When writing cross platform apps with Xamarin, our goal is share as close to 100% of our code across all the platforms. While this is an admirable goal to aim for, it is not realistic. Very often, we find ourselves needing to access a platform specif…

在面向对象编程的早期,开发者要面对在应用程序或者类库中创建或检索类的实例的问题.针对这个问题有很多的解决方案.在过去几年中,依赖注入(DI)和控制反转(IoC)在开发者中很流行,并且取代了老的方案,比如Singleton. Singleton是创建和暴露类实例的一个方便的办法,但是它有几个缺点,从下面代码可以看出,类利用Singleton模式暴露了一个属性. Figure 1. Singleton Pattern Implementation public class DataService {…

Using Object Oriented Programming, OOP, style allows us to apply Inversion of Control, IoC, and more patterns. An IoC container helps decoupling dependencies by using a class constructor or properties to identify and inject its dependencies. This les…

http://www.hanselman.com/blog/ListOfNETDependencyInjectionContainersIOC.aspx I'm trying to expand my mind around dependency injection in .NET (beyond the two frameworks I've personally used) and an starting to put together a list of .NET Dependency I…

6. IoC容器 6.1 Spring IoC容器和bean介绍 这一章节介绍了Spring框架的控制反转(IoC)实现的原理.IoC也被称作依赖注入(DI).It is a process whereby objects define their dependencies, that is, the other objects they work with, only through constructor arguments, arguments to a factory method, o…

A Portable Class Library is a .NET library that can be used (in binary form, without recompiling) on multiple .NET platforms.  When you create a Portable Class Library in Visual Studio, you can choose which platforms to target.  Portable libraries su…

在codeproject看到一篇文章,群里的一个朋友要帮忙我翻译一下顺便贴出来,这篇文章适合新手,也算是对MEF的一个简单用法的介绍. Introduction In a simple statement if I want to define an ASP.NET MVC controller then I can say that classes that are responsible for receiving and processing incoming http requests,…

Spring framework中的beans 1.概述 bean其实就是各个类实例化后的对象,即objects spring framework的IOC容器所管理的基本单元就是bean spring的IOC容器管理bean的实例化.依赖关系配置过程.bean组装过程(依据依赖关系进行组装) 使用spring的IOC容器管理beans,有三种配置beans之间的依赖关系的方法,分别是XML-based configuration.annotion-based configuration以及Jav…

前言 阅读本文之前,您也可以到Asp.Net Web API 2 系列导航进行查看 http://www.cnblogs.com/aehyok/p/3446289.html 本文主要来介绍在Asp.Net Web API使用Web API的Decpendency Resolver在控制器中如何注入依赖. 本文使用VS2013.本文的示例代码下载链接为http://pan.baidu.com/s/1BvFTs 为什么要使用Dependency Resolver 一个dependency 其实就是一…

Please note: this article has been superceded by the documentation for the ChannelAdam WCF Library. Background In my previous article, How To Call WCF Services Properly, I researched and highlighted the typical problems with using WCF clients (such a…