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  • Selecting Users For A/B (Champion/Challenger) Testing

    - by Gordon Guthrie
    We have a framework that offers A/B split testing. You have a 'champion' version of a page and you develop a 'challenger' version of it. Then you run the website and allocate some of your users the champion and some the challenger and measure their different responses. If the challenger is better than the champion at achieving your metrics then you dethrone the champion and develop a new challenger... My question is what mechanisms should I consider to allocate the versions? A number of options spring to mind: odd or even IP address (or sub-segments) ****.****.****.123 gets champion but .124 gets challenger cookie push - check for a champion/challenger cookie, if it doesn't exist randomly allocate the user to one and push the cookie Best practice? suggestions? comments? experience?

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  • What's your all-time creativity problem?

    - by furtelwart
    Sometimes, you stumble with programming. Sometimes, it's a lack of creativity, sometimes, you need a new solution. But there are a lot of situations, you stick in, every time they occur. For myself, it's when I have to create the interface between model and viewer. I designed my data structure very well and drew a GUI prototype, but the missing link won't be written. What are your personal barricades in developing projects?

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  • Google Maps API v3: InfoWindow not sizing correctly

    - by JacobT
    Hi all It appears my InfoWindow, when you click on the home icon on my Google Maps v3, is not properly auto-sizing to the content of the InfoWindow. It gives scrollbars when it should not. The InfoWindow should be properly auto-sizing. Any ideas on why? Link below to live size. http://tinyurl.com/ygktsj Per request, the relevant JavaScript which injects the HTML for the InfoWindow: listing = '<div>Content goes here</div>';

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  • Preparing layout of web-design

    - by RPK
    I am starting design work of my first website. I know very little HTML. I don't know CSS and I am going to learn and use simultaneously. I want to know whether there is any tutorial on how to create a layout for any website. Any tips or best practices to be followed before designing starts?

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  • OpenGLES Add User Interactions

    - by mac
    http://www.switchonthecode.com/tutorials/getting-started-with-opengl-es-for-the-iphone From the above link they created tutorial by No Nib File. But i need to add User interactions like , adding Progress View. Please help me. i am new to iphone OpenGLES. Thanks In Advance.

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  • JSF Navigation issue Facelets and Beans

    - by ortho
    Hi, I have an issue with navigation in my simple jsf system. I have MainBean that has two methods: public String register() and public String login(). I have played with faces-config.xml for several hours and I feel like I miss something very important because I think like I have tried all simple solutions so far :). I have added the mysql connector (jdbc) to Tomcat's lib folder and I am able to register the table to mySQL databse. It even allows my users to log in to the page. The only problem is that I can't use navigation in any other page than login.xhtml. Seems like navigation is only active on this one. I tried to use * but is no joy. I am sure that there is a simple fix for that and someone will come up with correct solution soon. Let's skip all the mysql part and try to fix the navigation issue please. faces-config.xml: http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd" version="1.2" com.sun.facelets.FaceletViewHandler mainBean dk.itu.beans.MainBean session registerBean dk.itu.beans.RegisterBean session /login.xhtml success /welcome.xhtml failure /login_failed.xhtml sign /register.xhtml /login_failed.xhtml back /login.xhtml Here the last navigation-rule from login_failed.xhtml does not work at all. login.xhtml (which is the main - starting view): login_failed.xhtml: Here I tried many options. I used action="#{mainBean.register})" method that returns "sign" string and none of these worked. There is one more file (not specified in faces-config.xml file, because did not work either - but going from login.xhtml by button works fine. I tried to manage navigation from login_failed.xhtml first, then I will apply the same rool for registration to come back to login page when customer registers his nick name). register.xhtml: Basicaly mainBean.register now calls the database and returns string, but obviously it doesn't navigate to any view (but gives an entry to database). I believe it is simple fix for most of the experienced web developers and any help will be greately appreciated. I use eclipse, tomcat 6 and Widows Vista if that helps :) Thank you in advance. Kindest regards.

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  • Vsync in Flex/Flash/AS3?

    - by oshyshko
    I work on a 2D shooter game with lots of moving objects on the screen (bullets etc). I use BitmapData.copyPixels(...) to render entire screen to a buffer:BitmapData. Then I "copyPixels" from "buffer" to screen:BitmapData. The framerate is 60. private var bitmap:Bitmap = new Bitmap(); private var buffer:Bitmap = new Bitmap(); private function start():void { addChild(bitmap); } private function onEnterFrame():void { // render into "buffer" // copy "buffer" -> "bitmap" } The problem is that the sprites are tearing apart: some part of a sprite got shifted horizontally. It looks like a PC game with VSYNC turned off. Did anyone solve this problem? UPDATE: the question is not about performance, but about getting rid of screen tearing. [!] UPDATE: I've created another question and here you may try both implementations: using Flash way or BitmapData+copyPixels()

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  • ASP.NET MVC - Views location Problem : The view 'Index' or its master was not found

    - by user326873
    Hi all, I've create an asp.net MVC 2 project, it works fine!! I've been asked to integrate the project in an existing web project in classic asp.net (I've add the folder containing the source, and not make a new project, because they have to bee in same project) I've configured my web.config file <pages pageBaseType="System.Web.UI.Page" > <controls> <add tagPrefix="asp" namespace="System.Web.UI" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add tagPrefix="asp" namespace="System.Web.UI.WebControls" assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </controls> <namespaces> <add namespace="System.Web.Mvc" /> <add namespace="System.Web.Mvc.Ajax" /> <add namespace="System.Web.Mvc.Html" /> <add namespace="System.Web.Routing" /> <add namespace="System.Linq" /> <add namespace="System.Collections.Generic" /> <add namespace="SearchApp.Helpers.CheckBoxList"/> <add namespace="SearchApp.Helpers.Pager"/> </namespaces> </pages> <httpModules> <add name="ScriptModule" type="System.Web.Handlers.ScriptModule, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> <add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" /> </httpModules> <!--- END MVC config section--> and my global.asax file (I'm working under IIS 5.1) : public static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "SearchApp", // Route name "SearchApp/{controller}.aspx/{action}/{id}", // URL with parameters new { controller = "Search", action = "Index", id = "" } // Parameter defaults ); } protected void Application_Start(Object sender, EventArgs e) { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); } The hierarchy of the project is (I can’t find how to insert Image in the post): +Project ++MVC2AppFolder +++Controller ++++SearchController.cs +++Views ++++Search +++++Index.aspx ++global.asax ++web.config as you can see the global.asax is not in the MVC App folder when I try to access the page Search/index.aspx using this url http://localhost/cstfwsrv/SearchApp/Search.aspx/Index[^] have the following error : I The view 'Index' or its master was not found. The following locations were searched: ~/Views/Search/Index.aspx ~/Views/Search/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: The view 'Index' or its master was not found. The following locations were searched: ~/Views/Search/Index.aspx ~/Views/Search/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [InvalidOperationException: The view 'Index' or its master was not found. The following locations were searched: ~/Views/Search/Index.aspx ~/Views/Search/Index.ascx ~/Views/Shared/Index.aspx ~/Views/Shared/Index.ascx] System.Web.Mvc.ViewResult.FindView(ControllerContext context) +253553 System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context) +139 System.Web.Mvc.ControllerActionInvoker.InvokeActionResult(ControllerContext controllerContext, ActionResult actionResult) +10 System.Web.Mvc.<>c__DisplayClass14.<InvokeActionResultWithFilters>b__11() +20 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter(IResultFilter filter, ResultExecutingContext preContext, Func`1 continuation) +251 System.Web.Mvc.<>c__DisplayClass16.<InvokeActionResultWithFilters>b__13() +19 System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext, IList`1 filters, ActionResult actionResult) +178 System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +314 System.Web.Mvc.Controller.ExecuteCore() +105 System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +39 System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +7 System.Web.Mvc.<>c__DisplayClass8.<BeginProcessRequest>b__4() +34 System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21 System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +59 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +44 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +7 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8677678 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 As you can see he search for the Index.aspx page under ~/Views/Search/Index.aspx , wich is under ~/MVC2AppFolder/Views/Search/Index.aspx Is there a way to set in the Route Method, or any where else, the View Path? Thanks’ in advance

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  • CSS 100% Height Div

    - by Neb
    Im making a website http://nebkat.com/beta/index.php and there is a grey background and a white background for content(see for yourself). The problem is that I cant set the white part to be 100% height. It only stays up to the title(Welcome...) and then it stops.

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  • Choosing a Java Web Framework now?

    - by hbagchi
    we are in the planning stage of migrating a large website which is built on a custom developed mvc framework to a java based web framework which provides built-in support for ajax, rich media content, mashup, templates based layout, validation, maximum html/java code separation. Grails looked like a good choice, however, we do not want to use a scripting language. We want to continue using java. Template based layout is a primary concern as we intend to use this web application with multiple web sites with similar functionality but radically different look and feel. Is portal based solution a good fit to this problem? Any insights on using "Spring Roo" or "Play" will be very helpful. I did find similar posts like this, but it is more than a year old. Things have surely changed in the mean time! EDIT 1: Thanks for the great answers! This site is turning to be the best single source for in-the-trenches programmer info. However, I was expecting more info on using a portal-cms duo. Jahia looks goods. Anything similar?

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  • Asp.net Webdeployment Project override applicationSettings

    - by citronas
    I got a web deyploment project for a web application project in vs 2008. While building the web deployment project, I want to replace properties in the web.config. My settings are autogenrated by the deisgner. <applicationSettings> <NAMESPACE.Properties.Settings> <setting name="Testenvironment" serializeAs="String"> <value>True</value> </setting> </NAMESPACE.Properties.Settings> </applicationSettings> In the config file which contains the settings for the specific server looks like the following: <?xml version="1.0"?> <applicationSettings> <NAMESPACE.Properties.Settings> <setting name="Testenvironment" serializeAs="String"> <value>False</value> </setting> </NAMESPACE.Properties.Settings> </applicationSettings> Sadly, this does not work. I get an error "The format of a configSource file must be an element containing the name of the section" that highlights the second line (2nd example code). How must the Tag be named in order to make evertything work? Edit: Deleting the "applicationSetting"-Tags does not work either.

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  • A simple way to implement pathfinding using bullet physics - iPhone SDK

    - by Dave
    Hi, I have bullet physics set up and working on the iPhone but now I want to implement some sort of path finding with it. The problem is I have no idea where to start, the level is pretty simple just a lot of pillars that I want the 'bad guys' to navigate around to get to the player character. Do you have any suggestions or are there any tutorials you recommend for pathfinding using this on the iPhone?

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  • Sparxsystems Enterprise Architect and issuses/tasks tracking system?

    - by peperg
    We (developement team 4 upto 7 people) use Sparxsystems EA for requirement analysis, modeling etc. Do you know any well-working methods to use EA and some task/issue tracking system like Redmine/Mantis/Trac ? The problem is not to duplicate functionality (there are issues/tasks/changes in Redmine and EA) but to have some user friendly interface (preffered web) to manage tasks and issues. By user-friendly I mean "my tasks" page add effort / time tracking easy "add issue" by everyone (simple bug tracking system) mail notifications

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  • Gantt Chart online

    - by Luca
    I need to insert a horizontal bar chart in a web page. The thing I have to do is very similar to a Gantt Chart. I'd like to use a javascript library for the purpose. I tried jsgantt, but actually it is not very beautiful. I could evaluate also a server generation of the graph. In case my server side language is Python. It will be part of an internal project with no internet access, so Google Charts isn't an option.

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  • Web publishing system with code highlighting

    - by Dragos Toader
    I'd like to publish some of the many programs I've written on the web. Is there a syntax highlighting Linux web publishing application (CMS/Blog/RoR app) that displays syntax for C++, Python, Bash scripts, SQL, VBA, awk, Erlang, java, makefiles, Ruby, Pascal and other languages? The more syntax settings configuration files, the better. The extensions I have in Textpad (for which I have syntax highlighting -- syn files) are .as, .asm, .asp, .awk, .bas, .bat, .c, .conf, .cpp, .cs, .ctl, .dfm, .dsc, .erl, .fnc, .h, .hpp, .inf, .ini, .jav, .java, .mak, .nsh, .nsi, .ora, .pas, .pkb, .pks, .pl, .prc, .py, .reg, .rsp, .sh, .sql, .syn, .tcl, .trg, .vw, .xml, .xsl, .xslfo

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  • VS 2010 very slow

    - by kaze
    I have just upgraded to VS 2010, and I have performance problems which I did not have before (in VS 2008). The most annoying thing is that it freezes while I work in the text editor. Sometimes when it freezes I see that it is saving auto recovery information, but not always. Almost anything I do gives an unacceptable long delay, like saving, starting to debug, ending debug session, switching between design and code view, and doing WinForms designing. I have some parts of my home directory on a mapped network drive. I suspect that that might be a part of the problem. Is it possible to configure VS 2010 to use exclusively local disk for its "internal" work perhaps? Any hints would be appreciated! Has anyone else experienced these kinds of problems?

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  • Explanation of Pingdom Results

    - by Computer Guru
    Hi, I'm trying to optimize my page load times, and I'm using Pingdom to test the site response times. However, I'm not exactly sure what the various components of the "time bar" mean. Example link: http://tools.pingdom.com/fpt/?url=http://neosmart.net/forums//&id=2230361 According to them, the portion of the bar that is yellow is the time between "start" and "connect" and the portion of the bar that is green is the time between "connect" and "first byte" with the blue section being the actual transfer time (time between "first byte" and "last byte"). If I'm trying to the first two (which take very long in my case), what's the recommended course of action? Thanks.

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  • Can someone recommend a bells and whistles CSS framework?

    - by Ali A
    I am looking for a bells and whistles CSS framework. I have found a number online that deal with "grids", and some that deal with "typography" and others that deal with "resetting". What I have not found is something that will give my web applications a consistent reusable style or theme. I guess it would have to have a number of predefined elements that do things, for example: div.boxed {...} And then a number of themes or plugins that provide these in a consistent way. Javascript toolkits like ExtJS, YUI, and also GWT have their own skinability, and I guess this is the featureset that I want, but independent of any Javascript library. (Open source would be best, but we don't mind paying) Edit: 5 good answers, but I have seen all those frameworks, and they are not enough of what I am looking for. Perhaps what I am looking for doesn't exist. Or I haven't explained properly. I will give them a good going over and see.

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  • C# or C++ game: many 16 color images loaded into RAM. Efficient solution?

    - by user560639
    I am in the planning stages of creating a fighting game and am unsure how to handle one issue relating to memory. Background info: - Still debating whether to use C# (XNA) or C++. We do not want to commit to either until we have explored how to solve this problem in both languages. - Using a max of 256MB RAM would be great if possible. - Two characters will be present at a time, and these characters can only change between battles. There is time to load/free memory between battles, but the game needs to run at a constant 60 drawn frames per second during combat. Each frame is 16.67ms - The total number of images per character is in the low hundreds. Each image is roughly 200x400 pixels. Only one image from each character will be displayed at any given moment. Uncompressed, each image takes roughly 300kb from my calculations; upwards of 100MB for a whole character. This is pushing too close to the 256MB limit given that memory will be needed for some other resources as well. Since each image can be made with a total of 16 colors. Theoretically I should be able to use 1/8th the space if I can take advantage of this. I've looked around but haven't found any word of native support for paletted images. (Storing each pixel using fewer bits that each map to a 32-bit RGBa color) I was considering making my own file format with 4 bits per pixel (and some extra palette info), loading all the images of this new format into RAM before battle, and then when drawing any specific image, decompress only that image into a raw image so it can be rendered properly. I don't know if it's realistic to perform so many assignment operations (appx 200x400 for each character = 160k) each frame. It sounds very hacky to me. Does anyone have advice on whether my solution sounds reasonable, and if there is perhaps a better one available? Thanks so much! (I also attempted to use an image with only 1 channel, then use a shader to perform a series of if statements to translate various values into other colors. Unfortunately, there were too many lines of code for the shader. It is also rather hacky and does not scale well.)

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