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  • Retain information in cocoa?

    - by happyCoding25
    Hello, I'm still new to cocoa and don't know much about memory management. I read up on apples documentation but I'm still confused. My question is if I set the value of a variable in a - (void)dowhatever when the void ends, will the contents of the variable be erased? If so is there a method (without writing to a file) that I can use to retain the variable contents? Thanks for any help

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  • Is there a way to put relationships/contraints into CSS?

    - by hekevintran
    In every design tool or art principle I've heard of, relationships are a central theme. By relationships I mean the thing you can do in Adobe Illustrator to specify that the height of one shape is equal to half the height of another. You cannot express this information in CSS. CSS hard-codes all values. Using a language like LESS that allows variables and arithmetic you can get closer to relationships but it's still a CSS variant. This inability in my mind is the biggest problem with CSS. CSS is supposed to be a language that describes the visual component of a Web page but it ignores relationships and contraints, ideas that are at the core of art. How possible is it to imagine a new Web design language that can express relationships and contraints that can be implemented in JavaScript using the current CSS properties?

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  • Starting Tornado Web

    - by picklepete
    Hi, I'm quite new to using Tornado Web as a web server, and am having a little difficulty keeping it running. I normally use Django and Nginx, and am used to start/stop/restarting the server. However with Tornado I'm having trouble telling it to "run" without directly executing my main python file for the site, ie "python ~/path/to/server.py". I'm sure I'm getting this completely wrong - is there a way of 'bootstrapping' my script so that when Nginx starts, Tornado starts? Any help would be appreciated!

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  • Auto refresh web page

    - by Epitaph
    I have a web page which allows the user to carry out various operations that in turn modify the database. Also, this web application needs to keep track of various fields in database that keep changing with time. Is refreshing the page every few seconds the best possible way to implement this? For example, if there is a long list on the page requiring scrolling, it is hard to view the list since the page keeps resetting due to the refresh. I know, there are ways to retain the position of the scroll. But, could I use something more efficient?

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  • How to packing Resources in Maven Project?

    - by Rehman
    I am looking for suggestion in putting image file maven web project. One of classes under src/main/java need to use an image file. My problem is, if i put image file under src/main/webapp/images then application server cannot find that path on runtime(where myeclipse can ) because war archive do not have specified path "src/main/webapp/images". My question is where should i put the image file that my project can find it without prompting any error or exception. I am using Java Web Application with Mavenized falvour MyEclipse 10 Application Server: JBoss 6 Currently i do have following dir structure Project Directory Structure -src/main/java -- classes -src/main/resources -- applicationContext.xml -src/test/java -- test classes -src/test/resources (nothing) -src -- main --- webapp --WEB-INF --Images --Css --Meta-INF -target -pom.xml And pom.xml's build snippet is as follows <build> <sourceDirectory>${basedir}/src/main/java</sourceDirectory> <outputDirectory>${basedir}/target/${project.artifactId}/classes</outputDirectory> <resources> <resource> <directory>${basedir}/src/main/resources</directory> <excludes> <exclude>**/*.java</exclude> </excludes> </resource> </resources> <testResources> <testResource> <directory>${basedir}/src/test/resources</directory> </testResource> </testResources> <finalName>${project.artifactId}</finalName> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>${jdk.version}</source> <target>${jdk.version}</target> <optimize>true</optimize> <useProjectReferences>true</useProjectReferences> </configuration> </plugin> <plugin> <artifactId>maven-war-plugin</artifactId> <version>2.1.1</version> <configuration> <warSourceDirectory>${basedir}/src/main/webapp</warSourceDirectory> <webResources> <resource> <directory>${basedir}/src/main/resources</directory> </resource> </webResources> </configuration> </plugin> </plugins> </build> Thanks in advance

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  • how to create simulator for web application for load test and stress test

    - by girish
    i m developing a web application but...now i need to create simulator for the same...that will be able to re-run the process that has been done on website... let's say i m developing a auction site where user's bid on product.... during these process the number of user's bid on the same product and at the end one user buy the product... now what i want is.. i want to record this process or any thing so that i can run the process for the same again so that i can test the load and the stress on web application and the database server.. Thank you.

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  • Building a GPS Tracking Web System

    - by zakaria
    Hi everybody, I'd like to develop a tracking system using an API of course (like the famous Orange API). the idea is simple: I send a SMS (from my Web interface) to the person i want to track The person's mobile terminal (GPS like this) send me back automatically the coordinates by SMS. The sent information are displayed on the user's web interface. The questions are simple: How the terminal can send automatically the response? How to indicate in the message that the information is for "user4655"? How to make connection between the information and the database? Thanks, Regards.

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  • Using Office 2010 web apps with ASP.NET

    - by Martin de Ruiter
    Would it be possible to use the Office 2010 web apps with an ASP.NET application? For example: - For each user of my ASP.NET application there is a folder with Word documents on my server - The ASP.NET application displays the available documents in a grid to the user - When clicking on one of the documents in the grid, the Word document is loaded in an IFrame which contains the Office 2010 web apps Word interface and editing of the document can take place - After editing, the document can be saved to the server, and the ASP.NET grid displays an updated status Would such a scenario be possible? And what do you need, e.g. Sharepoint, Office 2010 licenses?

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  • Switching from web to desktop development

    - by Dziamid
    Being a web developer (php, symfony, doctrine) for 2 years now, I was recently asked by a friend to come up with a desktop solution. So I developed a project, installed a LAMP on his machine and he is mostly happy using it now. But I'm not. It just doesn't seem right to wait for a server response from a localhost. Obviously php isn't suited for desktop development. So, my question is: what language \ framework would you advice a php programmer if he was going to develop a desktop application (something that you can install, that has it's own gui, but utilizes the similar concepts of web apps: css, javascript, orm). I would like to bring up Python as a possible answer to my question. Does anyone have an experience of developing a desktop app with Python, utilizing an ORM and(or) HTML-based GUI?

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  • Managing Java dependencies in a Grails application?

    - by Stefan Kendall
    I'm trying to adopt my development from Spring/Maven2/Tomcat -> Grails, and I'm wondering if there's an easy way to manage dependencies in grails separate from maven. Maven does a lot of the magic that grails is doing automatically (unit testing/building/etc.), so I wonder if there's a need for maven at all in grails projects. So, then, how do Grails users generally manage java dependencies? I've become accustomed to central repository dependency management, and I can't turn back at this point.

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  • Updating a deallocated UIWebView from a background thread

    - by Dan Ray
    As you can see from the title, I've programmed myself into a corner and I've got several things working against me... In a UIViewController subclass that manages a large and complex view. One part of it is a UIWebView that contains output from a web request that I had to build and execute, and manually assemble HTML from. Since it takes a second or two to run, I dropped it into the background by calling self performSelectorInBackground:. Then from that method I call there, I use self performSelectorOnMainThread: to get back to the surface of the thread stack to update the UIWebView with what I just got. Like this (which I've cut down to show only the relevant issues): -(void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { //then get mapquest directions NSLog(@"Got called to handle new location!"); [manager stopUpdatingLocation]; [self performSelectorInBackground:@selector(getDirectionsFromHere:) withObject:newLocation]; } - (void)getDirectionsFromHere:(CLLocation *)newLocation { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; CLLocationCoordinate2D here = newLocation.coordinate; // assemble a call to the MapQuest directions API in NSString *dirURL // ...cut for brevity NSLog(@"Query is %@", dirURL); NSString *response = [NSString stringWithContentsOfURL:[NSURL URLWithString:dirURL] encoding:NSUTF8StringEncoding error:NULL]; NSMutableString *directionsOutput = [[NSMutableString alloc] init]; // assemble response into an HTML table in NSString *directionsOutput // ...cut for brevity [self performSelectorOnMainThread:@selector(updateDirectionsWithHtml:) withObject:directionsOutput waitUntilDone:NO]; [directionsOutput release]; [pool drain]; [pool release]; } - (void)updateDirectionsWithHtml:(NSString *)directionsOutput { [self.directionsWebView loadHTMLString:directionsOutput baseURL:nil]; } This all works totally great, UNLESS I've backed out of this view controller before CLLocationManager hits its delegate method. If this happens after I've already left this view, I get: 2010-06-07 16:38:08.508 EverWondr[180:760b] bool _WebTryThreadLock(bool), 0x1b6830: Tried to obtain the web lock from a thread other than the main thread or the web thread. This may be a result of calling to UIKit from a secondary thread. Crashing now... Despite what this says, I can repeatably cause this crash when I back out too early. I'm not at all convinced that attempting a UI update from a background thread is really the issue; I think it's that my UIWebView is deallocated. I suspect that the fact I was just IN a background thread makes the runtime suspect something's up about that, but I feel fairly sure that's not it. So how do I tell CLLocationManager not to worry about it, when I'm backing out of that view? I tried [self.locationManager stopUpdatingLocation] inside my viewWillDisappear method, but that didn't do it. (Incidentally, MapQuest's apis are FANTASTIC. Way WAY better than anything Google provides. I can't recommend them highly enough.)

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  • Create Table by Copying Structure of Existing Table

    - by tyguy840
    I am trying to create a new table by copying an existing table in SQL Server 2008 using Management Studio. The existing table contains no data. I am using the following code but am receiving an error for Incorrect Syntax near AS. I am not sure what is wrong here. I am a SQL newb and any help would be appreciated. Thanks. CREATE TABLE Drop_Centers_Detail AS (Select * From Centers_Detail)

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  • Real time web services

    - by daliz
    Hi everybody, I have a little (maybe the answer could require a book) question about web services and server side programming. But first, a little preamble. Recently we have seen new kind of applications & games using some kind of real-time interaction with a database, or more generally, with other users. I'm talking about shared drawing canvas, games like this , or simple chats, or the Android app "a World of Photo", where in real time you see who is online, to share your photos, etc. Now my question: Are all these apps based on classic TCP client/server architectures or is there a way to make them in a simpler way, like a web platform like LAMP? What I'm asking, in other words is: Can PHP+MySQL (or JSP, or RoR, or any other server language) provide a way to make online users communicate in real time and share data? Is there a way to do that without the ugly and heavy mechanism of temporary tables? Thank you! I hope I've been clear.

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  • Session timeout issue

    - by Kumar
    I have a role based ASP.NET C# web application in which I am putting the menu object inside a session and I have a session timeout configured in the web.config as below: <forms defaultUrl="Home.aspx" loginUrl="Login.aspx" name=".ASPXFORMSAUTH" timeout="10"></forms> I first logged into the system as an employee and waited until the session expires and then when I click a link in the menu I am being rightly redirected to the login page with the ReturnUrl parameter. Now when I try to login to the system as an administrator I am still seeing the employee menu and not the admin menu. The method which loads the menu 1st checks to see if the menu session object is not null if so loads the menu from the session if not then it builds the menu and put it into session. So when the system timesout the menu session object is not being cleared. How can I fix this?

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  • ISBN -> bookdata Lookup to fill in a database

    - by oxinabox.ucc.asn.au
    Ok, I wanting to database a small library. I've only had limmited experience with databeses, and vnone with queerying a websever. I'm going to want to retrieve information like title, Publisher, maybe author, desciption the simplest way i can think of dooing this is looking them up via the isbn. I'm wondering how I should go about doing this. I've coma across isbndb.com before, but the api for accessing it seems rather complex.

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  • Why do I randomly get a "error to use section registered as allowDefinition='MachineToApplication'"

    - by Jedidja
    I have seen a few questions on SO about a similar error when deploying a website, but I seem to randomly get this error when building an ASP.NET MVC website in Visual Studio. Performing a clean usually fixes it, but is there any way to avoid this completely? It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. d:...\obj\debug\package\packagetmp\web.config Note that it is complaining about the root web.config, not the one from the Views subdirectory.

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  • .net/iis6 Limitations of the urlMappings in web.config for extensionless url rewriting

    - by ScottE
    I'm investigating a simple url rewriting setup for iis6 / net 2.0 sites. I've added a . wildcard mapping in IIS that points to the .net executable. I'm also using the urlMappings element in the web.config to add some rewritting urls. I've moved the config outside of the web.config so I can make changes to the list without forcing application restarts, like so: <urlMappings configSource="config\urlMappings.config"> </urlMappings> I'd like to allow our content management to add urls to this file so that we can have extensionless friendly urls. <add url="~/someurl" mappedUrl="index.aspx?page=123" /> This works just fine, but I'm concerned about limitations in the number of entries that I can map in the urlMappings config. I can't seem to find any documentation on this. Has anyone found any limitations? Thanks.

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  • Grails - attempting to include HTPPBuilder - Linkage error

    - by Stefan Kendall
    When I run grails install-dependency, I get this. java.lang.LinkageError: loader constraint violation: loader (instance of <bootloader>) previously initiated loading for a different type with name "org/xml/sax/SAXParseException" What's wrong? I've not used grails dependency management before, and this is rather cryptic. repositories { grailsPlugins() grailsHome() mavenLocal() mavenCentral() } dependencies { runtime 'org.codehaus.groovy.modules.http-builder:http-builder:0.5.0' }

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  • Best/Most Comprehensive API for Stocks/Financial Data

    - by Wilco
    What is the most recommended free/public API for accessing financial market stats and stock quotes (preferrably real-time quotes)? I'm not too picky about how it's exposed (SOAP, REST, some proprietary XML setup, etc.), as long as it's got some decent documentation. I'm planning to build a simple web dashboard in PHP with some basic data (basically a quick-n-dirty homepage), but may want to grow it into a full blown web app eventually. Any thoughts? As I find some, I'll post a list here (feel free to comment if you've used any of them before): Free opentick (soprano) Not Free XigniteRealTime

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  • Windows - put HDD stand-by and sleep mode

    - by iulianchira
    How can I put a hard disk drive in stand-by or sleep mode in Windows, in a programmatic manner. Does the Windows API or any .Net libraries provide any functions to achieve this? (I am aware that I should probably not interfere with Windows's power management mechanism, but this is not something I intend to use in a production environment, it is a proof of concept for some algorithms).

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  • Error while printing crystal report, with that exception message "No printers are installed".

    - by Ahmed
    I got an exception with message "No printers are installed." while printing a report for depolyed release of our website. I use _rptDocument.PrintToPrinter(1, false, 0, 0); to print a report. I got that exception, even I've more than one printer installed on my machine. Also, I don't get that exception while development, everything while development is going fine. I used "Publish Web Site" and "Web Project Deployment" options to publish/deploy website, but I got the same result. Any suggestions?

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