C#.net中的数据访问层. [英] data access layer in C#.net.

问题描述

大家好，

我想了解C#.net 4.0中的数据访问层"；谁能告诉我什么是数据访问层?它是如何工作的?我如何以简单的方式逐步开发数据访问层.以及如何在我的应用程序中使用它.

在此先感谢.

Hi all,

I want to learn about "Data Access Layer" in C# .net 4.0; any one can tell me what is data access layer is? how does it works ? how can i develop data access layer Step by Step in simple way. and how to use this in my application.

Thanks in advance.

推荐答案

如果不考虑特定的体系结构解决方案，这个问题就毫无意义.而且，如果不学习体系结构的其他部分，您几乎无法学习"这一层.


我建议您研究以下建筑模式( http://en.wikipedia.org/wiki /Architectural_pattern_(computer_science) [ ^ ] ):

MVVM —模型视图视图模型，
http://en.wikipedia.org/wiki/Model_View_ViewModel [> http://en.wikipedia.org/wiki/Model-view-controller [ ^ ]))，

MVA —模型视图适配器，
http://en.wikipedia.org/wiki/Model–view–adapter [ ^ ]，

MVP —模型视图呈现器，
> http://en.wikipedia.org/wiki/Model-view-presenter [ ^ ].

请注意这些架构的动机.如果了解了这一点，就可以了解特定图层的角色和更多详细信息.

—SA

The question makes no sense without considering of particular architectural solutions. And you hardly can "learn about" just this layer without learning other parts of architecture.


I suggest you study the following architectural patterns (http://en.wikipedia.org/wiki/Architectural_pattern_(computer_science)[^]):

MVVM — Model View View Model,
http://en.wikipedia.org/wiki/Model_View_ViewModel[^],

MVC — Model-View-Controller,
http://en.wikipedia.org/wiki/Model-view-controller[^]),

MVA — Model-View-Adapter,
http://en.wikipedia.org/wiki/Model–view–adapter[^],

MVP — Model-View-Presenter,
http://en.wikipedia.org/wiki/Model-view-presenter[^].

Pay attention for the motivation of those architectures. If you understand it, you would be able to understand the roles of particular layers and further detail.

—SA

SAKryukov，

我知道MVVM模式，我使用过MVVM在我先前基于WPF的项目中，我还使用过数据访问层".数据访问层和连接由我的上级建立.我不明白这一点.因此需要数据访问层的基础知识以及如何实现这一点.

Hi SAKryukov,

I know about MVVM pattern, I have used MVVM In my previous project based on WPF, I also used "Data Access Layer" in that. Data Access Layer and Connection was established by my senior. i couldn''t understand that in detail. so want from basic knowledge of data Access layer, And How to implement that.

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