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  • Structuremap Stackoverflow Exception

    - by Jason Young
    I keep getting a stackoverflow exception when I call "GetInstance" (the last line). All, yes ALL of my types implement ITracker. MultiTracker has a constructor with a single parameter, which is an array of ITracker's. It seems like StructureMap is ignoring the fact that I told it that MultiTracker is the default class I want when requesting the type ITracker. I just can't get it to work. Any thoughts? Container = new Container(x => { //Multitracker takes ITracker[] in its constructor x.ForRequestedType<MultiTracker>().TheDefault.Is.OfConcreteType<MultiTracker>().TheArrayOf<ITracker>().Contains(z => { z.OfConcreteType<ConcreteType1>(); //ConcreteType1 : ITracker z.OfConcreteType<ConcreteType2>(); //ConcreteType2 : ITracker }); x.ForRequestedType<ITracker>().TheDefault.Is.OfConcreteType<MultiTracker>(); }); //Run a test - this explodes Container.GetInstance<ITracker>();

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  • Design - Where should objects be registered when using Windsor

    - by Fredrik Jansson
    I will have the following components in my application DataAccess DataAccess.Test Business Business.Test Application I was hoping to use Castle Windsor as IoC to glue the layers together but I am bit uncertain about the design of the gluing. My question is who should be responsible for registering the objects into Windsor? I have a couple of ideas; Each layer can register its own objects. To test the BL, the test bench could register mock classes for the DAL. Each layer can register the object of its dependencies, e.g. the business layer registers the components of the data access layer. To test the BL, the test bench would have to unload the "real" DAL object and register the mock objects. The application (or test app) registers all objects of the dependencies. Can someone help me with some ideas and pros/cons with the different paths? Links to example projects utilizing Castle Windsor in this way would be very helpful.

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  • Autofac in web applications, where should I store the container for easy access

    - by michielvoo
    I'm still pretty new to using Autofac and one thing I miss in the documentation and examples is how to make it easy to get to the configured container from different places in a web application. I know I can use the Autofac controller factory to automatically resolve constructor injected dependencies for controllers, but how about the other stuff you might need to resolve that is not injected yet. Is there an obvious pattern I am not aware of for this? Thank you!

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  • Dependency Injection: How to maintain multiple configurations?

    - by Malax
    Hi StackOverflow, Lets assume we've build a system with a DI framework which is working quite fine. This system currently uses JMS to "talk" with other systems not maintained by us. The majority of our customers like the JMS approach and uses it according to our specification. The component which does all the messaging is injected with Spring into the rest of the application. Now we got the case that one customer cannot implement the JMS solution and want to use another messaging technology. Thats not a problem because we can simply implement a messaging service using this technology and inject it in the rest of the application. But how are we supposed to handle the deployment and maintenance of the configuration? Since the application uses Spring i could imagine to check in all the configurations i have for this application and the system administrator could start the application and passing the name of the DI XML file to specify which configuration should be loaded. But... it just don't feel right. Are there any solutions for such cases available? What are the best-practices you use? I could even imagine more complex scenarios which do not contain only one service substitution... Thanks a lot!

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  • wpf error template - red box still visible on collapse of an expander

    - by Andy Clarke
    Hi, I'm doing some validation on the DataSource of TextBox that's within an Expander and have found that once a validation error has been triggered, if I collapse the Expander, the red box stays where the TextBox would have been. <Expander Header="Blah Blah Blah"> <TextBox Name="TextBox" Validation.ErrorTemplate="{DynamicResource TextBoxErrorTemplate}" Text="{Binding Path=Blah, UpdateSourceTrigger=PropertyChanged, ValidatesOnDataErrors=True}" /> </Expander> I've tried to get round this by binding the visibility of the Error Template to the Expander, however I think there's something wrong with the binding. <local:NotVisibleConverter x:Key="NotVisibleConverter" /> <ControlTemplate x:Key="TextBoxErrorTemplate"> <DockPanel> <Border BorderBrush="Red" BorderThickness="2" Visibility="{Binding Path=IsExpanded, Converter={StaticResource NotVisibleConverter}, RelativeSource={RelativeSource AncestorType=Expander}}" > <AdornedElementPlaceholder Name="MyAdorner" /> </Border> </DockPanel> <ControlTemplate.Triggers> <Trigger Property="Validation.HasError" Value="true"> <Setter Property="ToolTip" Value="{Binding RelativeSource={RelativeSource Self}, Path=(Validation.Errors)[0].ErrorContent}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> I guess I've gone wrong with my binding, can someone put me back on track please? Alternatively does anyone know another solution to the ErrorTemplate still being visible on the collapse of an Expander?

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  • Opening web page within existing web page

    - by Bob Jones
    I need to be able to load web pages from different sites within a page on my site. I am using C# .NET and master pages. Within the content page, I want to be able to load an arbitrary page and display it without any of the browser controls appearing - just the page content.

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  • IoC, AOP and more

    - by JMSA
    What is an IoC container? What is an IoC/DI framework? Why do we need a framework for IoC/DI? Is there any relationship between IoC/DI and AOP? What is Spring.net/ninject with respect to IoC and AOP?

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  • How to implement a good system for login/out into a webapp

    - by Brandon Wang
    I am one of the developers at PassPad, a secure password generator and username storage system. We're still working on it, but I have a few questions on the best way to implement a secure login/out system. Right now, what we plan on doing is to have the login system save a cookie with the username and a session key, and that's all that serves as authentication. The server verifies the two to match. Upon login/out a new key is created. This is a security-related webapp and while we don't actually store any information that might make the user queasy, because it is security-oriented it makes it a necessity for us to at least appear secure in a way that the user would be happy with. Is there a better way to implement a login/out system in PHP? Preferably it won't take too much coding time or server resources. Is there anything else I need to implement, like brute-force protection, etc? How would I go about that?

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  • Windsor Container: How to specify a public property should not be filled by the container?

    - by George Mauer
    When Instantiating a class, Windsor by default treats all public properties of the class as optional dependencies and tries to satisfy them. In my case, this creates a rather complicated circular dependency which causes my application to hang. How can I explicitly tell Castle Windsor that it should not be trying to satisfy a public property? I assume there must be an attribute to that extent. I can't find it however so please let me know the appropriate namespace/assembly. If there is any way to do this without attributes (such as Xml Configuration or configuration via code) that would be preferable since the specific library where this is happening has to date not needed a dependency on castle.

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  • wpf c# status window update

    - by phm
    Hello I am trying to create a status window which content(textbox) should change in a lengthy operation. This status window is called and updated from the main application. Unfortunately, the content is updated only at the finish of the operation. I am using VS2008, C# and WPF. Thank you.

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  • [StructureMap] Xml configuration or Configuration through code?

    - by Amith George
    I personally like the option to configure StructureMap from C# code. From what I understand, one of the advantages of DI, is that we can easily swap in a new concrete instance. But, if the configuration is defined in code, then the concrete instances are hardcoded in the dll. So, practically, its as good as having hard coded the dependencies, right? I know, during testing it makes life easier... My point is, wouldnt it be better to use xml configuration instead? you want to plugin a new concrete instance? simply have your installer overwrite the structuremap.config file with the new one. So, what is the preferred way to configure StructureMap? Extra: Am forced to use C# configuration for the time being because I dont know how to pass the connection string to instance. I can write the connectionstring in the config file, but i would like to reuse the connectionstring defined in app.config.

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  • How to best configure a central repository/multiple central repositories for Mercurial?

    - by Mario
    I am new to Mercurial and trying to figure out if it could replace SVN. Everyone I work with has used SVN, CVS and VSS (shiver), so this could be quite a large change. I have been very interested after reading about its merge and branch capability, but have a few reservations. We are currently on SVN, and have one central repository. From my reading, it seems as though there is no ONE central repository for all projects when using Mercurial. NOTE: We consider each project a separate logical set of code, or a Visual Studio Solution. It runs on its own. We have around 60 separate projects in our one central SVN repository. After reading about Mercurial it seems to me that I have to create 60 separate central repositories for each one of these projects on the server. QUESTION #1: Should I create a single repository for each project? If yes, then I am worried about configuring and hosting 60 separate central Mercurial servers. I started thinking I could configure one file, but it seems as if each repository must be individually configured using the “C:...\MyRepository.hg\hgrc” file (Windows install). It also seems as I have to run 60 servers (hg serve), I would assume on different ports. QUESTION #2: If the answer to question 1 is yes, there should be a single central repository for each project, then how have people managed many multiple repositories? Finally, I haven’t looked into moving all history and changes from one SVN repository to a bunch of separate Mercurial repositories, but would appreciate any comments from someone who has done this (or if it is even possible).

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  • Castel Windsor XML configuration for WCF proxy using WCF Integration Facility

    - by andreyg
    Hi everybody! Currently, we use programming registration of WCF proxies in Windsor container using WCF Integration Facility. For example: container.Register( Component.For<CalculatorSoap>() .Named("calculatorSoap") .LifeStyle.Transient .ActAs(new DefaultClientModel { Endpoint = WcfEndpoint.FromConfiguration("CalculatorSoap").LogMessages() } ) ); Is there any way to do the same via Windsor XML configuration file. I can't find any sample of this on google. Thanks in advance

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  • How to inject dependencies in Collection form ??

    - by Perpetualcoder
    How do I wire up dependencies where the dependency is in the form of a collection ?? For Example: public class Ninja { public List<IShuriken> Shurikens {get;set;} public IKatana Katana {get;set;} public void Attack() { // some code goes here to use weapons and kill people } } How do i use a container like Ninject in a case like this ??

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  • Browser plugin which can register it's own protocol

    - by Riz
    Hi, I need to implement browser plugin which can register it's own protocol (like someprotocol://someurl ) and be able to handle calls to this protocol (like user clicking on 'someprotocol' link calls function inside my plugin). As far as I undesrtand Skype does something simmilar, except I need to handle links within page context and not in separated app. Any advices on how this can be done? Can this be done without installing my own plugin, with help of flash/java?

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  • how to change font color and size within single label component in flex

    - by Rees
    i'm trying to create a unordered list in Flex. My issue is that within each line, i want the word NEW to be a different font color and different font size from the rest of the label text. I am unsure of how to do this INLINE within the label component. Any thoughts anyone? <s:VGroup fontSize="15" color="#ffffff"> <s:Label text="\u2022 NEW Invite your friends!" /> <s:Label text="\u2022 NEW Features coming soon!" /> <s:Label text="\u2022 NEW Invite your friends!" /> </s:VGroup>

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  • When would you use the Common Service Locator ?

    - by ajma
    I've been looking at the Common Service Locator as a way of abstracting my IoC container but I've been noticing that some people are strongly against this type of this. Do people recommend never using it? Always using it? or sometimes using it? If sometimes, then in what situations would you use it and what situations would you not use it.

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  • Injecting Dependencies into Domain Model classes with Nhibernate (ASP.NET MVC + IOC)

    - by Sunday Ironfoot
    I'm building an ASP.NET MVC application that uses a DDD (Domain Driven Design) approach with database access handled by NHibernate. I have domain model class (Administrator) that I want to inject a dependency into via an IOC Container such as Castle Windsor, something like this: public class Administrator { public virtual int Id { get; set; } //.. snip ..// public virtual string HashedPassword { get; protected set; } public void SetPassword(string plainTextPassword) { IHashingService hasher = IocContainer.Resolve<IHashingService>(); this.HashedPassword = hasher.Hash(plainTextPassword); } } I basically want to inject IHashingService for the SetPassword method without calling the IOC Container directly (because this is suppose to be an IOC Anti-pattern). But I'm not sure how to go about doing it. My Administrator object either gets instantiated via new Administrator(); or it gets loaded via NHibernate, so how would I inject the IHashingService into the Administrator class? On second thoughts, am I going about this the right way? I was hoping to avoid having my codebase littered with... currentAdmin.Password = HashUtils.Hash(password, Algorithm.Sha512); ...and instead get the domain model itself to take care of hashing and neatly encapsulate it away. I can envisage another developer accidently choosing the wrong algorithm and having some passwords as Sha512, and some as MD5, some with one salt, and some with a different salt etc. etc. Instead if developers are writing... currentAdmin.SetPassword(password); ...then that would hide those details away and take care of those problems listed above would it not?

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  • IOC - Should util classes with static helper methods be wired up with IOC?

    - by Greg
    Hi, Just trying to still get my head around IOC principles. Q1: Static Methods - Should util classes with static helper methods be wired up with IOC? For example if I have a HttpUtils class with a number of static methods, should I be trying to pass it to other business logic classes via IOC? Follow on questions for this might be: Q2: Singletons - What about things like logging where you may typically get access to it via a Logger.getInstance() type call. Would you normally leave this as is, and NOT use IOC for injecting the logger into business classes that need it? Q3: Static Classes - I haven't really used this concept, but are there any guidelines for how you'd typically handle this if you were moving to an IOC based approach. Thanks in advance.

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  • Configuring IoC container from modules/plug-ins ?

    - by rouen
    Hi guys, i am in big dilema.. I am working on highly modular web app in ASP.NET MVC 2 (in fact, core will be super lightweight, all work on modules/plugins). I found MEF pretty useful for modules discovery, but i dont want to us it as IoC container. There is pretty good chance that I will need advanced features of "true" IoC container, so I would like to use Unity. And here is the problem : how to allow modules to configure container (programatically) = register their own types (mvc controllers, custom implementations of services...) at application start without making hard dependency on Unity in all modules ? I know about Common Service Locator project, and it seems pretty good, but this interface co container only allows resolving types, not registering them (afaik). I really hope you can understand my point, I know my english is terrible (I am from non english speaking country :) Thanks a lot !

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  • Stage untracked files for commit without staging tracked file changes

    - by Blair Holloway
    Oftentimes, when using git, I find myself in this situation: I have changes to several files, but I only want to commit parts of them. I have added several untracked files, which I want to track and commit. Solving the first part is easy; I run: git add -p Then, I choose which hunks to stage, and which hunks remain in my working tree, but unstaged. However, git's patch mode skips over untracked files. What I would like to do is something like: git add --untracked But no such option appears to exist. If I have, say, six untracked files, I could stage them using add in interactive mode and the add untracked option, like so: git add -i a<CR> 1<CR> 2<CR> 3<CR> 4<CR> 5<CR> 6<CR> <CR> q<CR> I feel like there is, or should be, a quicker way of doing this, though. What am I missing?

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  • Checking whether an object exists in StructureMap container

    - by Kevin Pang
    I'm using StructureMap to handle the creation of NHibernate's ISessionFactory and ISession. I've scoped ISessionFactory as a singleton so that it's only created once for my web app and I've scoped ISession as a hybrid so that it will only be opened once per web request. I want to make sure that at the end of each web request, I properly dispose of ISession if it was created for that web request. I figured I could put some code in my Application_EndRequest routine to first check if an ISession was created, and if so, call ISession.Dispose. My current workaround is to just open up an ISession on Application_BeginRequest then dispose of it on Application_EndRequest, but that seems somewhat wasteful in that static file requests for images and css files and whatnot will create an ISession without ever using it. I know that the overall performance hit is negligable since ISessions are very lightweight, but it's getting annoying seeing all those ISessions being created inside NHProf.

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