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• '-respondsToSelector:' not found in protocol(s)

  - by Gyozo Kudor

  Hello i have received this message ever since i started building my first iphone program several months ago. I check if a delegate implements a given method. It works but I get this warning. How can i do it the correct way? Thanks in advance.

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• String encryption in C# and Objective c

  - by nbojja

  Hi All, I am building a iPhone app which uses c# web services. My c# web services takes user details and validates against my DB and returns xml files. So Now the issue is how to encrypt user details(username and password are 10chars each) in objective c and decrypt in C#. I am very new to cryptography, which method is the best. will it be possible to encrypt in Objective c and Decrypt in C#. thanks..

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• xcode 3.2 c++: how can i enable a proper code completion?

  - by ufk

  Hiya. I have snow leopard and I'm building a cpp Application with xcode. I would like to be able to get proper code completion with xcode, and by that i mean the following: std::string f; f. just when I type f. i would like to see all the relevant functions to that string class. is it possible in xcode ?

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• Winforms &TimeSpan - Which control works best ?

  - by bernhardrusch

  I am building a form with winforms - and should add a view and editable time span value. Which controls works best for this ? A normal edit control shows the value correctly - but it's not really nice for changing values the normal date time picker doesn't work the masked edit control doesn't have got any standard mask for this Does anybody have a good idea for a control for this task ?

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• Adding "System.Data.SQLite" as refernce.

  - by subash

  hi all, when i was building my project done in asp.net & c#.net ,it produced the error as "The type or namespace name 'SQLite' does not exist in the namespace 'System.Data' (are you missing an assembly reference?" so, when i tried to add it as reference ,i was not able to find "System.Data.SQLite" in my library . how to overcome this problem.?

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• Zend Router Route Regex with Search params

  - by balan-mahadevan

  Hi , Trying to grab the params after ?. I need them to add to the Zend_Paginator. ex: http://www.example.com/test/show?name=xxx&age=20&sex=m Building a paginator for search results. Is there any solution for that ? $router = new Zend_Controller_Router_Route_Regex( 'test/show\?(.*)', array( 'controller' = 'test', 'action' = 'show', 'module' = 'user' ), array( 1 = 'q' ), 'test/show%s' ); $router_prev->addRoute('view',$router);

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• GCC 4.2 Build error

  - by Mr. Man

  Hi, i am building a C project with Xcode and when ever i build it it gives me this error: ld: duplicate symbol _detectLinux in /Users/markszymanski/Desktop/Programming/C/iTermOS/build/iTermOS.build/Debug/iTermOS.build/Objects-normal/i386/linuxDetect.o and /Users/markszymanski/Desktop/Programming/C/iTermOS/build/iTermOS.build/Debug/iTermOS.build/Objects-normal/i386/iTermOS.o Thanks!

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• Linq 2 Sybase ASE database? What are the options?

  - by Scott Weinstein

  I have a need to query an existing Sybase ASE database and would like to use Linq syntax for my data retrival. I don't need write access, nor do I need the full set of Linq operators, just Select(), SelectMany(), Where(), and GroupJoin() What are options are available? In particular, I'm wondering about nHibernate and building a new Linq2Sybase provider based on the IQ toolkit.

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• First Ruby on Rails App: use v3 (Beta) or 2.3?

  - by Marco

  Now that Rails 3.0 beta has been released, should I spend time building my first Rails application on 2.3 or does it make more sense to use the beta?

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• How to customize an installer's UI

  - by Kapil

  I am building an installer for my windows app and have done this through a setup/installer project in visual studio. I was wondering how to customize he UI of the finish dialog box? I want to add a couple of check-boxes and launch an app after the user closes the finish box. Is there a way to do this in Visual studio itself or does it require any other tools? If other tools are required then are any of them free? Thanks Kapil

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• Are iframes a terrible idea?

  - by jamtoday

  I'm building a widget, and I've been using iframes to present content within it. At some point, I might start serving third party HTML and JS, so I thought iframes would be a good idea. It does make the widget javascript a little more complicated, and I'm concerned that this might not be the best implementation. Do you have any advice? It would be a huge help to hear what other people think about iframes.

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• Crossbrowser XmlDsig

  - by m0sa

  I am building a web site where the user has to digitally sign a xml reciept to confirm that he recieved the package. I am currently doing this using a custom ActiveX control in IE. I was wondering if I could accomplish the same thing with/for other browsers. Is it even possible?

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• iPhone OS 4.0 backwards compatible with 3.1/.2

  - by Typeoneerror

  Title says it all. I'm building an iPhone application with a base SDK target of 3.1.x. I've got a friend who offered to test it on the OS 4.0 beta, but I'm wondering in advance if I should bother. Will my application run under 4.0 or is it not backwards compatible? I have to imagine it will since apps built for 2.x run on 3.x just fine AFAIK. Any gotchas?

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• iPad HTML Prototype: Which JS framework?

  - by Stefan

  Hi, are there any Javascript frameworks (such as iUI) for building iPad prototypes available? I have found nothing useful so far. Best, Stefan

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• Aletrnatives to MultiView in ASP.NET

  - by remdao

  Hi The website I'm building contains a large number of views which will be displayed on the same place but hidden or shown according to how the user navigates the menu. It gets quite messy in visual studios design view when you have a MultiView with 10 different views in it. I've already separated the content of each view in several user controls. But is there an alternative to MultiView?

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• Locate RFID tag using iPhone

  - by Dan

  Hi all, I am looking into building an app (on my laptop to start) that would be able to locate the signal emitted by an RFID tag (non passive). Say I attach this to my key ring, what would be required of the application to triangulate the location of the RFID tag in a 10m range. Would this even be possible using this technology? I see some older posts here so wondering if there have been any tech breakthroughs in this area since then? Dan

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• qt moc.exe error

  - by kaycee

  i'm using QT Creator 1.3.1 and trying to compile, but get this error... please help me get rid of it mingw32-make[1]: Leaving directory `C:/Documents and Settings/eyalk/My Documents/My QT Projects/XML' mingw32-make: Leaving directory `C:/Documents and Settings/eyalk/My Documents/My QT Projects/XML' 'C:/Qt/2010.02.1/qt/bin\moc.exe' is not recognized as an internal or external command, operable program or batch file. mingw32-make[1]: *** [debug/moc_mainwindow.cpp] Error 1 mingw32-make: *** [debug] Error 2 Exited with code 2. Error while building project XML When executing build step 'Make'

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• Database Design sugessition

  - by Manoj kumar

  I am in the plan of building a information service website similar to http://us.justdial.com/, I was in the confusion of designing the database. The datas stored in the database are List of categories Name of the company and its address, phone number, category, etc... (i am going to use MYSQL Database) how could i design the database that makes the accessing of those data easier ? Thanks in advance

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• Performance using T-SQL PIVOT vs SSIS PIVOT Transformation Component.

  - by Nev_Rahd

  Hi I am in process of building Dimension from EDW (source), wherein I need to pivot columns of source to load Dimension. Currently most of the pivoting stuff am doing is by using T-SQL PIVOT which further get used in my SSIS package to merge with Dim table This pivoting can also be achieved by SSIS PIVOT Transformation component. In regards to Performance which approach would be the best? Thanks

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• JMS/DDS Integration

  - by dalenkruse

  I have a legacy C++ application that uses DDS for asynchronous communication/messaging. I need to integrate this application into a JavaEE environment that uses JMS for messaging. Other than building a standalone JMS/DDS bridge module, are there any other options that I might have?

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• Widgets and .mobi sites, is this possible?

  - by Roland

  I have a couple of concerns, I'm busy building a normal .mobi site for a client, so basically how I understand this is keep it simply since most phones do not support JavaScript and have a small screen etc. So I build a mobi site using only content and basic links. Now my question is how do mobi widgets work on a mobile site? I've googled and could not find a answer? Is this possible at all?

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• php frameworks - build your own vs pre-made

  - by christopher-mccann

  Hi, I am building an application currently in PHP and I am trying to decide on whether to use a pre-existing framework like codeigniter or build my own framework. The application needs to be really scalable and I want to be completely in control of it which makes me think I should build my own but at the same time I dont want to reinvent the wheel if I dont have to. Any advice greatly appreciated. Thanks

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• microformats, rdf or microdata

  - by Shlomi.A.

  Hi. is there any difference between using one of this technologies? I'm building now a site using HTML5, and I'm having hard time to decide which of them to use. I cannot see any difference between them, else the syntax size, which i'm not quiet sure is an advantage for the microformats side.

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• Xcode: iPhone app codesign error

  - by Gabe Hollombe

  When building a new iPhone app in Xcode, I'm getting this error: codesign error: code signing identity 'iphone developer' does not match any code-signing certificate in your keychain. once added to the keychain, touch a file or clean the project to continue. What's the fix?

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• Gravatar : Is there a default image?

  - by Ritesh M Nayak

  I have implemented gravatar for a portal I am building and wanted to know if there is a default image URL for gravatar? Not all people who visit the site are logged in or have email addresses, in such a case, is there a default image that can be shown (accessible via gravatar url)

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