What is the best book for ASP.NET C# programming? Which is the best STANDARD book for. What is the best book to learn.NET environment (C# to be precise)?
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Beginning ASP.NET 4: in C# and. Here you can find out more about my book Beginning ASP.NET 4.5 in C# and VB. Beginning ASP.NET 4.5 helps you learn to build.
ASP. NET - Wikipedia, the free encyclopedia. ASP. NET is an open- source. It was developed by Microsoft to allow programmers to build dynamic web sites, web applications and web services. It was first released in January 2.
NET Framework, and is the successor to Microsoft's Active Server Pages (ASP) technology. ASP. NET is built on the Common Language Runtime (CLR), allowing programmers to write ASP.
NET code using any supported . NET language. The ASP.
NET SOAP extension framework allows ASP. NET components to process SOAP messages. ASP. NET's successor is ASP. NET Core. It is a re- implementation of ASP.
NET as a modular web framework, together with other frameworks like Entity Framework. The new framework uses the new open- source . NET Compiler Platform (codename . ASP. NET MVC, ASP. NET Web API, and ASP. NET Web Pages (a platform using only Razor pages) have merged into a unified MVC 6. Even prior to the release, dozens of books had been written about ASP.
NET. Scott Guthrie became the product unit manager for ASP. NET, and development continued apace, with version 1. April 2. 4, 2. 00.
Windows Server 2. ASP. NET is loosely based on HTML. This release focused on improving ASP. NET's support for mobile devices. Characteristics. Web forms are contained in files with a . The component markup can include server- side Web Controls and User Controls that have been defined in the framework or the web page. For example, a textbox component can be defined on a page as < asp: textbox id='myid' runat='server'> , which is rendered into a html input box.
Additionally, dynamic code, which runs on the server, can be placed in a page within a block < % - - dynamic code - - %> , which is similar to other Web development technologies such as PHP, JSP, and ASP. With ASP. NET Framework 2. Microsoft introduced a new code- behind model that lets static text remain on the . Code- behind files typically have names like My. Page. aspx. cs or My. Page. aspx. vb while the page file is My.
Page. aspx (same filename as the page file (ASPX), but with the final extension denoting the page language). This practice is automatic in Visual Studio and other IDEs however the user can change the code- behind page.
Also, in the web application format, the pagename. The designer file is a file that is autogenerated from the aspx page that allows the programmer to reference components in the aspx page from the cs page without having to declare them manually as in versions prior to ASP.
Net version 2. In theory, this would allow a Web designer, for example, to focus on the design markup with less potential for disturbing the programming code that drives it. This is similar to the separation of the controller from the view in model. Unlike user controls, these controls do not have an ASCX markup file, having all their code compiled into a dynamic link library (DLL) file. Such custom controls can be used across multiple Web applications and Visual Studio 2. Rendering technique.
During compilation, the template (. Literal text goes into instances of the Literal control class, and server controls are represented by instances of a specific control class. The initialization code is combined with user- written code (usually by the assembly of multiple partial classes) and results in a class specific for the page. The page doubles as the root of the control tree.
Actual requests for the page are processed through a number of steps. First, during the initialization steps, an instance of the page class is created and the initialization code is executed. This produces the initial control tree, which is now typically manipulated by the methods of the page in the following steps. As each node in the tree is a control represented as an instance of a class, the code may change the tree structure as well as manipulate the properties/methods of the individual nodes.
Finally, during the rendering step a visitor is used to visit every node in the tree, asking each node to render itself using the methods of the visitor. The resulting HTML output is sent to the client.
After the request has been processed, the instance of the page class is discarded and with it the entire control tree. This is a source of confusion among novice ASP. NET programmers who rely on the class instance members that are lost with every page request/response cycle. State management. As such, if an application uses stateful interaction, it has to implement state management on its own. ASP. NET provides various functions for state management.
Conceptually, Microsoft treats . Problems may arise if an application must track . State management in ASP.
NET pages with authentication can make Web scraping difficult or impossible. Application. These are set and initialized when the Application. Application state variables are accessed using the Applications collection, which provides a wrapper for the application state.
Application state variables are identified by name. These variables, accessed using the Session collection, are unique to each session instance. The variables can be set to be automatically destroyed after a defined time of inactivity even if the session does not end. Client- side user session is maintained by either a cookie or by encoding the session ID in the URL itself. This is the fastest way; however, in this mode the variables are destroyed when the ASP.
NET process is recycled or shut down. State server mode. ASP. NET runs a separate Windows service that maintains the state variables.
Because state management happens outside the ASP. NET process, and because the ASP. NET engine accesses data using . NET Remoting, ASPState is slower than In- Process. This mode allows an ASP.
NET application to be load- balanced and scaled across multiple servers. Because the state management service runs independently of ASP. NET, the session variables can persist across ASP. NET process shutdowns.
However, since session state server runs as one instance, it is still one point of failure for session state. The session- state service cannot be load- balanced, and there are restrictions on types that can be stored in a session variable. SQL Server mode. State variables are stored in a database, allowing session variables to be persisted across ASP. NET process shutdowns.
The main advantage of this mode is that it allows the application to balance load on a server cluster, sharing sessions between servers. This is the slowest method of session state management in ASP. NET. ASP. NET session state enables you to store and retrieve values for a user as the user navigates ASP.
NET pages in a Web application. HTTP is a stateless protocol. This means that a Web server treats each HTTP request for a page as an independent request. The server retains no knowledge of variable values that were used during previous requests.
ASP. NET session state identifies requests from the same browser during a limited time window as a session, and provides a way to persist variable values for the duration of that session. By default, ASP. NET session state is enabled for all ASP. NET applications. Alternatives to session state include the following: Application state, which stores variables that can be accessed by all users of an ASP.
NET application. Profile properties, which persists user values in a data store without expiring them. ASP. NET caching, which stores values in memory that is available to all ASP.
NET applications. View state, which persists values in a page. Cookies. The query string and fields on an HTML form that are available from an HTTP request. View state. The state of the controls is encoded and sent to the server at every form submission in a hidden field known as .
The server sends back the variable so that, when the page is re- rendered, the controls render at their last state. At the server side, the application may change the viewstate, if the processing requires a change of state of any control. The states of individual controls are decoded at the server, and are available for use in ASP. NET pages using the View.
State collection. View state is turned on by default and normally serializes the data in every control on the page regardless of whether it is actually used during a postback.
This behavior can (and should) be modified, however, as View state can be disabled on a per- control, per- page, or server- wide basis. Developers need to be wary of storing sensitive or private information in the View state of a page or control, as the base. By default, View state does not encrypt the . Encryption can be enabled on a server- wide (and server- specific) basis, allowing for a certain level of security to be maintained. Because the . NET Framework is object- oriented and allows for inheritance, many developers would define a new base class that inherits from . While this allows for common elements to be reused across a site, it adds complexity and mixes source code with markup. Furthermore, this method can only be visually tested by running the application .
Other developers have used include files and other tricks to avoid having to implement the same navigation and other elements in every page. ASP. NET 2. 0 introduced the concept of master pages, which allow for template- based page development. A Web application can have one or more master pages, which, beginning with ASP. NET 2. 0, can be nested. The rest of the page is defined by the shared parts of the master page, much like a mail merge in a word processor. All markup and server controls in the content page must be placed within the Content.
Place. Holder control. When a request is made for a content page, ASP.
NET merges the output of the content page with the output of the master page, and sends the output to the user. The master page remains fully accessible to the content page. This means that the content page may still manipulate headers, change title, configure caching etc. If the master page exposes public properties or methods (e.
Other files. From version 2. Code behind page of an asmx file is placed into the app.