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• JVM version manager

  - by luacassus

  Is there Ruby Version Manager (http://rvm.beginrescueend.com) equivalent for the Java world? I'm looking for tool which allow me to easily download and install a new JVMs and switch between them. For example: jvm install <version> jvm list - will list installed JVMs on my system jvm use jdk1.6 - will switch my env to jdk 1.6 version, etc.

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• Dynamic menu items in WPF

  - by mattdekrey

  Is there a way to create a section on a menu for a list of menu items to be populated by something like an ObservableCollection? I'd like to replicate the Window functionality in Visual Studio, where the open document tabs are listed in a numbered list, limited to the first 10.

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• Uncatchable errors in node.js

  - by Peter Burns

  So I'm trying to write a simple TCP socket server that broadcasts information to all connected clients. So when a user connects, they get added to the list of clients, and when the stream emits the close event, they get removed from the client list. This works well, except that sometimes I'm sending a message just as a user disconnects. I've tried wrapping stream.write() in a try/catch block, but no luck. It seems like the error is uncatchable.

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• SharePoint Error - Datasheet View refuses to show up!

  - by Marius

  Hi, Recently the DataSheet view of my list refuses to dispaly. I tried numerouse times and with no luck. Other lists works just fine, except for this one. there is a Java error message on the left bottom corner of the screen that disapears in 2 seconds, then it renders the list in Standard view any time you try it. I even created a new Datasheet View - the result a Standard View. Any suggestions? Thanks,

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• How can I open a Drupal 6 submenu programmatically?

  - by Mel

  I have a menu with two levels, the second level shown in the secondary menu. How can I open the second menu level programmatically from pages other than those linked in the menu? I've looked at theme_preprocess_page and others but can't figure out how the change the menu item state from collapsed to active.

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• How to Declare an Array of Generic Dictionaries in C#?

  - by Nave

  I want to create an array of Dictionaries. But the array size is unknown. For integer, i used List to obtain the integer array of unknown size. But in the case of Dictionary, am not able to create a list of Dictionary. Is thr any wayz by which this can be done? Dictionary(int, String) paramList=null;I am want to create the array of paramList(above). I am using C Sharp.

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• Facebook/Youtube Like Multiple Items Select

  - by bradenkeith

  Before we continue: It can't be a predefined list. I need it sort of like this: http://loopj.com/tokeninput/demo.html ... A jQuery plugin that allows the user to type a string of words, press enter, and it makes it a block of text, from there they can press the X to get rid of it, or type more key words into the input area. I've found many things that do this, but all are pulling information from a predefined list of choices.

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• Scrum stories and behind the scenes features

  - by James P.

  As I understand things, the Scrum backlog is composed of a series of Stories that represent something for the end user and this is further decomposed into Features. If this is the case, where does all the behind the scenes features go that aren't really linked to a story but are still useful? For example, say I'm making an application that catalogs the contents of a hard drive. A story wouldn't require it but having an md5 hash on each file would be a nice feature.

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• Mocking methods that call other methods Still hit database.Can I avoid it?

  - by devnet247

  Hi, It has been decided to write some unit tests using moq etc..It's lots of legacy code c# (this is beyond my control so cannot answer the whys of this) Now how do you cope with a scenario when you dont want to hit the database but you indirectly still hit the database? This is something I put together it's not the real code but gives you an idea. How would you deal with this sort of scenario? Basically calling a method on a mocked interface still makes a dal call as inside that method there are other methods not part of that interface?Hope it's clear [TestFixture] public class Can_Test_this_legacy_code { [Test] public void Should_be_able_to_mock_login() { var mock = new Mock<ILoginDal>(); User user; var userName = "Jo"; var password = "password"; mock.Setup(x => x.login(It.IsAny<string>(), It.IsAny<string>(),out user)); var bizLogin = new BizLogin(mock.Object); bizLogin.Login(userName, password, out user); } } public class BizLogin { private readonly ILoginDal _login; public BizLogin(ILoginDal login) { _login = login; } public void Login(string userName, string password, out User user) { //Even if I dont want to this will call the DAL!!!!! var bizPermission = new BizPermission(); var permissionList = bizPermission.GetPermissions(userName); //Method I am actually testing _login.login(userName,password,out user); } } public class BizPermission { public List<Permission>GetPermissions(string userName) { var dal=new PermissionDal(); var permissionlist= dal.GetPermissions(userName); return permissionlist; } } public class PermissionDal { public List<Permission> GetPermissions(string userName) { //I SHOULD NOT BE GETTING HERE!!!!!! return new List<Permission>(); } } public interface ILoginDal { void login(string userName, string password,out User user); } public interface IOtherStuffDal { List<Permission> GetPermissions(); } public class Permission { public int Id { get; set; } public string Name { get; set; } } Any suggestions? Am I missing the obvious? Is this Untestable code? Very very grateful for any suggestions.

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• How To Get Values From UISegmentcontroller.

  - by iappdevs

  Hi, I Created Segment Control through Interface Builder. Created a IBAction and Linked to Value Changed Option of segment Controller. (IBAction)GenderBttonAction:(id)sender { printf("\n Segemt Controll"); } When i click on segment controller this method is calling , but how would i get the seleced index value of segment controller. Please help me dears.

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• Ruby on Rails activerecord find average in one sql and Will_Paginate

  - by Darkerstar

  Hi all I have the following model association: a student model and has_many scores. I need to make a list showing their names and average, min, max scores. So far I am using student.scores.average(:score) on each student, and I realise that it is doing one sql per student. How can I make the list with one joined sql? Also how would I use that with Will_Paginate plugin? Thank you

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• How can I add a function reference to an object literal

  - by rob

  I need to add binders to DOM elements after rendering is done. Therefore I want to pass a list with (ID, callback) tuples to the rendering function so it can bind it after the rendering is done. So i would like to create a list of such objects and pass it to the rendering function: {id:'#someDOMelement', callback: someObject.someFunction} and bind it after the rendering like this: $(binders[i].id).bind('click', binders[i].callback);

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• BFS algorithm problem

  - by Gorkamorka

  The problem is as follows: A wanderer begins on the grid coordinates (x,y) and wants to reach the coordinates (0,0). From every gridpoint, the wanderer can go 8 steps north OR 3 steps south OR 5 steps east OR 6 steps west (8N/3S/5E/6W). How can I find the shortest route from (X,Y) to (0,0) using breadth-first search? Clarifications: Unlimited grid Negative coordinates are allowed A queue (linked list or array) must be used No obstacles present

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• Disposable Registry: good pattern?

  - by illdev

  Imagine a: public class Global : IDisposable { private static readonly List<IDisposable> Disposables = new List<IDisposable>(); public void ApplicationStart() { var heavyLifter = new HeavyLifter(); Disposables.Add(heavyLifter); } public void Dispose() { Disposables.ForEach(d => d.Dispose()); } } I am somewhat inexperienced with IDisposable. Is this a viable pattern?

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• cons operator (::) in F#

  - by Max

  The :: operator in F# always prepends elements to the list. Is there an operator that appends to the list? I'm guessing that using @ operator [1; 2; 3] @ [4] would be less efficient, than appending one element.

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• Load test results VSTS 2008

  - by Julia

  Can anybody explain why load test result on Graph are different form load test result on Table Page. If compare Min and Avg page response time they are the same. But if we compare figures in Max column they are different for the same page and the same load rest run. see linked images for more details. http://cid-ee8b34c203174724.skydrive.live.com/self.aspx/.Public/3.png

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• Sort directory listing using RecursiveDirectoryIterator

  - by Scott Saunders

  I'm using RecursiveDirectoryIterator and RecursiveIteratorIterator to build a file listing tree using code like below. I need to the list to be sorted - either directories then files alphabetically, or just alphabetically. Can anyone tell me how to sort the file list? $dir_iterator = new RecursiveDirectoryIterator($groupDirectory); $iterator = new RecursiveIteratorIterator($dir_iterator, RecursiveIteratorIterator::SELF_FIRST); foreach ($iterator as $file) { // do stuff with $file }

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• MVC, can model save/load its data?

  - by fuzzygoat

  Quick question, my data model is a singleton object and it contains a list of names I want archive. My idea is to make the model responsible for loading / saving this data. The ModelLoad will then be called by the ViewControllerviewDidLoad and the ModelSave by ViewControllerapplicationWillTerminate. I could do the load / save directly within the ViewController, but this would be messy as the list of names are on instance variable of the model. gary

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• calling wcf service with parameter from silverlight4

  - by punam

  I write WCF as follows namespace EventViewer.Web { [ServiceContract(Namespace = "")] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class EventVwrService { [OperationContract] public IEnumerable GetFieldValues(FieldType field) { switch (field) { case FieldType.Source: return new List() { "SQL Server", "BizTalk Server", "MSIInstaller", "ADV", "SQLAgent" }; case FieldType.EventId: return new List() { "10115", "20988", "23434", "12323", "890099" }; default: throw new Exception ("Unknown type"); } } } } I have to call WCf according to combobox selectied items. Please help me

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• Linux, GNU GCC, ld, version scripts and the ELF binary format -- How does it work??

  - by themoondothshine

  Hey all, I'm trying to learn more about library versioning in Linux and how to put it all to work. Here's the context: -- I have two versions of a dynamic library which expose the same set of interfaces, say libsome1.so and libsome2.so. -- An application is linked against libsome1.so. -- This application uses libdl.so to dynamically load another module, say libmagic.so. -- Now libmagic.so is linked against libsome2.so. Obviously, without using linker scripts to hide symbols in libmagic.so, at run-time all calls to interfaces in libsome2.so are resolved to libsome1.so. This can be confirmed by checking the value returned by libVersion() against the value of the macro LIB_VERSION. -- So I try next to compile and link libmagic.so with a linker script which hides all symbols except 3 which are defined in libmagic.so and are exported by it. This works... Or at least libVersion() and LIB_VERSION values match (and it reports version 2 not 1). -- However, when some data structures are serialized to disk, I noticed some corruption. In the application's directory if I delete libsome1.so and create a soft link in its place to point to libsome2.so, everything works as expected and the same corruption does not happen. I can't help but think that this may be caused due to some conflict in the run-time linker's resolution of symbols. I've tried many things, like trying to link libsome2.so so that all symbols are alised to symbol@@VER_2 (which I am still confused about because the command nm -CD libsome2.so still lists symbols as symbol and not symbol@@VER_2)... Nothing seems to work!!! Help!!!!!! Edit: I should have mentioned it earlier, but the app in question is Firefox, and libsome1.so is libsqlite3.so shipped with it. I don't quite have the option of recompiling them. Also, using version scripts to hide symbols seems to be the only solution right now. So what really happens when symbols are hidden? Do they become 'local' to the SO? Does rtld have no knowledge of their existence? What happens when an exported function refers to a hidden symbol?

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• What does BizSpark currently offer?

  - by chobo2

  I am looking at bizspark but the page with the software seems outdated. I am wondering if anyone has a current list or can confirm if that is the current list. http://www.bizspark.com/v2/Programs/Pages/BizSpark_Software_and_Tools.aspx Like it still say you get Vs 2008? How about 2010? What version of 2010? How many licenses?

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• drop down not retaining selected value after post back

  - by Bmw

  I'm using classic asp, I have a drop down list that the user selects and then presses submit. After they press submit the drop down list is going back to the default value instead of what they selected. Is there anyway to keep the state of the drop down between post backs instead of it going back to the default? Can post code sample if needed. Thanks!

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• ways to store data in c#

  - by Audel

  I am looking for ways to store data in a windows form application in C#. I want to make the input data of a system persistent, so when I close my program and open it again, the data is retrieved. Which ways are of doing this besides creating a linked database? Examples are gladly appreciated regards

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• Python's JSON module doesn't use __get__?

  - by Matt

  When I serialize a list of objects with a custom __get__ method, __get__ is not called and the raw (unprocessed by custom __get__) value from __set__ is used. How does Python's json module iterate over an item? Note: if I iterate over the list before serializing, the correct value returned by __get__ is used.

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• Find out why Xcode has decided to link to a particular library

  - by andygeers

  I'm using the Unity 3D engine to build an iPhone app, and when I go to generate my Xcode project for compilation, it includes a few fairly large libraries: Mono.Security.dll.s, System.dll.s, System.Core.dll.s, etc. I don't know if this question is really an Xcode question or a Unity question, but I'm trying to figure out why each of those libraries is being linked - which functions / classes are being referenced - ideally so that I can rewrite my code to remove as many of the dependencies as possible. Does anybody know a way to find this information out?

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