基于dotNetWeb应用程序开发01(.Net2.0介绍).ppt

1、.Net 2.0介绍,概念、B/S 架构、特点、ASP.Net,基于dotNet的Web应用程序开发, 2007.032007.06,一、.Net概念,基于dotNet的Web应用程序开发, 2007.032007.06,.NET Framework 是支持生成和运行下一代应用程序和 XML Web services 的内部 Windows 组件。,公共语言运行库(Common Language Runtime),VB.Net / C# / J# / C+.Net (托管代码),公共语言运行库管理内存、线程执行、代码执行、代码安全验证、编译以及其他系统服务。,一、.Net概念,基于dotNet

2、的Web应用程序开发, 2007.032007.06,.NET Framework 是支持生成和运行下一代应用程序和 XML Web services 的内部 Windows 组件。,.Net Framework Class Library,.NET Framework 类库是一个与公共语言运行库紧密集成的可重用的类型集合。该类库是面向对象的。,控制台应用程序。 Windows GUI 应用程序（Windows 窗体）。 ASP.NET 应用程序。 XML Web services。 Windows 服务。,一、.Net概念,基于dotNet的Web应用程序开发, 2007.032007.06

3、,.NET Framework 是支持生成和运行下一代应用程序和 XML Web services 的内部 Windows 组件。,一、.Net概念,基于dotNet的Web应用程序开发, 2007.032007.06,.NET Framework 是支持生成和运行下一代应用程序和 XML Web services 的内部 Windows 组件。,C/S (Client / Server),B/S (Browser / Server),QQ 网上银行,网站 Web应用,二、B/S应用,基于dotNet的Web应用程序开发, 2007.032007.06,系统开发、维护和升级的经济性,BS模式提

4、供了一致的用户界面,BS模式具有很强的开放性,BS模式的结构易于扩展,BS模式具有更强的信息系统集成性,BS模式提供灵活的信息交流和信息发布服务,1.特点,二、B/S应用,基于dotNet的Web应用程序开发, 2007.032007.06,2.Net的B/S应用,Web应用（.NET） 通过ASP.Net技术实现B/S的应用。,三、ASP.Net,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net: Microsoft ASP.NET is a set of technologies in the Microsoft .NET Framework for b

5、uilding Web applications and XML Web services.,ASP.NET pages execute on the server and generate markup such as HTML, WML, or XML that is sent to a desktop or mobile browser.,ASP.NET pages use a compiled, event-driven programming model that improves performance and enables the separation of applicati

6、on logic and user interface.,三、ASP.Net,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net: Microsoft ASP.NET is a set of technologies in the Microsoft .NET Framework for building Web applications and XML Web services.,B / S,Web,ASP.Net,基于浏览器的应用,四、ASP.Net中的控件,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net Contro

7、ls: Components in Web.,标准 Control,Html Control,Data Control,Validation Control,Navigation Control,Login Control,WebPart Control,Page,Container for Controls & Template,Custom Control,四、ASP.Net中的控件,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net Controls: Components in Web.,标准 Control,Html Control,Differen

8、ce,四、ASP.Net中的控件,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net Controls: Components in Web.,ASP.Net Control,Html,Properties of ASP.Net Controls * HTML/ Label * Code,外观、布局、可访问性、行为、数据、其他（杂项，ID）,四、ASP.Net中的控件,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net Controls: Components in Web.,ASP.Net Control,Events,De

9、legates & Events of ASP.Net Controls * HTML / Label * Code,其他（杂项，Init、Load、PreRender、UnLoad、Disposed）、数据、操作,五、ASP.Net模型,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0: Microsoft ASP.NET, the newer version.,Code Model:,Page.aspx,Page.aspx.cs,Code-Behind: 将页面控制逻辑推到后台的代码文件执行.且页面是继承自后台的代码文件中定义的页面类的.,Sam

10、ple,public partial class _Default : System.Web.UI.Page,五、ASP.Net模型,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0: Microsoft ASP.NET, the newer version.,Code Model:,Page.aspx,Page.aspx.cs,Controls: 将用户操作和数据展现封装在一个页面控件中,并用标签定义控件 Events-Driven: 将用户与页面的交互过程按照事件驱动方式传递给后台处理.,Sample,五、ASP.Net模型,基于dotNet的W

11、eb应用程序开发, 2007.032007.06,ASP.Net 2.0: Microsoft ASP.NET, the newer version.,Code Model:,System,Web,UI,HtmlControls,WebControls,WebParts,Page: System.Web.UI.Page All Pages are inherits this class.,Form: System.Web.UI.HtmlControls.HtmlForm All server controls are put in the form.,五、ASP.Net模型,基于dotNet的

12、Web应用程序开发, 2007.032007.06,ASP.Net 2.0: Microsoft ASP.NET, the newer version.,Code Model:,System.Web.UI.Control,System.Web.UI.HtmlControls.HtmlControl,System.Web.UI.WebControls.WebControl,System.Web.UI.HtmlControls.*,System.Web.UI.WebControls.*,六、ASP.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,A

13、SP.Net 2.0 Pages: Microsoft ASP.NET, the container of marked html & controls. It is finally explained html pages.,Components:,Page 指令,Html,Script 声明块,Script 呈现块,Controls 标记块,Others ,六、ASP.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.NET, the container of marked h

14、tml & controls. It is finally explained html pages.,Life Cycle,Init Process,Load Process,Render Process,Save Page State Process,Unload Process,六、ASP.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.NET, the container of marked html & controls. It is finally explained

15、 html pages.,Life Cycle,初次页请求: IsPostBack = false,回发页请求: IsPostBack = true,The page first loads.,The page reloads. Universally, it is invoked by the controls postbacking.,六、ASP.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.NET, the container of marked html & contr

16、ols. It is finally explained html pages.,Life Cycle,页视图状态 Viewstate,Save the page and controls in the page properties for restoring them in process of reloading page. It is just a hidden input domain in html page.,六、ASP.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft AS

17、P.NET, the container of marked html & controls. It is finally explained html pages.,Life Cycle,页视图状态 Viewstate,Static State The properties of control are set by designing. They are restored before Page Init.,六、ASP.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.NET,

18、 the container of marked html & controls. It is finally explained html pages.,Life Cycle,页视图状态 Viewstate,(2) Dynamic State The properties of control are set by runtiming. They are restored before Page Load.,六、Asp.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.NET,

19、the container of marked html & controls. It is finally explained html pages.,Life Cycle,Init Process,PreInit,Init,InitComplete,Has constructed controls and can use them Not restore the dynamic state (Viewstate) Apply the page Themes,六、Asp.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0

20、Pages: Microsoft ASP.NET, the container of marked html & controls. It is finally explained html pages.,Life Cycle,Load Process,PreLoad,Load,Control Events,Has restored all states Using the controls,LoadComplete,六、Asp.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.N

21、ET, the container of marked html & controls. It is finally explained html pages.,Life Cycle,Render Process,PreRender,DataBind Process,PreRenderComplete,Can decide the properties of controls Using the controls final states,六、Asp.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Micr

22、osoft ASP.NET, the container of marked html & controls. It is finally explained html pages.,Life Cycle,Save Page States Process,SaveStateComplete,Response Output Stream,Save the states into the Viewstate Provide the output stream to Response,六、Asp.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP

23、.Net 2.0 Pages: Microsoft ASP.NET, the container of marked html & controls. It is finally explained html pages.,Life Cycle,Unload Process,Unload,Render html Clear the page object,六、Asp.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.NET, the container of marked html

24、 & controls. It is finally explained html pages.,Life Cycle,PreInit / Init / InitComplete / (RestoreState) PreLoad / Load / Control_Events / LoadComplete PreRender / (DataBind Process) / PreRenderComplete SaveStateComplete / (Response Outstream) Unload,六、Asp.Net 2.0 Pages,基于dotNet的Web应用程序开发, 2007.032007.06,ASP.Net 2.0 Pages: Microsoft ASP.NET, the container of marked html & controls. It is finally explained html pages.,Life Cycle,六、Asp.Net