Pro ASP. NET MVC 4, 4th edition Reading Note---part (1) DI

What I learned from Pro ASP 4 book

Open source of ASP.

Http://www.opensource.org/licenses/ms-pl.html

1. Introduce new trends of web development

node. js, Ruby on Rails,

2. Ninject

1) Ninject is used to de-couple classed, which known as DI dependency Inject. It is a DI container.

2) Adding Ninject to the Visual Studio Project

Open nuget->online-> Search for Ninject

3) How to use Ninject to implement DI

Implement Resolver

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSYSTEM.WEB.MVC;5 usingNinject;6 usingninject.parameters;7 usingNinject.syntax;8 usingSystem.Configuration;9 usingEssentialtools.models;Ten  One namespaceessentialtools.infrastructure A { -      Public classNinjectdependencyresolver:idependencyresolver -     { the         PrivateIkernel kernel; -  -          PublicNinjectdependencyresolver () -         { +Kernel =NewStandardkernel (); - addbindings (); +         } A  at          Public ObjectGetService (Type servicetype) -         { -             returnkernel. Tryget (servicetype); -         } -  -          Publicienumerable<Object>getservices (Type servicetype) in         { -             returnkernel. GetAll (servicetype); to         } +  -         Private voidaddbindings () the         { *Kernel. Bind<ivaluecalculator> (). To<linqvaluecalculator>(); $             //Create binding with property valuePanax NotoginsengKernel. Bind<idiscounthelper> (). To<defaultdiscounthelper> (). Withpropertyvalue ("discountsize", 50m); -              the             //Binding When specific condition happened +Kernel. Bind<idiscounthelper> (). To<flexiblediscounthelper>() A. Wheninjectedinto<linqvaluecalculator>(); the         } +     } -}

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Inject Resolver into Global.asax

protected void Application_Start ()        {            arearegistration.registerallareas ();            Dependencyresolver.setresolver (new  ninjectdependencyresolver ());            Webapiconfig.register (globalconfiguration.configuration);            Filterconfig.registerglobalfilters (globalfilters.filters);            Routeconfig.registerroutes (routetable.routes);        }

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Use DI Relationship in Controller

Private ivaluecalculator Calc;         //        // GET:/home/         Public HomeController (ivaluecalculator calcparam)        {            = calcparam;        }

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3. Moq

It is a DLL used to unit testing

Pro ASP. NET MVC 4, 4th edition Reading Note---part (1) DI