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  • Do you code variables in your language?

    - by Phil Hannent
    I am just working on a project where the library has an object with the property color, however being British I always use colour when writing variables and properties. I also just found some legacy code where the British developer used color in a variable name. Is American English the default for development now?

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  • Source Code Browser

    - by James Fielding
    Hello I'm looking for a piece of relatively simple software to browse large C++ project. What I would like is something that is somewhere between a simple text editor and a full-blown IDE like Eclipse. I would like syntax highlighting, a way to see all classes/methods defined in a file, a way to find where a particular method is called from and where a variable is declared/defined. Any ideas? Thank you!

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  • What is your most useful C/C++ snippet?

    - by maddizzyro
    Hello all, It seems that every project has an "util" module with various code snippets used throughout other files and which don't fit any particular pattern. I want to improve my "util" library, so please post here the most useful class / function / macro that you use in all your C/C++ projects. Please keep the entries small (under 100 lines) and give only one example per post. Thank you.

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  • Code formatting for initializing lists

    - by Roman
    I've just found in my java project this code snippet: List<IssueType> selectedIssueTypes = new ArrayList<IssueType>(); for (Object item : selectedItems) selectedIssueTypes.add((IssueType) item); How do you think, can this style be used?

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  • code to idetntify the number

    - by [email protected]
    Hi All, I got one problem while doing one TAPI application based project in C#. I'm using ITAPI3.dll My problem is.. i'm not getting incoming call information. To get the incoming call information, i'm using getcallinfo function. but it is showing empty message.

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  • Popping a modal view from anywhere in code

    - by ConfusedNoob
    Is it possible to 'pop' a view from any point in an iOS application. For example, I want an event to trigger a view sliding in (modal) and the event can happen at any time, on any screen in the application. Also, we'd like this to be something that can be included in other projects and would prefer them not to have to do anything special to these projects (other than wire in the referenced project).

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  • x-code cannot see my class

    - by dubbeat
    This is pretty strange. I have a class in Classes folder of my project (a .h file and a .m file). When I try to import it like so #import <myClass.h> I get an error saying "no such file or directory". It is definitely there. What could be going on?

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  • ASP.NET MVC 3 Hosting :: How to Deploy Web Apps Using ASP.NET MVC 3, Razor and EF Code First - Part I

    - by mbridge
    First, you can download the source code from http://efmvc.codeplex.com. The following frameworks will be used for this step by step tutorial. public class Category {     public int CategoryId { get; set; }     [Required(ErrorMessage = "Name Required")]     [StringLength(25, ErrorMessage = "Must be less than 25 characters")]     public string Name { get; set;}     public string Description { get; set; }     public virtual ICollection<Expense> Expenses { get; set; } } Expense Class public class Expense {             public int ExpenseId { get; set; }            public string  Transaction { get; set; }     public DateTime Date { get; set; }     public double Amount { get; set; }     public int CategoryId { get; set; }     public virtual Category Category { get; set; } }    Define Domain Model Let’s create domain model for our simple web application Category Class We have two domain entities - Category and Expense. A single category contains a list of expense transactions and every expense transaction should have a Category. In this post, we will be focusing on CRUD operations for the entity Category and will be working on the Expense entity with a View Model object in the later post. And the source code for this application will be refactored over time. The above entities are very simple POCO (Plain Old CLR Object) classes and the entity Category is decorated with validation attributes in the System.ComponentModel.DataAnnotations namespace. Now we want to use these entities for defining model objects for the Entity Framework 4. Using the Code First approach of Entity Framework, we can first define the entities by simply writing POCO classes without any coupling with any API or database library. This approach lets you focus on domain model which will enable Domain-Driven Development for applications. EF code first support is currently enabled with a separate API that is runs on top of the Entity Framework 4. EF Code First is reached CTP 5 when I am writing this article. Creating Context Class for Entity Framework We have created our domain model and let’s create a class in order to working with Entity Framework Code First. For this, you have to download EF Code First CTP 5 and add reference to the assembly EntitFramework.dll. You can also use NuGet to download add reference to EEF Code First. public class MyFinanceContext : DbContext {     public MyFinanceContext() : base("MyFinance") { }     public DbSet<Category> Categories { get; set; }     public DbSet<Expense> Expenses { get; set; }         }   The above class MyFinanceContext is derived from DbContext that can connect your model classes to a database. The MyFinanceContext class is mapping our Category and Expense class into database tables Categories and Expenses using DbSet<TEntity> where TEntity is any POCO class. When we are running the application at first time, it will automatically create the database. EF code-first look for a connection string in web.config or app.config that has the same name as the dbcontext class. If it is not find any connection string with the convention, it will automatically create database in local SQL Express database by default and the name of the database will be same name as the dbcontext class. You can also define the name of database in constructor of the the dbcontext class. Unlike NHibernate, we don’t have to use any XML based mapping files or Fluent interface for mapping between our model and database. The model classes of Code First are working on the basis of conventions and we can also use a fluent API to refine our model. The convention for primary key is ‘Id’ or ‘<class name>Id’.  If primary key properties are detected with type ‘int’, ‘long’ or ‘short’, they will automatically registered as identity columns in the database by default. Primary key detection is not case sensitive. We can define our model classes with validation attributes in the System.ComponentModel.DataAnnotations namespace and it automatically enforces validation rules when a model object is updated or saved. Generic Repository for EF Code First We have created model classes and dbcontext class. Now we have to create generic repository pattern for data persistence with EF code first. If you don’t know about the repository pattern, checkout Martin Fowler’s article on Repository Let’s create a generic repository to working with DbContext and DbSet generics. public interface IRepository<T> where T : class     {         void Add(T entity);         void Delete(T entity);         T GetById(long Id);         IEnumerable<T> All();     } RepositoryBasse – Generic Repository class protected MyFinanceContext Database {     get { return database ?? (database = DatabaseFactory.Get()); } } public virtual void Add(T entity) {     dbset.Add(entity);            }        public virtual void Delete(T entity) {     dbset.Remove(entity); }   public virtual T GetById(long id) {     return dbset.Find(id); }   public virtual IEnumerable<T> All() {     return dbset.ToList(); } } DatabaseFactory class public class DatabaseFactory : Disposable, IDatabaseFactory {     private MyFinanceContext database;     public MyFinanceContext Get()     {         return database ?? (database = new MyFinanceContext());     }     protected override void DisposeCore()     {         if (database != null)             database.Dispose();     } } Unit of Work If you are new to Unit of Work pattern, checkout Fowler’s article on Unit of Work . According to Martin Fowler, the Unit of Work pattern "maintains a list of objects affected by a business transaction and coordinates the writing out of changes and the resolution of concurrency problems." Let’s create a class for handling Unit of Work public interface IUnitOfWork {     void Commit(); } UniOfWork class public class UnitOfWork : IUnitOfWork {     private readonly IDatabaseFactory databaseFactory;     private MyFinanceContext dataContext;       public UnitOfWork(IDatabaseFactory databaseFactory)     {         this.databaseFactory = databaseFactory;     }       protected MyFinanceContext DataContext     {         get { return dataContext ?? (dataContext = databaseFactory.Get()); }     }       public void Commit()     {         DataContext.Commit();     } } The Commit method of the UnitOfWork will call the commit method of MyFinanceContext class and it will execute the SaveChanges method of DbContext class.   Repository class for Category In this post, we will be focusing on the persistence against Category entity and will working on other entities in later post. Let’s create a repository for handling CRUD operations for Category using derive from a generic Repository RepositoryBase<T>. public class CategoryRepository: RepositoryBase<Category>, ICategoryRepository     {     public CategoryRepository(IDatabaseFactory databaseFactory)         : base(databaseFactory)         {         }                } public interface ICategoryRepository : IRepository<Category> { } If we need additional methods than generic repository for the Category, we can define in the CategoryRepository. Dependency Injection using Unity 2.0 If you are new to Inversion of Control/ Dependency Injection or Unity, please have a look on my articles at http://weblogs.asp.net/shijuvarghese/archive/tags/IoC/default.aspx. I want to create a custom lifetime manager for Unity to store container in the current HttpContext. public class HttpContextLifetimeManager<T> : LifetimeManager, IDisposable {     public override object GetValue()     {         return HttpContext.Current.Items[typeof(T).AssemblyQualifiedName];     }     public override void RemoveValue()     {         HttpContext.Current.Items.Remove(typeof(T).AssemblyQualifiedName);     }     public override void SetValue(object newValue)     {         HttpContext.Current.Items[typeof(T).AssemblyQualifiedName] = newValue;     }     public void Dispose()     {         RemoveValue();     } } Let’s create controller factory for Unity in the ASP.NET MVC 3 application.                 404, String.Format(                     "The controller for path '{0}' could not be found" +     "or it does not implement IController.",                 reqContext.HttpContext.Request.Path));       if (!typeof(IController).IsAssignableFrom(controllerType))         throw new ArgumentException(                 string.Format(                     "Type requested is not a controller: {0}",                     controllerType.Name),                     "controllerType");     try     {         controller= container.Resolve(controllerType) as IController;     }     catch (Exception ex)     {         throw new InvalidOperationException(String.Format(                                 "Error resolving controller {0}",                                 controllerType.Name), ex);     }     return controller; }   } Configure contract and concrete types in Unity Let’s configure our contract and concrete types in Unity for resolving our dependencies. private void ConfigureUnity() {     //Create UnityContainer               IUnityContainer container = new UnityContainer()                 .RegisterType<IDatabaseFactory, DatabaseFactory>(new HttpContextLifetimeManager<IDatabaseFactory>())     .RegisterType<IUnitOfWork, UnitOfWork>(new HttpContextLifetimeManager<IUnitOfWork>())     .RegisterType<ICategoryRepository, CategoryRepository>(new HttpContextLifetimeManager<ICategoryRepository>());                 //Set container for Controller Factory                ControllerBuilder.Current.SetControllerFactory(             new UnityControllerFactory(container)); } In the above ConfigureUnity method, we are registering our types onto Unity container with custom lifetime manager HttpContextLifetimeManager. Let’s call ConfigureUnity method in the Global.asax.cs for set controller factory for Unity and configuring the types with Unity. protected void Application_Start() {     AreaRegistration.RegisterAllAreas();     RegisterGlobalFilters(GlobalFilters.Filters);     RegisterRoutes(RouteTable.Routes);     ConfigureUnity(); } Developing web application using ASP.NET MVC 3 We have created our domain model for our web application and also have created repositories and configured dependencies with Unity container. Now we have to create controller classes and views for doing CRUD operations against the Category entity. Let’s create controller class for Category Category Controller public class CategoryController : Controller {     private readonly ICategoryRepository categoryRepository;     private readonly IUnitOfWork unitOfWork;           public CategoryController(ICategoryRepository categoryRepository, IUnitOfWork unitOfWork)     {         this.categoryRepository = categoryRepository;         this.unitOfWork = unitOfWork;     }       public ActionResult Index()     {         var categories = categoryRepository.All();         return View(categories);     }     [HttpGet]     public ActionResult Edit(int id)     {         var category = categoryRepository.GetById(id);         return View(category);     }       [HttpPost]     public ActionResult Edit(int id, FormCollection collection)     {         var category = categoryRepository.GetById(id);         if (TryUpdateModel(category))         {             unitOfWork.Commit();             return RedirectToAction("Index");         }         else return View(category);                 }       [HttpGet]     public ActionResult Create()     {         var category = new Category();         return View(category);     }           [HttpPost]     public ActionResult Create(Category category)     {         if (!ModelState.IsValid)         {             return View("Create", category);         }                     categoryRepository.Add(category);         unitOfWork.Commit();         return RedirectToAction("Index");     }       [HttpPost]     public ActionResult Delete(int  id)     {         var category = categoryRepository.GetById(id);         categoryRepository.Delete(category);         unitOfWork.Commit();         var categories = categoryRepository.All();         return PartialView("CategoryList", categories);       }        } Creating Views in Razor Now we are going to create views in Razor for our ASP.NET MVC 3 application.  Let’s create a partial view CategoryList.cshtml for listing category information and providing link for Edit and Delete operations. CategoryList.cshtml @using MyFinance.Helpers; @using MyFinance.Domain; @model IEnumerable<Category>      <table>         <tr>         <th>Actions</th>         <th>Name</th>          <th>Description</th>         </tr>     @foreach (var item in Model) {             <tr>             <td>                 @Html.ActionLink("Edit", "Edit",new { id = item.CategoryId })                 @Ajax.ActionLink("Delete", "Delete", new { id = item.CategoryId }, new AjaxOptions { Confirm = "Delete Expense?", HttpMethod = "Post", UpdateTargetId = "divCategoryList" })                           </td>             <td>                 @item.Name             </td>             <td>                 @item.Description             </td>         </tr>         }       </table>     <p>         @Html.ActionLink("Create New", "Create")     </p> The delete link is providing Ajax functionality using the Ajax.ActionLink. This will call an Ajax request for Delete action method in the CategoryCotroller class. In the Delete action method, it will return Partial View CategoryList after deleting the record. We are using CategoryList view for the Ajax functionality and also for Index view using for displaying list of category information. Let’s create Index view using partial view CategoryList  Index.chtml @model IEnumerable<MyFinance.Domain.Category> @{     ViewBag.Title = "Index"; }    <h2>Category List</h2>    <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>    <div id="divCategoryList">               @Html.Partial("CategoryList", Model) </div> We can call the partial views using Html.Partial helper method. Now we are going to create View pages for insert and update functionality for the Category. Both view pages are sharing common user interface for entering the category information. So I want to create an EditorTemplate for the Category information. We have to create the EditorTemplate with the same name of entity object so that we can refer it on view pages using @Html.EditorFor(model => model) . So let’s create template with name Category. Category.cshtml @model MyFinance.Domain.Category <div class="editor-label"> @Html.LabelFor(model => model.Name) </div> <div class="editor-field"> @Html.EditorFor(model => model.Name) @Html.ValidationMessageFor(model => model.Name) </div> <div class="editor-label"> @Html.LabelFor(model => model.Description) </div> <div class="editor-field"> @Html.EditorFor(model => model.Description) @Html.ValidationMessageFor(model => model.Description) </div> Let’s create view page for insert Category information @model MyFinance.Domain.Category   @{     ViewBag.Title = "Save"; }   <h2>Create</h2>   <script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>   @using (Html.BeginForm()) {     @Html.ValidationSummary(true)     <fieldset>         <legend>Category</legend>                @Html.EditorFor(model => model)               <p>             <input type="submit" value="Create" />         </p>     </fieldset> }   <div>     @Html.ActionLink("Back to List", "Index") </div> ViewStart file In Razor views, we can add a file named _viewstart.cshtml in the views directory  and this will be shared among the all views with in the Views directory. The below code in the _viewstart.cshtml, sets the Layout page for every Views in the Views folder.     @{     Layout = "~/Views/Shared/_Layout.cshtml"; } Tomorrow, we will cotinue the second part of this article. :)

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  • CodePlex Daily Summary for Tuesday, February 23, 2010

    CodePlex Daily Summary for Tuesday, February 23, 2010New Projects.NET Beginners: This project is a summary of project for first time developer and .net beginners. the aim is to provide tools and libraries to get startet with dev...A simple ASP.NET Currency / Money TextBox User Control: A ASP.NET TextBox control used with AJAX maskeditextender makes it possible to enter numbers but it's not very intuitive to use. CurrencyTextBox co...Academiki: Academik The project aims to be a university social network with content sharing and intellectual property. Academik makes it easier for students t...Acessando Campos com XPath Expression: Esse é um exemplo de como usar Xpath Expression na orchestration do Biztalk 2006. O Artigo do exemplo esta em www.biztalkbrasil.blogspot.comAg.CommandManager: A command manager implementation for Silverlights. Supports commanding to more or less any event using the ICommand interfaceApunta Notas: Apunta notas is just a note taking program that I created to learn WPF. Now you can write everything you need to remember or tell somebody. Or you...AzureKit: AzureKit provides a more direct approach to Azure's Table Service, which takes more advantage of the NoSQL nature of the storage medium.CRM 4.0 Distribute Workflow Activity: This plugin allows to execute a workflow for each entity that has a 1:N or N:N relationship to a given entity. For example: execute a workflow for...Dbg Shell: Dbg Shell replaces WinDbg for debugging dumps. All standard Dbg commands are supported. You can also write scripts in .Net assemblies to automated ...Egg Timer: Egg Timer is a very simple Windows Form application for setting short time-frame alarms.Enterprise Library Extensions: Extensions for the Microsoft Enterprise Library applications blocks which makes programming applications even easier.Event Calendar 2.0 Data Extractor: Really simple app to recover event calendar 2.0 information from iGoogle settings files and turn them into CSV format info for importing to other c...iTwiit: Silverlight Twitter Clientlibtym: Have your complete movie collection at a glance to manage all your movie files very comfortably!Metabolite Enterprise Libraries for EPiServer CMS using Page Type Builder: The Metabolite Enterprise libraries are a set of C# Class Libraries developed for use with EPiServer 5 R2 SP2+ projects using PageTypeBuilder. They...Metro UX: Metro UXMTI: -Personal Expense Tracker: Personal Expense Tracker helps you track your expenses. I tried to find simple win forms expense tracker but found none interesting, so i made one...rarouš: repository for rarouš.weblog articlesSacDotNetUG: SacDotNetUG is an ASP.NET MVC 2 Web application intended for the Sacramento .NET user group. This project servers 2 main goals: to promote the adop...ShellLight: ShellLight is essentially a graphical shell for Silverlight applications that enables a quick auto-complete launcher for features in your solution.Sina Weibo(Microblog): sina weibo .NET libraries and applications.Terrain Independant Navigating Automaton v2.0: This is where members of the Robot Design Team from Stony Brook University come together and work on our unique TINA. This project is for a self-go...Url Rewrite.Net: Url Rewrite.Net is an open-source SEO project which contains Custom Http Module example and Custom Configrutaion Module.It is developed in C#.NET 2...WebPart and WebService Currency Converter: This is only a sample code how to get data from yahoo finance and how to implementing on Sharepoint WebPart or WebServices. This code it is freely...WPF AutoComplete TextBox Control: A AutoComplete TextBox Control written in WPF, Looks like the system built-in auto-completion(SHAutoComplete).ZWaveAPI: This project is aim to create an open class library on ZWave. It is based on article from digiWave.dk New Releases.NET Beginners: MathLab Visual Studio Project Template: First preview to a mathlab beginners library..NET Beginners: Turtle Visual Studio Project Template: The turtle engine is a very simlpe turtle which runs over a beach and leaves a track.A simple ASP.NET Currency / Money TextBox User Control: CurrencyTextBox Source v1.0: Source code with a test project.A simple ASP.NET Currency / Money TextBox User Control: CurrencyTextBox.dll: The User Control for use in projects.Acessando Campos com XPath Expression: Source Code SampleXPathExpression: O Source code contem o Projeto em Visual Studio 2005.Actipro WPF Controls Contrib: v2009.2 build 515: Minor tweaks and updated to target Actipro WPF Studio 2009.2 (build 515).Analysis Management System: 1.0.0.1 Update: Fix - Issue 4004 Nieuw - Beschikbare klanten kunnen nu bekeken worden via Extra/Aanvragers (Ctrl R)Apunta Notas: Apunta Notas 1.0 Release Candidate: There is the Release Candidate of Apunta Notas.ARSoft.Tools.Net - C# DNS and SPF Library: 1.2.0: Added asynchronous operations for DNS client.CRM 4.0 Distribute Workflow Activity: Beta: Initial release. Complete functionality, limited testing.Dbg Shell: First Public Release: First ReleaseDnDns and PocketDnDns - A .NET DNS Client Resolver Library: DnDns Library Release 2: A DNS protocol library written completely in managed code (C#). Supports common DNS records types like A, CNAME, MX, SRV, and more. Works on Window...Egg Timer: Egg Timer v1.0: Pretty simple application. Set the time directly or use the 5 minute and 1 hour increment/decrement buttons.EnhSim: EnhSim v1.9.7.2 BETA: 1.9.7.2 BETAImportant!: This beta version includes the changes to the Flame shock damage-over-time component which are currently on the PTR. Downlo...EnhSim: EnhSim v1.9.7.3 BETA: Important!: This beta version includes the changes to the Flame shock damage-over-time component which are currently on the PTR. Download 1.9.7.1 f...Esendex SMS SDK and Downloads for Microsoft.NET languages: Esendex .NET SDK v0.4.0: Features Messaging Service: Send a single SMS message and multiple SMS messages. Send a single Voice Message and multiple Voice Messages. Send...Event Calendar 2.0 Data Extractor: V1.0: First ever build of extractorExcelDna: ExcelDna Version 0.22: An important bugfix release that fixes a critical bug in the MultiThreaded marshaling support (under Excel 2007).InfoService: InfoService v1.5 Beta 8: InfoService Beta Release Please note this is a BETA. It should be stable, but i can't gurantee that! So use it on your own risk. Please read Plugi...Krypton Palette Selectors: Release 1.2: Adds the new KryptonPaletteContextMenu and refactors the KryptonPaletteDropButton to use it.kuuy static system: kss_v1.0beta: kuuy static sytem 1.0 beta editionlibtym: libtym: First public release version. Full functionality, tested. Please notify about bugs.mojoPortal: 2.3.3.9: see release notes on mojoPortal.com http://www.mojoportal.com/mojoportal-2339-released.aspx This release makes it easy to use Artisteer html templa...Net Tool: v1.01: User interface has been changedOpen NFSe: Open NFSe 0.1 (Salvador): Open NFSe 0.1 (Salvador)Paint.NET PSD Plugin: 1.0.7: Further substantial improvements in speed of both loading and saving. In particular, loading is about 5x as fast as in version 1.0.6. Saving is ...Project Starlight: 2.0: Release 2.0 final Changes: -Numerous stability fixes -Firefox 3.5 support -Safari 64 bit support (Snow Leopard) Mac and Windows Binaries are avai...RoTwee: RoTwee 5.0.0.1: This version fix for 16620Secure Data: Secure Data 2010.02.22.01: This version has been rewritten and contains many enhancements and I encourage anyone interested to download the source code and work through the Q...TreeSizeNet: TreeSizeNet 0.10.1: - Complete Redesign - Improved Stability - Improved Performance - PieChart for directory contentUrl Rewrite.Net: Beta V0.1 Release: Includes : -Custom Http Module -Custom Configuration Section Module ( in web.config) -Rewriting ModuleVCC: Latest build, v2.1.30222.0: Automatic drop of latest buildWebPart and WebService Currency Converter: CurrencyConverter.zip: CurrencyConverter.zip Have 3 Project on this files: 1. Library Project 2. Load Library Project Using Web Services 3. Load Library Project Using We...WSUS Smart Approve: 1.0.0.2: Fix: 25903ZuneConsole: ZuneConsole: Console GUI for the Zune Customs library, which should make everything work. This is what you should download.ZuneConsole: ZuneConsole How-To Manual: A quick (only 9 pages lol) tutorial on how to add custom artist info to your Zune.Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)ASP.NETDotNetNuke® Community EditionImage Resizer Powertoy Clone for WindowsMicrosoft SQL Server Community & SamplesMost Active ProjectsDinnerNow.netRawrBlogEngine.NETNB_Store - Free DotNetNuke Ecommerce Catalog ModuleSharpyInfoServicejQuery Library for SharePoint Web ServicesPHPExcelpatterns & practices – Enterprise LibrarySharePoint Contrib

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  • Does using GCC specific builtins qualify as incorporation within a project?

    - by DavidJFelix
    I understand that linking to a program licensed under the GPL requires that you release the source of your program under the GPL as well, while the LGPL does not require this. The terminology of the (L)GPL is very clear about this. #include "gpl_program.h" means you'd have to license GPL, because you're linking to GPL licensed code. And #include "lgpl_program.h" means you're free to license however you want, so that it doesn't explicitly prohibit linking to LGPL source. Now, my question about what isn't clear is: [begin question] GCC is GPL licensed, compiling with GCC, does not constitute "integration" into your program, as the GPL puts it; does using builtin functions (which are specific to GCC) constitute "incorporation" even though you haven't explicitly linked to this GPL licensed code? My intuition tells me that this isn't the intention, but legality isn't always intuitive. I'm not actually worried, but I'm curious if this could be considered the case. [end question] [begin aside] The reason for my equivocation is that GCC builtins like __builtin_clzl() or __builtin_expect() are an API technically and could be implemented in another way. For example, many builtins were replicated by LLVM and the argument could be made that it's not implementation specific to GCC. However, many builtins have no parallel and when compiled will link GPL licensed code in GCC and will not compile on other compilers. If you make the argument here that the API could be replicated by another compiler, couldn't you make that identical claim about any program you link to, so long as you don't distribute that source? I understand that I'm being a legal snake about this, but it strikes me as odd that the GPL isn't more specific. I don't see this as a reasonable ploy for proprietary software creators to bypass the GPL, as they'd have to bundle the GPL software to make it work, removing their plausible deniability. However, isn't it possible that if builtins don't constitute linking, then open source proponents who oppose the GPL could simply write a BSD/MIT/Apache/Apple licensed product that links to a GPL'd program and claim that they intend to write a non-GPL interface that is identical to the GPL one, preserving their BSD license until it's actually compiled? [end aside] Sorry for the aside, I didn't think many people would follow why I care about this if I'm not facing any legal trouble or implications. Don't worry too much about the hypotheticals there, I'm just extrapolating what either answer to my actual question could imply.

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  • How do you keep code with continuations/callbacks readable?

    - by Heinzi
    Summary: Are there some well-established best-practice patterns that I can follow to keep my code readable in spite of using asynchronous code and callbacks? I'm using a JavaScript library that does a lot of stuff asynchronously and heavily relies on callbacks. It seems that writing a simple "load A, load B, ..." method becomes quite complicated and hard to follow using this pattern. Let me give a (contrived) example. Let's say I want to load a bunch of images (asynchronously) from a remote web server. In C#/async, I'd write something like this: disableStartButton(); foreach (myData in myRepository) { var result = await LoadImageAsync("http://my/server/GetImage?" + myData.Id); if (result.Success) { myData.Image = result.Data; } else { write("error loading Image " + myData.Id); return; } } write("success"); enableStartButton(); The code layout follows the "flow of events": First, the start button is disabled, then the images are loaded (await ensures that the UI stays responsive) and then the start button is enabled again. In JavaScript, using callbacks, I came up with this: disableStartButton(); var count = myRepository.length; function loadImage(i) { if (i >= count) { write("success"); enableStartButton(); return; } myData = myRepository[i]; LoadImageAsync("http://my/server/GetImage?" + myData.Id, function(success, data) { if (success) { myData.Image = data; } else { write("error loading image " + myData.Id); return; } loadImage(i+1); } ); } loadImage(0); I think the drawbacks are obvious: I had to rework the loop into a recursive call, the code that's supposed to be executed in the end is somewhere in the middle of the function, the code starting the download (loadImage(0)) is at the very bottom, and it's generally much harder to read and follow. It's ugly and I don't like it. I'm sure that I'm not the first one to encounter this problem, so my question is: Are there some well-established best-practice patterns that I can follow to keep my code readable in spite of using asynchronous code and callbacks?

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  • Windows Azure ASP.NET MVC 2 Role with Silverlight

    - by GeekAgilistMercenary
    I was working through some scenarios recently with Azure and Silverlight.  I immediately decided a quick walk through for setting up a Silverlight Application running in an ASP.NET MVC 2 Application would be a cool project. This walk through I have Visual Studio 2010, Silverlight 4, and the Azure SDK all installed.  If you need to download any of those go get em? now. Launch Visual Studio 2010 and start a new project.  Click on the section for cloud templates as shown below. After you name the project, the dialog for what type of Windows Azure Cloud Service Role will display.  I selected ASP.NET MVC 2 Web Role, which adds the MvcWebRole1 Project to the Cloud Service Solution. Since I selected the ASP.NET MVC 2 Project type, it immediately prompts for a unit test project.  Because I just want to get everything running first, I will probably be unit testing the Silverlight and just using the MVC Project as a host for the Silverlight for now, and because I would prefer to just add the unit test project later, I am going to select no here. Once you've created the ASP.NET MVC 2 project to host the Silverlight, then create another new project.  Select the Silverlight section under the Installed Templates in the Add New Project dialog.  Then select Silverlight Application. The next dialog that comes up will inquire about using the existing ASP.NET MVC Application I just created, which I do want it to use that so I leave it checked.  The options section however I do not want to check RIA Web Services, do not want a test page added to the project, and I want Silverlight debugging enabled so I leave that checked.  Once those options are appropriately set, just click on OK and the Silverlight Project will be added to the overall solution. The next steps now are to get the Silverlight object appropriately embedded in the web page.  First open up the Site.Master file in the ASP.NET MVC 2 Project located under the Veiws/Shared/ location.  After you open the file review the content of the <header></header> section.  In that section add another <contentplaceholder></contentplaceholder> tag as shown in the code snippet below. <head runat="server"> <title> <asp:ContentPlaceHolder ID="TitleContent" runat="server" /> </title> <link href="../../Content/Site.css" rel="stylesheet" type="text/css" /> <asp:ContentPlaceHolder ID="HeaderContent" runat="server" /> </head> I usually put it toward the bottom of the header section.  It just seems the <title></title> should be on the top of the section and I like to keep it that way. Now open up the Index.aspx page under the ASP.NET MVC 2 Project located in the Views/Home/ directory.  When you open up that file add a <asp:Content><asp:Content> tag as shown in the next snippet. <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Home Page </asp:Content>   <asp:Content ID=headerContent ContentPlaceHolderID=HeaderContent runat=server>   </asp:Content>   <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2><%= Html.Encode(ViewData["Message"]) %></h2> <p> To learn more about ASP.NET MVC visit <a href="http://asp.net/mvc" title="ASP.NET MVC Website">http://asp.net/mvc</a>. </p> </asp:Content> In that center tag, I am now going to add what is needed to appropriately embed the Silverlight object into the page.  The first thing I needed is a reference to the Silverlight.js file. <script type="text/javascript" src="Silverlight.js"></script> After that comes a bit of nitty gritty Javascript.  I create another tag (and for those in the know, this is exactly like the generated code that is dumped into the *.html page generated with any Silverlight Project if you select to "add a test page that references the application".  The complete Javascript is below. function onSilverlightError(sender, args) { var appSource = ""; if (sender != null && sender != 0) { appSource = sender.getHost().Source; }   var errorType = args.ErrorType; var iErrorCode = args.ErrorCode;   if (errorType == "ImageError" || errorType == "MediaError") { return; }   var errMsg = "Unhandled Error in Silverlight Application " + appSource + "\n";   errMsg += "Code: " + iErrorCode + " \n"; errMsg += "Category: " + errorType + " \n"; errMsg += "Message: " + args.ErrorMessage + " \n";   if (errorType == "ParserError") { errMsg += "File: " + args.xamlFile + " \n"; errMsg += "Line: " + args.lineNumber + " \n"; errMsg += "Position: " + args.charPosition + " \n"; } else if (errorType == "RuntimeError") { if (args.lineNumber != 0) { errMsg += "Line: " + args.lineNumber + " \n"; errMsg += "Position: " + args.charPosition + " \n"; } errMsg += "MethodName: " + args.methodName + " \n"; }   throw new Error(errMsg); } I literally, since it seems to work fine, just use what is populated in the automatically generated page.  After getting the appropriate Javascript into place I put the actual Silverlight Object Embed code into the HTML itself.  Just so I know the positioning and for final verification when running the application I insert the embed code just below the Index.aspx page message.  As shown below. <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2> <%= Html.Encode(ViewData["Message"]) %></h2> <p> To learn more about ASP.NET MVC visit <a href="http://asp.net/mvc" title="ASP.NET MVC Website"> http://asp.net/mvc</a>. </p> <div id="silverlightControlHost"> <object data="data:application/x-silverlight-2," type="application/x-silverlight-2" width="100%" height="100%"> <param name="source" value="ClientBin/CloudySilverlight.xap" /> <param name="onError" value="onSilverlightError" /> <param name="background" value="white" /> <param name="minRuntimeVersion" value="4.0.50401.0" /> <param name="autoUpgrade" value="true" /> <a href="http://go.microsoft.com/fwlink/?LinkID=149156&v=4.0.50401.0" style="text-decoration: none"> <img src="http://go.microsoft.com/fwlink/?LinkId=161376" alt="Get Microsoft Silverlight" style="border-style: none" /> </a> </object> <iframe id="_sl_historyFrame" style="visibility: hidden; height: 0px; width: 0px; border: 0px"></iframe> </div> </asp:Content> I then open up the Silverlight Project MainPage.xaml.  Just to make it visibly obvious that the Silverlight Application is running in the page, I added a button as shown below. <UserControl x:Class="CloudySilverlight.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignHeight="300" d:DesignWidth="400">   <Grid x:Name="LayoutRoot" Background="White"> <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="48,40,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" /> </Grid> </UserControl> Just for kicks, I added a message box that would popup, just to show executing functionality also. private void button1_Click(object sender, RoutedEventArgs e) { MessageBox.Show("It runs in the cloud!"); } I then executed the ASP.NET MVC 2 and could see the Silverlight Application in page.  With a quick click of the button, I got a message box.  Success! Now the next step is getting the ASP.NET MVC 2 Project and Silverlight published to the cloud.  As of Visual Studio 2010, Silverlight 4, and the latest Azure SDK, this is actually a ridiculously easy process. Navigate to the Azure Cloud Services web site. Once that is open go back in Visual Studio and right click on the cloud project and select publish. This will publish two files into a directory.  Copy that directory so you can easily paste it into the Azure Cloud Services web site.  You'll have to click on the application role in the cloud (I will have another blog entry soon about where, how, and best practices in the cloud). In the text boxes shown, select the application package file and the configuration file and place them in the appropriate text boxes.  This is the part were it comes in handy to have copied the directory path of the file location.  That way when you click on browser you can just paste that in, then hit enter.  The two files will be listed and you can select the appropriate file. Once that is done, name the service deployment.  Then click on publish.  After a minute or so you will see the following screen. Now click on run.  Once the MvcWebRole1 goes green (the little light symbol to the left of the status) click on the Web Site URL.  Be patient during this process too, it could take a minute or two.  The Silverlight application should again come up just like you ran it on your local machine. Once staging is up and running, click on the circular icon with two arrows to move staging to production.  Once you are done make sure the green light is again go for the production deploy, then click on the Web Site URL to verify the site is working.  At this point I had a successful development, staging, and production deployment. Thanks for reading, hope this was helpful.  I have more Windows Azure and other cloud related material coming, so stay tuned. Original Entry

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  • How to redesign the UI of a large project?

    - by jem88
    I'm currently working at a quite big Android project (a social network, you can see it here if is useful to answer the question). We decided to restyle the whole app, changing all the UI design. The code I actually have is complex, there are many controllers, and it's a little messy too. Is it "better" in terms of time and code cleanliness to take one controller per time, and rewrite it entirely, or to modify one controller per time? The layout change entirely anyway, so for that I know I've to restart from scratch. Maybe it could seem a stupid question, but with the "time" variable I really can't see the best way.

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  • XSLT1.0: remove duplicates combined with an xsl:key

    - by Jannibal
    I have the following piece of XML: <research> <research.record> <research.record_number>1</research.record_number> <research.type> <value lang="en-US">some research type</value> </research.type> <research.type> <value lang="en-US">some other type of research</value> </research.type> <project.record> <priref>101</priref> <project.type> <value lang="en-US">some type of project</value> </project.type> </project.record> </research.record> </research> <research> <research.record> <research.record_number>2</research.record_number> <research.type> <value lang="en-US">some other type of research</value> </research.type> <research.type> <value lang="en-US">a third type of research</value> </research.type> <project.record> <priref>101</priref> <project.type> <value lang="en-US">some type of project</value> </project.type> </project.record> </research.record> </research> <research> <research.record> <research.record_number>3</research.record_number> <research.type> <value lang="en-US">some other type of research</value> </research.type> <research.type> <value lang="en-US">a fourth type</value> </research.type> <project.record> <priref>201</priref> <project.type> <value lang="en-US">some other type of project</value> </project.type> </project.record> </research.record> </research> <research> ... etc ... With XSLT 1.0 I transform this XML into a list of unique project records by using xsl:key. So far, so good... The problem is: I also want to show unique research types for each unique project record. My wanted output would be: project.record 101: some research type, some other type of research, a third type of research project.record 201: some other type of research, a fourth type Hope someone can help me out with the right XSLT/XPATH. (Can only use XSLT1.0)

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  • WPF: Animating TranslateTransform from code

    - by ghostskunks
    I have a WPF canvas on which I'm dynamically creating objects from code. These objects are being transformed by setting the RenderTransform property, and an animation needs to be applied one of those transforms. Currently, I can't get properties of any transform to animate (although no exception gets raised and the animation appears to run - the completed event gets raised). In addition, if the animation system is stressed, sometimes the Storyboard.Completed event is never raised. All the examples I've come accross animate the transforms from XAML. MSDN documentation suggests that the x:Name property of a transform must be set for it to be animatable, but I haven't found a working way to set it from code. Any ideas? Here's the full code listing that reproduces the problem: using System; using System.Diagnostics; using System.Windows; using System.Windows.Controls; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; namespace AnimationCompletedTest { /// <summary> /// Interaction logic for MainWindow.xaml /// </summary> public partial class MainWindow : Window { Canvas panel; public MainWindow() { InitializeComponent(); MouseDown += DoDynamicAnimation; Content = panel = new Canvas(); } void DoDynamicAnimation(object sender, MouseButtonEventArgs args) { for (int i = 0; i < 12; ++i) { var e = new Ellipse { Width = 16, Height = 16, Fill = SystemColors.HighlightBrush }; Canvas.SetLeft(e, Mouse.GetPosition(this).X); Canvas.SetTop(e, Mouse.GetPosition(this).Y); var tg = new TransformGroup(); var translation = new TranslateTransform(30, 0); tg.Children.Add(translation); tg.Children.Add(new RotateTransform(i * 30)); e.RenderTransform = tg; panel.Children.Add(e); var s = new Storyboard(); Storyboard.SetTarget(s, translation); Storyboard.SetTargetProperty(s, new PropertyPath(TranslateTransform.XProperty)); s.Children.Add( new DoubleAnimation(3, 100, new Duration(new TimeSpan(0, 0, 0, 1, 0))) { EasingFunction = new PowerEase {EasingMode = EasingMode.EaseOut} }); s.Completed += (sndr, evtArgs) => { Debug.WriteLine("Animation {0} completed {1}", s.GetHashCode(), Stopwatch.GetTimestamp()); panel.Children.Remove(e); }; Debug.WriteLine("Animation {0} started {1}", s.GetHashCode(), Stopwatch.GetTimestamp()); s.Begin(); } } [STAThread] public static void Main() { var app = new Application(); app.Run(new MainWindow()); } } }

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  • Command /usr/bin/ codesign failed with exit code 1

    - by sarmenhba
    i was playing with the keychain certificates i wanted to remove them all and do it all again so that i learn how to do it. i have a simple app it worked perfectly before i started playing with the certificates so the code is fine. when i tried to compile my app to sent it to my iphone device it would give the error you see in the title. i looked at the log and here is what i see: Build Untitled of project Untitled with configuration Debug CodeSign build/Debug-iphoneos/Untitled.app cd /Users/sarmenhb/Desktop/myapp/Untitled setenv IGNORE_CODESIGN_ALLOCATE_RADAR_7181968 /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate setenv PATH "/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /usr/bin/codesign -f -s "iPhone Developer: sarm bo (2ZDTN5FTAL)" --resource-rules=/Users/sarmenhb/Desktop/myapp/Untitled/build/Debug-iphoneos/Untitled.app/ResourceRules.plist --entitlements /Users/sarmenhb/Desktop/myapp/Untitled/build/Untitled.build/Debug-iphoneos/Untitled.build/Untitled.xcent /Users/sarmenhb/Desktop/myapp/Untitled/build/Debug-iphoneos/Untitled.app iPhone Developer: sarm bo (2ZDTN5FTAL): no identity found Command /usr/bin/codesign failed with exit code 1 how do i fix this?

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  • WPF Auto height in code

    - by Karim
    How could I set the value of the Height property of a WPF control in C# code to "Auto"? <Grid.RowDefinitions> <RowDefinition /> <RowDefinition Height="Auto" /> <RowDefinition /> <RowDefinition Height="Auto" /> <RowDefinition /> <RowDefinition Height="Auto" /> <RowDefinition /> <RowDefinition Height="Auto" /> <RowDefinition /> </Grid.RowDefinitions> I want to reproduce this behavior in the code behind. Any ideas? Thanks in advance

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  • Extending Code Igniter functions to external PHP Scripts

    - by Fábio Antunes
    Hello everybody. I'm doing a small web app, which uses CKeditor for user input, and CKfinder for file management (images/flash). Those who know CKFinder, algo know that the config file for CKFinder as a function named CheckAuthentication() that returns false or true, giving or not permissions to use CKFinder. This is were a Custom PHP Code checks if the user as authorization to access CKFinder or not. Well for my app I'm using Code Igniter, and of course I've created a model were i handle everything about User Permissions, Loggin, Session Cookies, etc. And i also have a function witch its propose is just to check if the user is Logged in. So I would like to know if someone knows a way that i can call the function isLoggedIn() inside the model security from inside the function CheckAuthentication() in CKFinder config file. Thanks in advance.

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  • HttpWebRequest gives a SocketException with error code 10050

    - by Shodan Is Alive
    Hi everybody I'm pulling my hairs off since two days now because I'm trying to download an image from a website using HttpWebRequest. When I call the method "GetResponse" of that class, I get the WebException "Unable to connect to the remote server.". The inner exception is "A socket operation encountered a dead network 193.63.75.26:80". After some trial and error, I created a new website to test only that portion of code and it works. I thought it could be the proxy settings so I changed settings for both of the websites according to some clues I found googling around but the situation remains the same. Basically the code I execute is this xHttpReq = System.Net.HttpWebRequest.Create(New Uri(uri)) xHttpReq.Timeout = 30000 xHttpResp = xHttpReq.GetResponse() '<-- here's where I get the error xRespStream = xHttpResp.GetResponseStream I can't figure out what I'm doing wrong... can someone help me?

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  • Creating a Silverlight DataTemplate in code

    - by Nick R
    How do I create a silverlight data template in code? I've seen plenty of examples for WPF, but nothing for Silverlight. Edit: Here's the code I'm now using this for, based on the answer from Santiago below. public DataTemplate Create(Type type) { return (DataTemplate)XamlReader.Load( @"<DataTemplate xmlns=""http://schemas.microsoft.com/client/2007""> <" + type.Name + @" Text=""{Binding " + ShowColumn + @"}""/> </DataTemplate>" ); } This works really nicely and allows me to change the binding on the fly.

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