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  • Having trouble using jQuery to set meta tag values

    - by Zhami
    I'm trying to set meta tags using jQuery (please don't reply that this doesn't make sense since search engines blah-blah-blah... I am loading invoking 3rd party Javascript functions that examine these vales, such as Tweetmeme and Facebook). If I use: $('meta[name=some-name]').attr('content', 'some value'); it does work to set the value of an existing meta tag, but does not create a meta tag if such a named one does not exist. If you have insight or experience with this, please reply...

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  • It's possible make an OCR in Python to check words...

    - by Shady
    in opened applications? I want to automate firefox in some web page and I don't have a way to "know" if the page already load completely or if it still loading... I was thinking about making an OCR to check the status bar... it's difficult ? For example, when the word DONE appears at the status bar, the program continues to the next command...

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  • Ajax doesn't trigger a change-event on a webkit based browser

    - by user319464
    I have adapted a Jquery plugin to for-fill my needs to send GET requests to servers as a way of "pinging" them. I've also added some javascript code to add some fancy features like: depending on the changed value in a that the Jquery plugin changes, it changes the Icon accordingly. To make it all work essentially, I made so that when Ajax gets a "complete" event, it forces a "onChange" event to the span, triggering the javascript validation function to change the status icons. Here is the code of my slightly modified jQuery Plugin: /** * ping for jQuery * * Adapted by Carroarmato0 (to actually work instead of randomly "pinging" nowhere instead of faking * * @auth Jessica * @link http://www.skiyo.cn/demo/jquery.ping/ * */ (function($) { $.fn.ping = function(options) { var opts = $.extend({}, $.fn.ping.defaults, options); return this.each(function() { var ping, requestTime, responseTime ; var target = $(this); var server = target.html(); target.html('<img src="img/loading.gif" alt="loading" />'); function ping() { $.ajax({url: 'http://' + server, type: 'GET', dataType: 'html', timeout: 30000, beforeSend : function() { requestTime = new Date().getTime(); }, complete : function() { responseTime = new Date().getTime(); ping = Math.abs(requestTime - responseTime); if (ping > 2000) { target.text('niet bereikbaar'); } else { target.text(ping + opts.unit); } target.change(); } }); } ping(); opts.interval != 0 && setInterval(ping,opts.interval * 1000); }); }; $.fn.ping.defaults = { interval: 3, unit: 'ms' }; })(jQuery); target.change(); is the code that triggers the "onchange" event in the span: echo " <td class=\"center\"><span id=\"ping$pingNb\" onChange=\"checkServerIcon(this)\" >" .$server['IP'] . "</span></td>"; In Firefox this works, checkServerIcon(this) gets executed and passes the span object to the function. function checkServerIcon(object) { var delayText = object.innerHTML; var delay = delayText.substring(0, delayText.length - 2); if ( isInteger(delay) ) { object.parentNode.previousSibling.parentNode.getElementsByTagName('img')[0].src = 'img/servers/enable_server.png'; } else { if (delay == "bezig.") { object.parentNode.previousSibling.parentNode.getElementsByTagName('img')[0].src = 'img/servers/search_server.png'; } else { object.parentNode.previousSibling.parentNode.getElementsByTagName('img')[0].src = 'img/servers/desable_server.png'; } } } My guess would be that there's something different in WebKit browsers in the way object.parentNode.previousSibling.parentNode. .... works...

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  • .NET JIT Code Cache leaking?

    - by pitchfork
    We have a server component written in .Net 3.5. It runs as service on a Windows Server 2008 Standard Edition. It works great but after some time (days) we notice massive slowdowns and an increased working set. We expected some kind of memory leak and used WinDBG/SOS to analyze dumps of the process. Unfortunately the GC Heap doesn’t show any leak but we noticed that the JIT code heap has grown from 8MB after the start to more than 1GB after a few days. We don’t use any dynamic code generation techniques by our own. We use Linq2SQL which is known for dynamic code generation but we don’t know if it can cause such a problem. The main question is if there is any technique to analyze the dump and check where all this Host Code Heap blocks that are shown in the WinDBG dumps come from? [Update] In the mean time we did some more analysis and had Linq2SQL as probable suspect, especially since we do not use precompiled queries. The following example program creates exactly the same behaviour where more and more Host Code Heap blocks are created over time. using System; using System.Linq; using System.Threading; namespace LinqStressTest { class Program { static void Main(string[] args) { for (int i = 0; i < 100; ++ i) ThreadPool.QueueUserWorkItem(Worker); while(runs < 1000000) { Thread.Sleep(5000); } } static void Worker(object state) { for (int i = 0; i < 50; ++i) { using (var ctx = new DataClasses1DataContext()) { long id = rnd.Next(); var x = ctx.AccountNucleusInfos.Where(an => an.Account.SimPlayers.First().Id == id).SingleOrDefault(); } } var localruns = Interlocked.Add(ref runs, 1); System.Console.WriteLine("Action: " + localruns); ThreadPool.QueueUserWorkItem(Worker); } static Random rnd = new Random(); static long runs = 0; } } When we replace the Linq query with a precompiled one, the problem seems to disappear.

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  • How can I use Mongrel for my non-rails ruby webapp?

    - by aharon
    I've got a non-RoR but ruby webapp in the works. So far, I've just been using requests, hacks, and mod_ruby; but I'd really like to try out Mongrel--which seems to work really well for RoR sites. I looked at the examples given in GitHub, and none of them does dynamic changing of content w/o having to restart Mongrel like you can do in RoR under dev mode. How can I do this? (Just using load doesn't work.)

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  • C# datastructure

    - by Bi
    Hi Whats the best data structure for a 2D array of size unknown x 2. Which means one dimension is dynamic (list of grocery items) and the other is fixed (price and quantity). Thanks

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  • Why does this C# event handler not respond to this event in this Silverlight application?

    - by Edward Tanguay
    Can anyone tell me why the following code successfully executes this event: OnLoadingComplete(this, null); but never executes this event handler? void initialDataLoader_OnLoadingComplete(object obj, DataLoaderArgs args) CODE: using System; using System.Collections.Generic; using System.Linq; using System.Windows.Controls; using System.Diagnostics; namespace TestEvent22928 { public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); DataLoader initialDataLoader = new DataLoader("initial"); initialDataLoader.RegisterText("test1", "http://test:111/testdata/test1.txt"); initialDataLoader.RegisterText("test2", "http://test:111/testdata/test2.txt"); initialDataLoader.BeginLoading(); initialDataLoader.OnLoadingComplete += new DataLoader.LoadingComplete(initialDataLoader_OnLoadingComplete); } void initialDataLoader_OnLoadingComplete(object obj, DataLoaderArgs args) { Debug.WriteLine("loading complete"); //WHY DOES EXECUTION NEVER GET HERE? } } public class DataManager { public DataLoader CreateDataloader(string dataloaderIdCode) { DataLoader dataLoader = new DataLoader(dataloaderIdCode); return dataLoader; } } public class DataLoader { public string IdCode { get; set; } public List<DataItem> DataItems { get; set; } public delegate void LoadingComplete(object obj, DataLoaderArgs args); public event LoadingComplete OnLoadingComplete = delegate { }; private int dataItemCurrentlyLoadingIndex; public DataLoader(string idCode) { IdCode = idCode; DataItems = new List<DataItem>(); dataItemCurrentlyLoadingIndex = -1; } public void RegisterText(string idCode, string absoluteSourceUrl) { DataItem dataItem = new DataItem { IdCode = idCode, AbsoluteSourceUrl = absoluteSourceUrl, Kind = DataItemKind.Text }; DataItems.Add(dataItem); } public void BeginLoading() { LoadNext(); } private void LoadNext() { dataItemCurrentlyLoadingIndex++; if (dataItemCurrentlyLoadingIndex < DataItems.Count()) { DataItem dataItem = DataItems[dataItemCurrentlyLoadingIndex]; Debug.WriteLine("loading " + dataItem.IdCode + "..."); LoadNext(); } else { OnLoadingComplete(this, null); //EXECUTION GETS HERE } } } public class DataItem { public string IdCode { get; set; } public string AbsoluteSourceUrl { get; set; } public DataItemKind Kind { get; set; } public object DataObject { get; set; } } public enum DataItemKind { Text, Image } public class DataLoaderArgs : EventArgs { public string Message { get; set; } public DataItem DataItem { get; set; } public DataLoaderArgs(string message, DataItem dataItem) { Message = message; DataItem = dataItem; } } }

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  • Is it possible in AvalonDock to programatically change DockableContent state to floating?

    - by Marqus
    In my application I'm loading windows from 'plugins', so my app doesn't know them until runtime. I'm creating DockableContent for each plugin and sets it's Content to Control returned by plugin. Each plugin tells, if it's window should be initially docked or floating, user can change it later. So I have an instance of DockableContent and I want to change it to FloatingWindow programatically. Changing content.DockableStyle to DockableStyle.Floating isn't enough, what else I have to do?

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  • How are you using IronPython?

    - by Will Dean
    I'm keen to drink some modern dynamic language koolaid, so I've believed all the stuff on Michael Foord's blog and podcasts, I've bought his book (and read some of it), and I added an embedded IPy runtime to a large existing app a year or so ago (though that was for someone else and I didn't really use it myself). Now I need to do some fairly simple code generation stuff, where I'm going to call a few methods on a few .net objects (custom, C#-authored objects), create a few strings, write some files, etc. The experience of trying this leaves me feeling like the little boy who thinks he's the only one who can see that The Emperor has no clothes on. If you're using IronPython, I'd really appreciate knowing how you deal with the following aspects of it: Code editing - do you use the .NET framework without Intellisense? Refactoring - I know a load of 'refactoring' is about working around language-related busywork, so if Python is sufficiently lightweight then we won't need that, But things like renames seem to me to be essential to iteratively developing quality code regardless of language. Crippling startup time - One of the things which is supposed to be good about interpreted languages is the lack of compile time leading to fast interactive development. Unfortunately I can compile a C# application and launch it quicker than IPy can start up. Interactive hacking - the IPy console/repl is supposed to be good for this, but I haven't found a good way to take the code you've interactively arrived at and persist it into a file - cut and paste from the console is fairly miserable. And the console seems to hold references to .NET assemblies you've imported, so you have to quit it and restart it if you're working on the C# stuff as well. Hacking on C# in something like LinqPad seems a much faster and easier way to try things out (and has proper Intellisense). Do you use the console? Debugging - what's the story here? I know someone on the IPy team is working on a command-line hobby-project, but let's just say I'm not immediately attracted to a command line debugger. I don't really need a debugger from little Python scripts, but I would if I were to use IPy for scripting unit tests, for example. Unit testing - I can see that dynamic languages could be great for this, but is there any IDE test-runner integration (like for Resharper, etc). The Foord book has a chapter about this, which I'll admit I have not yet read properly, but it does seem to involve driving a console-mode test-runner from the command prompt, which feels to be an enormous step back from using an integrated test runner like TestDriven.net or Resharper. I really want to believe in this stuff, so I am still working on the assumption that I've missed something. I would really like to know how other people are dealing with IPy, particularly if they're doing it in a way which doesn't feel like we've just lost 15 years'-worth of tool development.

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  • iPhone: Push Navigation Controller (w/ TableViewController) onto stack. Is this possible?

    - by Nic Hubbard
    I have a view which contains a UIButton. When this is clicked, it calls a method that loads another NIB. Now, normally, that nib would load a view onto the stack, and everything would be fine. But, I am trying to load a Navigation Controller (so that I can have table views that are multiple levels deep), and all I get it errors. What is the proper method for loading a Navigation Controller and putting it on the top of the stack?

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  • XNA - 2D Tile Lighting

    - by Cyral
    Im adding lighting to my 2D Tile based game. I found the link http://blog.josack.com/2011/07/xna-2d-dynamic-lighting.html useful, but the way its done it dosent support collision. What Id like is some help or links as I want one that can have -always lit up light points -collision (If the light ray hits a block, then dim the next block by whatever amount until its dark) Im a noob at this stuff, but ive been searching around for quite a while but no luck (I did find Catalin's tutorial, but it seemed abit advanced for me)

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  • apache mod_proxy_html on Ubuntu ProxyHTMLEnable not working

    - by intargc
    I'm trying to use mod_proxy_html on Ubuntu which I installed from apt-get. The module is loading properly and all ProxyHTML* directives work except for the one that matters the most. When I do "ProxyHTMLEnable on" in my apache2.conf or vhost conf files, apache complains that it's an invalid directive and I must have misspelled it. Is anyone else having this issue on Ubuntu and what can be done to fix it?

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  • Porblem with remove trailing slash and non-www to www - using .htaccess

    - by HoanNguyen
    I'm facing an issue with .htacess when combining 2 mod_rewrite at the same time: remove trailing slash redirect non-www to www Here is my .htaccess file Options +FollowSymLinks RewriteEngine On RewriteBase / # Redirect non-www to www RewriteCond %{HTTP_HOST} !^www\.domain\.com$ [NC] RewriteRule ^(.+)/$ http://www.domain.com/$1 [R=301,L] # Remove trailing slash RewriteCond %{HTTP_HOST} ^domain.com RewriteRule (.*) http://www.domain.com/$1 [R=301,L] They worked perfectly when I just used one of them, but when i put them together, the page just keep loading like forever. Please help me to find a way that can use both of them in the same .htaccess :( Many thanks :)

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  • Limiting selected rows count with a stored procedure parameter in MySQL

    - by ssobczak
    I have a procedure SelectProc wich contains SELECT statement. I want to add a procedure param LimitRowsCount and use it as following: CREATE PROCEDURE SelectProc (IN LimitRowsCount INTEGER UNSIGNED) BEGIN SELECT (...) LIMIT LimitRowsCount; END but this approach doesn't work. The SELECT itself contains nested subqueries so I can't create view from it. Is there a way more propper then dynamic SQL (prepared statements) ?

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  • Fancybox height help?

    - by Gabri
    I am using fancybox for loading a Huge form "1300px" height ( i know it is not something good but the client wants it like this) the problem that it doesn`t cover the whole height i tried autoDimensions $.fancybox.resize with no luck although other parts that uses fancybox is working without a problem so any tips will be great. also i want to know how to load data (a div) from another HTML inside fancybox?

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  • how to displaying pivot in matrix reporting service?

    - by Chandradyani
    Dear All, I have problem relating to pivot query and matrix reporting. I don't know how to display it on matrix reporting service so it will dynamic column. Can any body help me to show how to configure the matrix table? or could you give the link where can I find the answer of my problem? I'm newbie in reporting service.

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  • UIWebView Error

    - by Biranchi
    Hi all, I am getting an error while loading a url in uiwebview "malloc: * error for object 0x2841000: pointer being freed was not allocated * set a breakpoint in malloc_error_break to debug" But when i change the url to google.com ,it works fine without any error. what is this error due to ?

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  • Asp.net mvc, entity framework, Poco - Architecture

    - by user1576228
    I have a "small" enterprise application, aspnet mvc 3 + entity framework with POCO entity and repository pattern. I structured the solution in 4 projects: POCO entities Domain model Services web application When the application performs a query on the database, use one of the services provided, the service uses the repository and the small classes, as a result I have some dynamic proxy objects that I would like to convert in my domain entities, before using them in mvc views, but I do not know how. Dovrebber be set as the translator? This approach is reasonable?

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  • How to use NSURLDownload

    - by marshluca
    - (IBAction)startDownloadingURL:(id)sender { // create the request NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.apple.com/index.html"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; // create the connection with the request // and start loading the data NSURLDownload *theDownload=[[NSURLDownload alloc] initWithRequest:theRequest delegate:self]; if (!theDownload) { // inform the user that the download could not be made } } when i run the simulator , i got an error: NSURLDownload undeclared ,first use in this fuction. where can i import the library of NSURLDownload.

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  • How to call Ajax to run a PHP file while maintaining PHP & Javascript variables.

    - by Umar
    Hi Stackoverflowers. I'm using the Facebook php-sdk to get the users name and friends, right now the loading friends part takes about +3 seconds so I wanted to do it via Ajax, e.g. so the document can load and jQuery then calls an external PHP script which loads the friends (their names and their profile pictures). So to do this I did: $(document).ready(function() { var loadUrl = "http://localhost/fb/getFriends.php" ; $("#friends") .html("Hold on, your friends are loading!") .load(loadUrl); }); But I get a PHP error: Fatal error: Call to a member function api() on a non-object If I do this in the same PHP file (so I don't use Ajax at all to call it) it works fine. Now I think I understand the reason this is happening, but I don't know how to fix it. In my main index.php file I have a bunch of init and session code e.g. FB.init({ appId : '<?php echo $facebook->getAppId(); ?>', session : <?php echo json_encode($session); ?>, // don't refetch the session when PHP already has it status : true, // check login status cookie : true, // enable cookies to allow the server to access the session xfbml : true // parse XFBML }); So I'm just wondering what is the best way to treat my new separate PHP file getFriends.php in a way where it has access to all PHP/JavaScript session data/variables? If you haven't used the Facebook php-sdk I'll quickly explain what I mean: Lets say I have index.php and getUsername.php, from index.php I want to retrieve the getUsername.php file via Ajax using .load. Now the problem is getUsername.php needs to access PHP session data/Javascript Init functions which were created in index.php, so I'm thinking of ways to solve this (I'm new to PHP so sorry if this sounds silly) but I'm thinking maybe I could do a POST in jQuery Ajax and post the session data? Or maybe I could create a PHP class, so something like: class getUsername extends index{} /*Yes I'm a newbie*/ If you have a look at the php-sdk example.php link posted at the top maybe you'd better understand what variables exactly need to be accessed from a new file. Also on a different note, I'm using PHP to work out page rendering times and it seems that fetching the users name alone : // Session based API call. if ($session) { try { $uid = $facebook->getUser(); $me = $facebook->api('/me'); } catch (FacebookApiException $e) { error_log($e); } } Can take a good 4 seconds, is this normal? Once I get the users details is it good to cache it or something? -Speed isn't as important right now, for now I'm just trying to figure out this Ajax-separating php files thing. Woah this is a long post. Thanks very much for your time.

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