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  • What is the best way to limit text input entry to numbers, lowercase letters, and certain symbols?

    - by Adam Maras
    Without using jQuery, what is the best way to limit text entry of a textbox to numbers, lowercase letters and a given set of symbols (for example - and _)? If the user enters an uppercase letter, I would like it to be automatically converted to a lowercase letter, and if the user enters a symbol not within the given set, I would like to be able to instantly show a validation error (show some element adjacent to or below the text box). What's the cleanest cross-browser way of doing this without the aid of jQuery?

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  • Facebook charset detection mechanism?

    - by Void
    Today, I have looked into HTML code of facebook.com, and found something like this: <input type="hidden" value="€,´,€,´,?,?,?" name="charset_test"/> It's repeated two times inside the <form>...</form>. Any idea what this code might be useful for - some kind of server-side client charset detection? As far as I know, browser charset is being transmitted in HTTP request anyway (an "Accept-Charset" header).

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  • Problem with document.location.href

    - by novellino
    Hello, I am new to Javascript and Web development and I have a question regarding the document.location.href. I am using a cookie for storing the language the user prefers and then load the english or the swedish version depending on the language. The default language in the beginning is the same as the browser's language, and my index.jsp is the swedish one. The first time everything works fine. The problem is when the cookie exists already. The basic code is: if (language!=null && language!=""){ if (language=="en-US" || language=="en-us") document.location.href = "en/index.jsp"; } else{ //Explorer if (navigator.userLanguage) language = navigator.userLanguage; //other browsers else language = (navigator.language) ? navigator.language : navigator.userLanguage; if (language!=null && language!=""){ setCookie('language', language, 365, '/', 'onCheck'); if (language=="en-US" || language=="en-us") document.location.href = "en/index.jsp"; else if(language=="sv") document.location.href="index.jsp"; } } When the cookie exists we enter the first "if", and there, if the language is swedish it opens the default blabla/index.jsp page. When the language is set to engish it should open the blabla/en/index.jsp but instead it opens the blabla/en/en/index.jsp which of course is wrong. Does anyone know what I am doing wrong?? Thanks

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  • How to detect in a Flex app if a camera is already in use by another application?

    - by Alex Fisherr
    I am making an application that plays the video stream from the user's local system (both Windows and Mac). I use the Camera.getCamera() method and in turn Camera.names to get a list of camera attached with the system. Unfortunately, if the camera is already in use by another application, say a desktop application on user's system, the browser is crashed. Is there any way that I can detect if a specific camera from the list of available camera is already in use by any other application?

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  • UITouch Events and Table Views

    - by Andy
    I'm working on a navigation-based iPhone-only app that serves two main purposes: One, to present data in a hierarchical view, allowing users to drill down and eventually edit said data, and, two, to all users to perform a default action when the table view cell is tapped. I now need to offer a small set of options tied to the same data; however, both the didSelectRowAtIndexPath: and accessoryButtonTappedForRowAtIndexPath: methods are obviously taken. So, my options seem to be to implement a double-tap method, wherein the small list of additional options would be presented after (you guessed it) a double-tap on said table row; or, preferably, a tap-and-hold method. From what I can tell, tap-and-hold seems like the way to go in SDK 4.0 - which does me no good right this red-hot minute. I decided to go with the double-tap option, but I'm having a little trouble. First and foremost, the touchesBegan:withEvent: method does not seem to be getting called at all; a breakpoint placed within the method is never called while the application runs, and the table view responds exactly as it did before I inserted the method (which is to say, it performs the default action): - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *aTouch = [touches anyObject]; if (aTouch.tapCount == 2) { [NSObject cancelPreviousPerformRequestsWithTarget:self]; } } Second, I don't really need to handle a single-tap - the didSelectRowAtIndexPath: method can handle the single-tap just fine. The double-tap is the funky one I want to handle. I suspect the answer is going to contain the phrase, "You can't have the table view handle the single-tap and the touchesBegan: method handle the double-tap. The touch handling methods have to handle all of them." I would really appreciate some guidance from some of you who've dealt with this issue. Thanks in advance.

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  • Spring + Hessian on Tomcat

    - by ILya
    Hello. I have a task to write a web service with use of Hessian and Spring. Unfortunately there is not enough information so i can't make it work myself... Please can anyone write a simple Hello World for me? My version always shows 404 when accesing with browser... I'm new to java so if smb knows how to help tell me what files of my project to share. Thanks a lot!

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  • How to print unicode string in PHP

    - by Pentium10
    I have this small script: <? header('Content-Type: text/javascript; charset=utf8'); $s="L\u00e1szl\u00f3 M\u00e1rton"; echo $s; ?> The browser displays "L\u00e1szl\u00f3 M\u00e1rton" and it should display László Márton. What I am doing wrong?

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  • How do I configure multiple Ubuntu Python installations to avoid App Engine's SSL error?

    - by Linc
    I have Karmic Koala which has Python 2.6 installed by default. However I can't run any Python App Engine projects because they require Python 2.5 and python ssl. To install ssl I installed python2.5-dev first while following some instructions I found elsewhere. sudo apt-get install libssl-dev sudo apt-get install python-setuptools sudo apt-get install python2.5-dev sudo easy_install-2.5 pyopenssl However, I am afraid this is not good for my Ubuntu installation since Ubuntu expects to see version 2.6 of Python when you type 'python' on the command line. Instead, it says '2.5.5'. I tried to revert to the original default version of Python by doing this: sudo apt-get remove python2.5-dev But that didn't seem to do anything either - when I type 'python' on the command line it still say 2.5.5. And App Engine still doesn't work after all this. I continue to get an SSL-related error whenever I try to run my Python app: AttributeError: 'module' object has no attribute 'HTTPSHandler' UPDATE: Just checked whether SSL actually installed as a result of those commands by typing this: $ python2.5 Python 2.5.5 (r255:77872, Apr 29 2010, 23:59:20) [GCC 4.4.1] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import ssl Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named ssl >>> As you can see, SSL is still not installed, which explains the continuing App Engine error. If anyone knows how I can dig myself out of this hole, I would appreciate it.

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  • JBoss deployment throws 'java.util.zip.ZipException: error in opening zip file' on Linux?

    - by Kaushalya
    I thought of posting both the question and the answer for others' knowledge. I deployed a large EAR (contained more than ~1024 jars/wars) on JBoss running with Java 6 on Linux, and the deployment process cried throwing the following exception: java.lang.RuntimeException: java.util.zip.ZipException: error in opening zip file) at org.jboss.deployment.DeploymentException.rethrowAsDeploymentException(DeploymentException.java:53) at org.jboss.deployment.MainDeployer.init(MainDeployer.java:901) at org.jboss.deployment.MainDeployer.init(MainDeployer.java:895) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:809) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782) .... Caused by: java.lang.RuntimeException: java.util.zip.ZipException: error in opening zip file at org.jboss.util.file.JarArchiveBrowser.<init>(JarArchiveBrowser.java:74) at org.jboss.util.file.FileProtocolArchiveBrowserFactory.create(FileProtocolArchiveBrowserFactory.java:48) at org.jboss.util.file.ArchiveBrowser.getBrowser(ArchiveBrowser.java:57) at org.jboss.ejb3.EJB3Deployer.hasEjbAnnotation(EJB3Deployer.java:213) .... This was caused by the 'limit of number of open file descriptors' of Linux/Unix operating systems. The default is 1024. You can check the default value using: ulimit -n To increase the number of open file descriptors (say to 2048): ulimit -n 2048 Check the man page of ulimit for more details.

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  • IIS7 integrated mode MVC deploy 404 not found on some actions

    - by majkinetor
    Hello. Once deployed parts of my web-application stop working. Index-es on each controller do work, and one form posting via Ajax, other then that yields 404. I understand that nothing particular should be done in integrated mode. One interesting thing is that 1 AJAX action is working. I don't know how to proceed with troubleshooting. Some info: App is using default app pool set to integrated mode. WebApp is done in net framework 3.5. I use default routing model. Along web.config in root there is web.config in /View folder referencing HttpNotFoundHandler. OS is Windows Server 2008. Admins issued aspnet_regiis.exe -i IIS 7 Any help is appreciated. Thx. EDIT: Noticed one very strange thing. One ajax call works, other ajax call doesn't works as I login, but when I move to ther page and return to that one it starts working ?! Small video of the problem is available here

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  • Export data as Excel file from ASP.NET

    - by Yongwei Xing
    Hi all I have data like below AAAAAA BBBBBB CCCCCC DDDDDD EEEEEE Now there is button on the page,when I click the button, the browser would download a excel file with the data above, and stay current page. Is there any simple way to do it? The data is very simple. only one column, and not huge. Best Regards,

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  • Images logging as 404s with Zend Framework

    - by azz0r
    Hello, Due to Zend rewriting URL's to module/controller/action, its reporting that images are coming through as a 404. Here is the error: [_requestUri:protected] => /images/Movie/124/thumb/main.png [_baseUrl:protected] => [_basePath:protected] => [_pathInfo:protected] => /images/Movie/124/thumb/main.png [_params:protected] => Array ( [controller] => images [action] => Movie [124] => thumb [module] => default ) [_rawBody:protected] => [_aliases:protected] => Array ( ) [_dispatched:protected] => 1 [_module:protected] => default [_moduleKey:protected] => module [_controller:protected] => images [_controllerKey:protected] => controller [_action:protected] => Movie [_actionKey:protected] => action Here is my HTACCESS SetEnv APPLICATION_ENV development RewriteEngine On RewriteCond %{REQUEST_FILENAME} -s [OR] RewriteCond %{REQUEST_FILENAME} -l [OR] RewriteCond %{REQUEST_FILENAME} -d RewriteRule ^.*$ - [NC,L] RewriteRule ^.*$ index.php [NC,L] I guess what I need todo is put some sort of image or /design detection so its not routing to index.php Ideas?

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  • Is there a language with native pass-by-reference/pass-by-name semantics, which could be used in mod

    - by Bubba88
    Hi! This is a reopened question. I look for a language and supporting platform for it, where the language could have pass-by-reference or pass-by-name semantics by default. I know the history a little, that there were Algol, Fortran and there still is C++ which could make it possible; but, basically, what I look for is something more modern and where the mentioned value pass methodology is preferred and by default (implicitly assumed). I ask this question, because, to my mind, some of the advantages of pass-by-ref/name seem kind of obvious. For example when it is used in a standalone agent, where copyiong of values is not necessary (to some extent) and performance wouldn't be downgraded much in that case. So, I could employ it in e.g. rich client app or some game-style or standalone service-kind application. The main advantage to me is the clear separation between identity of a symbol, and its current value. I mean when there is no reduntant copying, you know that you're working with the exact symbol/path you have queried/received. And intristing boxing of values will not interfere with the actual logic of program. I know that there is C# ref keyword, but it's something not so intristic, though acceptable. Equally, I realize that pass-by-reference semantics could be simulated in virtually any language (Java as an instant example) and so on.. not sure about pass by name :) What would you recommend - create a something like DSL for such needs wherever it be appropriate; or use some languages that I already know? Maybe, there is something that I'm missing? Thank you!

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  • Prevent XSS but allow all characters?

    - by Dr Hydralisk
    How can I prevent XSS but allow any characters to be used? Like I can post HTML code on a forum like <html><body><h1>Test</h1></html>, but it would not be rendered in the browser as html? How can I do this so it does not convert the characters in PHP?

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  • Android WebView seems to ignore "viewport" information on web pages

    - by Evan
    I have a website that is using the viewport META tag to tell mobile browsers how to display content ( ). Viewing the page in the Android browser looks correct (and iPhone, etc). When I load the page into a WebView component in an android Application, the WebView ignores the "VIEWPORT" tag, and renders the page at "full" resolution, which is zoomed-in in this case.

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  • Leading underscore in directory name in IIS 5.

    - by Chuck Conway
    In IIS 5 one of the directories off the root has a leading underscore. All files under the directory are unreachable (404) from the browser. I have verified that the paths are correct. Other javascript files outside the directory comedown fine. Any thoughts? Example: http://fm74g4rndmu02.corp.com/_cache/softwarecommunity/api.js

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  • appstore launch request unable to complete

    - by Joey
    I am trying to launch an appstore page with either of the calls: [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://itunes.apple.com/us/app/myappname/id999999999?mt=8"]]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://www.itunes.com/apps/myappname"]]; Both of these urls work when I enter them in a browser. However, from both simulator and device, I get a "Your request could not be completed" error dialog right after it appears to try to launch the appstore. Is there something obvious that I'm doing wrong?

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  • Incorrect new Uri(base, relative) behaviour in .NET

    - by dr. evil
    When you create a new Uri like this: New Uri(New Uri("http://example.com/test.php"),"?x=y") it returns: http://example.com/?x=y It was supposed to return: http://example.com/test.php?x=y according to the every major browser out there (I'm not quite sure what RFC says though). Is this is a bug or is there any other function out there which behaves correctly, also what's the best way to fix it without reinventing the wheel?

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  • $this->Session->setFlash displays in wrong timings

    - by Nidhin Baby
    Hi, I am using $this-Session-setFlash to flash the error messages to the browser and its working fine. But, unfortunately, it is displaying the messages when it shouldn't display also. It is seems like, its getting the information's from cache and displaying. Please let me know, is there any way to solve it?

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  • How can I properly handle 404s in ASP.NET MVC?

    - by Brian
    I am just getting started on ASP.NET MVC so bear with me. I've searched around this site and various others and have seen a few implementations of this. EDIT: I forgot to mention I am using RC2 Using URL Routing: routes.MapRoute( "Error", "{*url}", new { controller = "Errors", action = "NotFound" } //404s ); The above seems to take care of requests like this (assuming default route tables setup by initial MVC project): "/blah/blah/blah/blah" Overriding HandleUnknownAction() in the controller itself: //404s - handle here (bad action requested protected override void HandleUnknownAction(string actionName) { ViewData["actionName"] = actionName; View("NotFound").ExecuteResult(this.ControllerContext); } However the previous strategies do not handle a request to a Bad/Unknown controller. For example, I do not have a "/IDoNotExist", if I request this I get the generic 404 page from the web server and not my 404 if I use routing + override. So finally, my question is: Is there any way to catch this type of request using a route or something else in the MVC framework itself? OR should I just default to using Web.Config customErrors as my 404 handler and forget all this? I assume if I go with customErrors I'll have to store the generic 404 page outside of /Views due to the Web.Config restrictions on direct access. Anyway any best practices or guidance is appreciated.

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  • Protect iPad settings

    - by Edmund
    I am developing a web application to be run in iPad safari. The iPads will be provided to the customers and the question is - I want to allow access only to the safari browser and not other applications that can be found in the iPad, especially the iPad settings. Is there anyway I can do that in iPad?

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  • Mysql return value as 0 in the fetch result.

    - by Karthik
    I have this two tables, -- -- Table structure for table `t1` -- CREATE TABLE `t1` ( `pid` varchar(20) collate latin1_general_ci NOT NULL, `pname` varchar(20) collate latin1_general_ci NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; -- -- Dumping data for table `t1` -- INSERT INTO `t1` VALUES ('p1', 'pro1'); INSERT INTO `t1` VALUES ('p2', 'pro2'); -- -------------------------------------------------------- -- -- Table structure for table `t2` -- CREATE TABLE `t2` ( `pid` varchar(20) collate latin1_general_ci NOT NULL, `year` int(6) NOT NULL, `price` int(3) NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci; -- -- Dumping data for table `t2` -- INSERT INTO `t2` VALUES ('p1', 2009, 50); INSERT INTO `t2` VALUES ('p1', 2010, 60); INSERT INTO `t2` VALUES ('p3', 2007, 200); INSERT INTO `t2` VALUES ('p4', 2008, 501); my query is, SELECT * FROM `t1` LEFT JOIN `t2` ON t1.pid = t2.pid Getting the result, pid pname pid year price p1 pro1 p1 2009 50 p1 pro1 p1 2010 60 p2 pro2 NULL NULL NULL My question is, i want to get the price value is 0 instead of NULL. How can i write the query to getting the price value is 0. Thanks in advance for help.

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  • List of web-based interpreters of various programming languages

    - by Bolo
    Let's say you're away from your computer and all you've got is a web browser. You'd still like to run a piece of code (e.g. to check an answer on SO). What are your options? Let's create a list of on-line interpreters of various programming languages. Here are some examples: Python: http://try-python.mired.org/ Haskell: http://tryhaskell.org/ Scala: http://www.simplyscala.com/ Many languages: http://ideone.com/ Many languages: http://codepad.org/

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