.asax, thus: routes.MapRoute( "Area", "{area}/{controller}/{action}/{id}", new { area = "Common", controller = "Home", action = "Index", id = "" } ); Again, to no avail.

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• How to list Activities which match an intent?

  - by Adam

  I have a few separate applications which are all launched purely through a main application. I am wondering if I'd be able to use intents to retrieve a list of all the sub-applications which match some discovery intent. The main application currently needs to know what Intents to use to START these sub-applications, but is there a way to use intents to see if other Activities on the device match a set of intent-filters?

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• Facebook app without asking permissions

  - by jpoz

  Hello, This seems like a pretty simple question but haven't found an answer anywhere: How do I make an app that doesn't ask for permission when you load it? Or is that impossible. The only thing the application is going to do is post to the users wall, but can't I authenticate them for that after they load the application? Thanks in advance for the help, JPoz

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• Destructor - does it get called if the app crashes

  - by Antonio Nakic Alfirevic

  Does a destructor get called if the app crashes? If it's an unhandled exception I'm guessing it does, but what about more serious errors, or something like a user killing the application process? And a few more potentially dumb questions: what happens to all the objects in an app when the app exits and all finalizers have been executed - do the objects get garbage collected or are they somehow all "unloaded" with the process or appdomain? is the garbage collector part of each application (runs in the same process) or is it independent?

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• How can I change my context root in WebWork?

  I am currently working on a huge web application consisting of JSPs. Also i use WebWork framework. Until now the context root of my application was "/". Now I want to change that to "nstat". How should I handle the relative and absolute calls from my JSPs?

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• C# - Sharing static data between multiple processes

  - by Murtaza Mandvi

  I have a WCF service (instantiated within a Console application on NetTCP), this service has static data (large volume) which gets instantiated on the load. I have multiple instances of this Console application running at once, and all of them are doing the same static data initialization , is there a way that I can have a single data source and share the data among processes so that each process does not have to consume large amount of memory?

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• django app with a generic name

  - by zaharpopov

  Django tutorials everywhere use constant-set application name all around - in urls file, in HTML templates, in views. But if I want to distribute an application and let the user sets it name (i.e. its URL postfix on http://server.com/appname) - how can I do? I must have some common name setting then in configuration, but how to work it for template files, etc?

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• facebook auto loggin

  - by sukitha

  I want to save the login information of Facebook after closing the application. So every time when user opens application, no need to login again. Is done by saving the session object into a plist? I'm using facebook connect. Thanks for the help

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• Rails engines extending functionality

  - by sinsiliux

  So I have an engine which defines some models and controllers. I want to be able to extend functionality of some models/controllers in my application (eg. adding methods) without loosing the original model/controller functionality from engine. Everywhere I read that you simply need to define controller with the same name in your application and Rails will automatically merge them, however it doesn't work for me and controller in engine is simply ignored (I don't think it's even loaded).

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• how to find copyright code???

  - by micheal

  hi all, we were maintaining an MS Access application. Person who actually developed the application used copyrighted code. Now we want to remove that code and re-write that logic. Problem is we dont know what is the copyrighted code and what is not. Is there any way or tool that can be used to scan through the existing code and flag the code that was directly got from internet and used? Thanks in advance.

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• How to send IM message like Skype in Android ?

  - by mob-king

  I have to build a feature in my application which allows user to send a skype message. For this I have installed skype lite client for Android (although offically the download has been currently withdrawn from Skype). Now how to initiate the activity from my application OR simply send the chat message without bringing it front, assuming I have skype installed in Android & also signed in already. Any help ? Thanks.

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• apache derby database

  - by mohit

  i am building a swing application with apache derby database as back end in netbeans 6.8 with my friend.He is making the databse in derby while i am making the front end i.e. frames. now how do i use database created by him in my project in netbeans 6.8 my motive is to how we insert a already build databse(from my friend's netbeans) into the the services tab of my application.

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• Get number of concurrent users online - ASP.NET

  - by Srikanth

  I would like to know the number of users logged into my ASP.NET 2.0 application. Points to be considered: 1) Simplest way would be to use Application or Cache object to have the counts on Session start or end. However this would fail if there is a worker process recycle. Wouldn't it? 2) Should't make a difference whether the session is inproc/state server managed/ or SQL server managed. 3) Should preferably be seamless to a web-farm architecture.

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