6th MVC Basic Tools

DI container, Unit Test framework, simulation tool

Notes:

1.Ninject conditional Binding Common methods:

When (predicate)//The binding is enforced when the predicate result is true. (predicate a lambda expression)

Whenclasshas<t> ()//when the injected class is annotated with an annotation attribute and its type is T, the binding is enforced ([T])

Wheninjectedinfo<t> ()//When the class to be injected is type T, the binding is enforced

2. Use Ninject:

1. Create a Dependency resolver (Infrastructure)

　　　　

usingSystem;usingSystem.Collections.Generic;usingSYSTEM.WEB.MVC;usingEssentialtools.models;usingNinject;namespaceessentialtools.infrastructure{ Public classNinjdectdependencyresolver:idependencyresolver {PrivateIkernel kernel;  PublicNinjdectdependencyresolver () {//creating an instance of the Ninject kernelKernel =NewStandardkernel ();        Addbindings (); }         Public ObjectGetService (Type servicetype) {returnkernel.        Tryget (servicetype); }         Publicienumerable<Object>getservices (Type servicetype) {returnkernel.        GetAll (servicetype); }        //establishing the relationship between an interface and an implementation class        Private voidaddbindings () {//ConstructorsKernel. Bind<ivaluecalculator> (). To<linqvaluecalculator>(); //Properties//kernel. Bind<idiscoutnhelper> (). To<defaultdiscoutnhelper> ().            Withpropertyvalue ("Discountsize", 20M); //constructor ParametersKernel. Bind<idiscoutnhelper> (). To<defaultdiscoutnhelper> (). Withconstructorargument ("Discountparam", 30M); //Conditional BindingKernel. Bind<idiscoutnhelper> (). To<flexiblediscounthelper> (). Wheninjectedinto<linqvaluecalculator>(); }    }}

2. Registering a Dependency resolver (global.asax)

　　

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingsystem.web;usingSystem.Web.Http;usingSYSTEM.WEB.MVC;usingSystem.Web.Routing;usingessentialtools.infrastructure;namespaceessentialtools{//Note: For instructions on enabling IIS6 or IIS7 Classic mode,//please visithttp://go.microsoft.com/?LinkId=9394801     Public classMvcApplication:System.Web.HttpApplication {protected voidApplication_Start () {arearegistration.registerallareas (); //registering a Dependency parserDependencyresolver.setresolver (Newninjdectdependencyresolver ());            Webapiconfig.register (globalconfiguration.configuration);            Filterconfig.registerglobalfilters (globalfilters.filters);        Routeconfig.registerroutes (routetable.routes); }    }}

3. Refactoring Controller

.................
  Private ivaluecalculator Calc;          Public HomeController (ivaluecalculator calcparam)        {            = calcparam;        } .................

Unit testing this is determined by the way of thinking and the style of development.

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6th MVC Basic Tools