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  • Is an Object the smallest pageable unit in the Heap?

    - by DonnieKun
    Hi, If I have a 2 GB ram and I have an 2 instances of an Object which is 1.5 GB each, the operating system will help and context switch the pages to and from harddisk. What if I have 1 instances but is 3 GB. Can the same paging method breakdown this instances into 2 pages? Or will I encounter out-of-memory issue? Thanks.

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  • What's the consequence when Core Data detects an optimistic locking failure when trying to save?

    - by dontWatchMyProfile
    I get it: When a managed object context saves, the snapshots of all edited objects are compared against the values in the persistent store to see if the PS has changed since the snapshot was made. If it did change, then there's a conflict and optimistic locking failed, according to Apple. But now, what's the consequence of this? What happens next? What are my options in this case?

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  • Explanation of this CSS code..

    - by Sachindra
    I need to know what exactly this code does.. or how this can be used..Actually I used this to repeat the image as a background for the menu .. Need explanation for this.. url("images/home_bg.jpg") repeat-x scroll 0 0 transparent

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  • javascript ul button dropdown crashes after if doing more than 1 button

    - by Apprentice Programmer
    So i have a button drop down list that i want users to select a choice, and basically the button will return the users selection.Pretty straight forward, tested on jsFiddle and works great. Using ruby on rails btw, so i'm not sure if it might conflicting the way rails handle javascript actions. Heres the code: <%= form_for(@user, :html => {:class => 'form-horizontal'}) do |f| %> <fieldset> <p>Do you have experience in Business? If yes, select one of the following: <div class="input-group"> <div class="input-group-btn btn-group"> <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">Select one <span class="caret"></span></button> <ul class="dropdown-menu"> <li ><a href="#">Entrepreneurship</a></li> <li ><a href="#">Investments</a></li> <li ><a href="#">Management</a></li> <li class="divider"></li> <li ><a href="#">All of the Above</a></li> </ul> </div><!-- /btn-group --> <%= f.text_field :years_business , :class => "form-control", :placeholder => "Years of experience" %> </div> Now there are 2 more of these, and basically what happens is that if I select an item for the first time from the dropdown list, everything works great. But the moment I select the same button/or new button, the page immediately kind of refreshes, they selected value will not show up after the list drops down and user selects a value. I viewed the page source and added additional javascript src and types, but still doesnt work. the jquery code: jQuery(function ($) { $('.input-group-btn .dropdown-menu > li:not(.divider)').click(function(){ $(this).closest('ul').prev().text($(this).text()) }) }); Any suggestions what is causing the problem?? The jsfiddle link is here: http://jsfiddle.net/w4s8u/7/

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  • More RAM vs. more servers [closed]

    - by user357972
    I was recently asked "Do you know when to decide between going for more RAM or more servers?" (in the context of scaling data mining applications). I had no idea, so what are some ways to decide? I have very little knowledge of architecture and scaling (my understanding of computer memory and what a server does is limited to the high-level basics), so tips on learning more about these things in general are also very welcome.

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  • Using java provided parameters into xpath function while applying xslt transformation

    - by filmac
    I'm working at a java application that performs some xslt transformation. I would like to match nodes into the xslt document, using a parameter provided by java. Which is the right way to do something like: <xsl:template match="//m:properties/*[contains($pattern,name())]"> because when I launch my application, it claims it's not able to compile the stylesheet, since pattern is not defined but I'm setting it using the setParameter method and I was able to use another parameter defined in the same way but in a different context. Thanks in advance Fil

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  • Proper Form Application Design

    - by Soo
    I'm creating a WinForm application in C# and one of its functions is displaying text in text boxes. I'm coding the logic for querying a database in a separate class and am unable to access the text box element in the class I'm creating (I'm getting a "name" does not exist in the current context error). Do I put all of my form logic into my Form1.cs file?

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  • Expanding collapsed code in Eclipse IDE

    - by rabin
    Instead of going through each (+) sign at the left and clicking them to expand the collapsed code snippets, is there a shortcut or menu item (I couldn't find it, VS has that) to expand all the collapsed code/comments at once? Thanks.

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  • C# setting case constant expressions, do they have to follow a specific order?

    - by Umeed
    Say I'm making a simple program, and the user is in the menu. And the menu options are 1 3 5 7 (i wouldn't actually do that but lets just go with it). and I want to make my switch statement using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace DecisionMaking2 { class Program { static void Main(string[] args) { Console.WriteLine("Please choose an option: "); string SelectedOpt = Console.ReadLine(); double Selection = Convert.ToDouble(SelectedOpt); double MenuOption = (Selection); switch (MenuOption) { case 1: Console.WriteLine("Selected option #1"); break; case 2: Console.WriteLine("Selected option #3"); break; case 3: Console.WriteLine("Selected option #5"); break; case 4: Console.WriteLine("Selected option #7"); break; default: Console.WriteLine("Please choose from the options List!"); break; } } } } would that work? or would I have to name each case constant expression the option number I am using? I went to the microsoft website and I didn't quite pick up on anything i was looking for. . Also while I have your attention, how would I make it so the user chooses from either option and because I don't know which option the user will select " double MenuOption = " could be anything, whatever the user inputs right? so would what I have even work? I am doing this all by hand, and don't get much lab time to work on this as I have tons of other courses to work on and then a boring job to go to, and my PC at home has a restarting issue lol. soo any and all help is greatly appreciated. p.s the computer I'm on right now posting this, doesn't have any compilers, coding programs, and it's not mine just to get that out of the way. Thanks again!

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  • UITableView crashes when adding 2 objects to an empty store, with sections (NSRangeException)

    - by likejy
    UITableView crashes in endUpdate, called by the Managed Object Context "save" method, when: 1- The Core-Data Store is empty 2- The Fetched Result Controller is configured to show sections 3- Two managed objects (or more) have been added to the store When I've searched this situation in google. I've found exactly matched error in this post. It looks like a bug.Is there a any solution to avoid this bug ?

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  • What is a MessageContext?

    - by glopezveiga
    What is this message context? How can I get it? //get SOAPMessageContext SOAPMessageContext soapContext = (SOAPMessageContext)messageContext; // get SOAP message SOAPMessage msg = soapContext.getMessage();

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  • What's the best way to stop multiple instances of a Windows app being launched?

    - by John
    Many Windows apps (like Skype or MSN for instance) don't let you start multiple instances, rather trying to run it a 2nd time just leaves the existing version running. Is this typically done in some simple way - the start-menu shortcut is a 'wrapper' app around the main app - or is there some registry magic you can do to delegate the problem to Windows itself? Specifically dealing with Win32 here (unmanaged C++) but happy to hear more general solutions as long as they are workable on Windows XP or alter.

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  • Highlighting the current page in rails, only works for some pages

    - by raphael_turtle
    I've used this tutorial to highlight the current page in the menu. I have a pages controller with a few static pages, for the home page I simply have def home @title = 'Home and similar for contact pages etc. Then in my main layout file I have <body class="<%= @title %>"> and this works fine to set the correct css, but how do I set @title for my other controllers where there's more than one action?

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  • Error while debug (role redirection)

    - by Chris White
    What is wrong with my role redirection, protected void Login1_LoggedIn(object sender, EventArgs e) { { if (Roles.IsUserInRole(Login1.UserName, "Aemy")) Response.Redirect("~/Admin/Home.aspx"); else if (Roles.IsUserInRole(Login1.UserName, "User")) Response.Redirect("~/Welcome/User1.aspx"); } } Error : The name 'Roles' does not exist in the current context

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  • Symfony: trying to retrieve a variable saved using sfContext::getInstance()

    - by user248959
    Hi, i have these methods in module1/actions/actions.class.php: public function executeMethod1(sfWebRequest $request){ $a = 10; sfContext::getInstance()->set('a', $a); return $this->redirect('module1/method2'); } public function executeMethod2(sfWebRequest $request){ echo sfContext::getInstance()->get('a'); } When i execute module1/method1 i get this error: "The "a" object does not exist in the current context." Any idea? Javi

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  • Does it make sense to test ui components seperately?

    - by Bless Yahu
    I'm working on a webform that has about 15 user controls, separated by context (comments, locations, members/leaders, etc).   If each control can render individually (using real or test data), does it make sense to have a seperate "functional" test page to test them in isolation or is there a better way?

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  • Play video from webserver

    - by Eyla
    Greeting, I'm creating a video play with silverlight 4 and C#. the player is working fine when I set the path for the target folder using this line of code. string FolderPath = this.Context.ApplicationInstance.Server.MapPath(@"~\Video\"); Now I want to place in C:\inetpub\wwwroot and I want to use the IP address of my IIS instead of the folder place. please advice how to modify this line of code to target my IIS. Thank you,

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  • Server-environment and configuration: How bad is fread() etc?

    - by zero
    Hello dear commmunity, good day! I run a little site (now for several months ) that has users accessing big files, for download as well for streaming to the browser. It's fairly active, so assuming the worst, how bad is getting php to read the files that would be stored outside of the webroot and then getting it to echo it to a page dynamically for the browser to then read? My question is: how bad is fread() etc in this context!? zero

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  • Oracle/SQL table attribute question

    - by UnceRawr
    I have been given a context schema for a database i need to make for my coursework but some of the attributes (column names) contain letters in brackets at the end of them such as: *x_Number (Adm) *x_Number (A) *x_Number (P) The problem is i have no idea what these letters mean! Can anyone help?

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  • WPF: Implementation of ApplicationCommands.Copy?

    - by Ikhail
    I just created a menu with Command="ApplicationCommands.Copy" and I thought I had to handle the Executed event of the binding, and add a binding but I just don't need to. Now I'm confused! Where is the implementation of this command? How can it automatically copy a text selected in any of the textboxes I have in my window? thanks!

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  • Bigcommerce Templates file missing

    - by ime
    I am developing a template for bigcommerce site, where i want to show category list and some hard code links in the place of Page menu. Now what i do, just place this %%Panel.SideCategoryList%% in the upper navigation area. Which shows category list right. But the problem is that i didn't find this %%SNIPPET_SideCategoryList%% file. (In snippets folder exist a file with this name, but that file doesn't work even if i remove all contents of that file.)

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