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• Air XmlHttpRequest time out if remote server is offline?

  - by Seth

  I'm writing an AIR application that communicates with a server via XmlHttpRequest. The problem that I'm having is that if the server is unreachable, my asynchronous XmlHttpRequest never seems to fail. My onreadystatechange handler detects the OPENED state, but nothing else. Is there a way to make the XmlHttpRequest time out? Do I have to do something silly like using setTimeout() to wait a while then abort() if the connection isn't established? Edit: Found this, but in my testing, wrapping my xmlhttprequest.send() in a try/catch block or setting a value on xmlhttprequest.timeout (or TimeOut or timeOut) doesn't have any affect.

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• About Android IDE

  - by licorna

  Right now I'm using Eclipse for Android development, but my computer is kind of old and I like responsive development environments. I've tried using VIM, Emacs and TextMate but I'm missing every feature in the Eclipse Android plugin: Auto generate R class Check for errors & warnings on code Auto completion Deploy to device or emulator Integrate with DDMS The list goes to infinity ... I know Eclipse is the best for what I want to do, but if I want to use any editor, what do you recommend to achieve a not so frustrating Android development experience?

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• Add HTMl to CCK within Drupal

  - by Romelus96

  Hello im a newbie at using Drupal, and have come across a block in my progress. I have been using CCK to add new content types to my forms. I was wondering if there was any way to add to the form that is generated so that i may contain the elements and also insert visual html code like head rules etc. I have dabbled with the hook_form_alter() and it does not seem to help me in my efforts. Ive been through adjusting tpl.php files and such and have made no progress. Please if there is any one there in the inter-webs who is knowledgeable on this matter your advice would be greatly appreciated. Here is just an example of what I would want to do within the form: 1. Contain field elements within DIV's 2. Add HTML Content into the form

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• Enclosing service execution in try-catch: bad practice?

  - by Sorin Comanescu

  Hi, Below is the usual Program.cs content for a windows service program: static class Program { /// <summary> /// The main entry point for the application. /// </summary> static void Main() { ServiceBase[] ServicesToRun; ServicesToRun = new ServiceBase[] { new MyService() }; ServiceBase.Run(ServicesToRun); } } Is it a bad practice to enclose the ServiceBase.Run(...) in a try-catch block? Thanks.

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• Weird bug in Java try-catch-finally

  - by kcr

  I'm using JODConverter to convert .xls and .ppt to .pdf format. For this i have code something like try{ //do something System.out.println("connecting to open office"); OpenOfficeConnection connection = new SocketOpenOfficeConnection(8100); System.out.println("connection object created"); connection.connect(); System.out.println("connection to open office successful"); //do something if(!successful) throw new FileNotFoundException(); }catch(Exception e){ System.out.println("hello here"); System.out.println("Caught Exception while converting to PDF "); LOGGER.error("Error in converting media" + e.getMessage()); throw new MediaConversionFailedException(); }finally{ decode_pdf.closePdfFile(); System.out.println("coming in finally"); //do something here } My Output : connecting to open office connection object created coming in finally P.S. return type of method is void How is it possible ? Even if there is some problem in connection.connect(), it s'd come in catch block. confused

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• Play Sound while UIImageView animating crashes the app?

  - by Rahul Vyas

  Hello all, I am having a strange problem in my app. I am creating a app in which i have 9 buttons on the view i want to play sound and animation same time. I am using UIImageview for this but i am having starnge behaviour sometimes sound play early and then animation runs.So how do i play them at same time? I am also having crash on device on a specific animation in which i have 60 jpg files. So what's the best way to do this?

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• Has anyone run VxWorks on a desktop PC as a target

  - by Steve Roe

  Can I use a desktop PC to run VxWorks as the operating system? In other words, can a standard PC be used as a target processor? I'm not talking about hosting Workbench and a VxSim on the same machine. Rather, I'm considering running just VxWorks (and my application) on a PC. It seems feasible as long as we can configure a board support package, and write or obtain device drivers for the I/O cards on the PCI bus. What I wonder is, has anyone actually done this? I'm interested in saving a bit of money on hardware over a single board computer and cPCI backplane by using a spare desktop sitting around unused. The application is for a test set to be used in a lab. So, I don't need the portability, etc. of a typical embedded processor.

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• How to get "paster request" to use config host value instead of localhost?

  - by mmartinez

  I'm trying to access my pylons application via cron job to send notifications to my users. The way I'm doing this is by running the application using something like: paster request myconfig.ini /maintenance/do In the actual controller I check for the "paste.command_request" to block public access. Everything works but the only problem is that within the notifications that I send to my users there is a link to their profile and the host is "localhost" which should instead be the domain name of the application. When the notifications are sent from within the served application (say, a user modifies their settings on the site) the notifications have the correct url. I am using mako to render my email tamplates and within the template I am using the "pylons.url" method with "qualified" set to "True". Am I missing something here? Thanks in advance.

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• Are there any kata for practice VIM?

  - by Grzegorz Gierlik

  I've used VIM for many years as my primary text editor. And I am still learning how to use VIM for various editing tasks. The problem is that even if I learn something and use it once a week I forgot soon how I did it -- classic case is search and replace in many buffers using bufdo :(. I was wondering if there is any kata to daily VIM practice including many VIM commands: open existing files, create new files, edit files and move around: move cursor (beginning & end of line/function/block/screen, top & bottom of screen, move screen line up/down, etc.), mark, copy & paste, insert & remove characters/words/lines, move between buffers, move between windows, arrange windows, search & replace, repeat last command, formatting (=), probably some more (bookmarks, macros). save files, create/update/save an open projects (mksession and source). Do you know any kata for VIM of tutorial which could help to practice all above (and more) VIM commands?

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• Strange behaviour with Microsoft.WindowsCE.Forms

  - by Mohammadreza

  I have a Windows Mobile application in which I want to check the device orientation. Therefore I wrote the following property in one of my forms: internal static Microsoft.WindowsCE.Forms.ScreenOrientation DeviceOriginalOrientation { get; private set; } The strange thing is that after that whenever I open a UserControl, the designer shows this warning even if that UserControl doesn't use the property: Could not load file or assembly 'Microsoft.WindowsCE.Forms, Version=3.5.0.0, Culture=neutral, PublicKeyToken=969db8053d3322ac' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) Commenting the above property will dismiss the warning and shows the user control again. The application is built successfully and runs without any problems in both cases. Does anybody know why this happens and how can I fix it?

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• Rails 3 - Nested layouts - LocalJumpError

  - by Art Shayderov

  Hi Nested layouts do not work in Rails 3. After I hit this I tried Rails Guides Example on a blank project (both ruby 1.9.1 and 1.8.7). LocalJumpError no block given on line <%= yield :stylesheets %. If you remove this line you will get the same error on the next yield statement. Could someone fix(patch) this? It's probably just a matter of calling block_given? in the right place. That would be great. Thanks Added on 4/3: Rails 3 beta 2 released. Problem fixed.

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• inherit properties and then change some on particular site (css)

  - by Radek

  I have three menus on this test web site. I am learning css and trying all the menus inherit all properties from menu class. The second one looks different and is not clickable. I am happy with the 3rd one, just want to make it horizontal and change its position bit. Could somebody tell me why the second menu is not click-able? how I can make the third menu vertical? I thought that display: block; for li of the 3rd menu would do the trick but I do not know the css path for that li.

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• Unable to catch exception from Activator.CreateInstance.

  - by Patrik Hägne

  OK, I admit it this code will just look weird to you, and that's because it is weird. This is just code to reproduce the behavior, not code I want to use. class Program { static void Main(string[] args) { try { Activator.CreateInstance(typeof(Func<int>), new object[] { new object(), IntPtr.Zero }); } catch { Console.WriteLine("This won't print!"); } Console.Write("Actually this will not print either!"); Console.ReadLine(); } } No matter what exception type I try to catch (the actual exception thrown is an ArgumentException as far as I can tell) the code inside the catch block will not execute. Actually execution will just stop at the Activator.CreateInstance-line.

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• allowing index access only with .htaccess

  - by YsoL8

  Hello I have this in my .htaccess file, in the site root: Options -Indexes <directory ../.*> Deny from all </directory> <Files .htaccess> order allow,deny deny from all </Files> <Files index.php> Order allow,deny allow from all </Files> What I'm trying to achieve is to block folder and file access to anything that isn't called index.php, regardless of which directory is accessed. I have the folder part working perfectly and the deny from all rule is working as well - but my attempt to allow access to index.php is failing. Basically could someone tell me how to get it working?

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• how to maintain a Home Button Presistent state of an app in Android?

  - by androidbase Praveen

  hi all, i am working on my App. in between i pressed the Home button on the device. my app will go to the background tasks. After that i long press the home button it will show my app as a persistent state. i.e where and what i had done in my app. But i click my app in the directory window it restarts my app. i want to do if my app is in the background tasks it will wake up else it will start. how to achieve that? Any Idea?

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• Can I ask Postgresql to ignore errors within a transaction

  - by fmark

  I use Postgresql with the PostGIS extensions for ad-hoc spatial analysis. I generally construct and issue SQL queries by hand from within psql. I always wrap an analysis session within a transaction, so if I issue a destructive query I can roll it back. However, when I issue a query that contains an error, it cancels the transaction. Any further queries elicit the following warning: ERROR: current transaction is aborted, commands ignored until end of transaction block Is there a way I can turn this behaviour off? It is tiresome to rollback the transaction and rerun previous queries every time I make a typo.

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• HOw to use UIIMagePickerController?

  - by aman-gupta

  Hey, IN my application I m using this code on button click for getting image from PhotoLibrary:- -(IBAction) getPhoto:(id) sender { UIImagePickerController *picker = [[UIImagePickerController alloc]init]; picker.delegate = self; picker.sourceType =UIImagePickerControllerSourceTypePhotoLibrary; [self presentModalViewController:picker animated:YES]; [picker release]; //picker = nil; } -(void)imagePickerController:(UIImagePickerController *) picker didFinishPickingMediaWithInfo:(NSDictionary *)info { imageView.image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; [picker dismissModalViewControllerAnimated:YES]; } But problem is that when i run my application in mobile it will get terminated on button click.Where I m wrong it works properly on iphone simulator but termninating on iphone Device Please reply me its urgent Thanks in Advance

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• LINQ method chaining and granular error handling

  - by Clafou

  I have a method which can be written pretty neatly through method chaining: return viewer.ServerReport.GetParameters() .Single(p => p.Name == Convention.Ssrs.RegionParamName) .ValidValues .Select(v => v.Value); However I'd like to be able to do some checks at each point as I wish to provide helpful diagnostics information if any of the chained methods returns unexpected results. To achieve this, I need to break up all my chaining and follow each call with an if block. It makes the code a lot less readable. Ideally I'd like to be able to weave in some chained method calls which would allow me to handle unexpected outcomes at each point (e.g. throw a meaningful exception such as new ConventionException("The report contains no parameter") if the first method returns an empty collection). Can anyone suggest a simple way to achieve such a thing?

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• What are the best options for a root filesystem hosted on SSD under Linux

  - by stsquad

  I'm working on an embedded system which is going to be booting and hosting it's rootfs on an SSD disk. We are currently looking at using Intel X-18M SSDs. The file system structure will have a fairly static /usr section (modulo software upgrades) and an active /var and /var/log for maintaining state and logging. Given the wear-levelling done by the underlying flash does having separate partitions help or hinder? As modern SSDs appear as straight block devices and hide their mapping magic behind their firmware is there any point trying to optimise the choice of file-system that sits on-top of the SSD? Finally does enable SMART monitoring make any sense in this context or are their SSD specific ways of determining the underlying health of the storage hardware?

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• Rails 3: config/initializers errors for gem configuration

  - by neezer

  I'm trying to setup this plugin (Crumble), and the docs say I need to add a configuration file for the plugin in config/initializers/ like this (breadcrumb.rb): Breadcrumb.configure do ... end I add in my directives in that block, and reloaded the page, and I'm immediately greeted with a Passenger error: uninitialized constant Breadcrumb What am I missing here? gem list shows Crumble as installed, and if I launch IRB I can require 'crumble' successfully. I remember doing this just fine in Rails 2.3.5. Here's my setup: rails 3.0.0.beta3 ruby 1.9.1p378 (via RVM) passenger 2.2.11 (with Apache2) crumble 0.1.2 I've been trying to read the Rails 3 release notes to see if they've changed anything that would affect this, but so far I haven't found anything to suggest that the above shouldn't work. I'd appreciate any guidance you could spare me!

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• Call to C++ COM interface from C# being blocked

  - by dauphic

  I have a C++ DLL that exposes a COM interface. A C# application uses the COM interface. I've recently run into a problem where some calls to the COM interface are taking 500-5000 ms to return, though they should return almost instantly (no longer than 10 ms). Profiling the application shows that all of the delay is being caused by the 'thread being blocked;' no other information is available. There are no locks, etc. in my code, so the blocking has to be occurring internally in the COM/interop code. Only one thread interfaces with the COM DLL. Any ideas what could be causing this, and how I would fix it? EDIT: Further investigation shows that the block is occuring when the C++ returns to the C#.

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• Possible to link an image in a playlist to a URL, with Flowplayer?

  - by Yegor

  I have a simple Flowplayer playlist. First one plays a short clip, which then cuts off, and an image is displayed. Is there a way to make the image clickable? here is what I have: <a style="display:block;width:640px;height:360px" id="player"> </a> <script> flowplayer("player", "../flowplayer-3.1.5.swf", { playlist: [ {url: 'http://e1h13.simplecdn.net/flowplayer/flowplayer.flv', duration: 10}, {url: 'http://www.domain.com/image.jpg', duration: 100000}, ], plugins: { controls: null } }); </script> If there is another way of doing this, Im all ears. I need a video to play for 10 seconds (or entirely, since the file is gonna be 10 seconds long), and then display some text + a URL.

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• Can't set anchor tag to [disabled] in IE

  - by Alex

  Hi. I have the following css code. button.png is image where 3 button states are pasted vetrically, so i just move image in css. a.button { background-image: url(button.png); background-position: 0px 0px; width: 100px; height: 30px; display: block; background-repeat: no-repeat; text-indent: -9999px; } a:hover.button { background-position: -100px 0px; } a.button[disabled] { background-position: -200px 0px; cursor:default; } I put this in html <a href="#" class="button" disabled="disabled"></a> In Chrome all is ok. IE dont show disabled image.

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• Best CMS for doing private site with Charting

  - by anderswid

  I'm really new to website development and for a project I need: No public pages. All private. Login+Password (Users, Admins) Being able to upload XML-files from Android device Parse this XML into something I can plot. Easy charting. Admin users being able to read all sub-users uploads. Doesn't have to look good. No blog-post. Strictly XML-Charts. I thought about using Wordpress, but I don't know if it's the best idea. I can code, but I don't have to much PHP + MySQL experience. Maybe there's something simpler? Thanks for taking the time.

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• What is the proper way to resolve this Eclipse warning?

  - by Morinar

  I'm trying to clean up some warnings in some old Java code (in Eclipse), and I'm unsure what the proper thing to do is in this case. The block looks more or less like this: java.util.List clipboardFileList = null; if( content.isDataFlavorSupported( DataFlavor.javaFileListFlavor ) ) { try { clipboardFileList = (java.util.List)content.getTransferData( DataFlavor.javaFileListFlavor); } /* Do other crap, etc. */ } The List generates a warning as it isn't parameterized, however, if I parameterize it with <File>, which I'm pretty sure is what it requires, it complains that it can't convert from Object to List<File>. I could merely suppress the unchecked warning for the function, but would prefer to avoid that if there is a "good" solution. Thoughts?

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