Why handlers in asp.net

For example, the handler for web Page creates the page and control objects, runs your code, and renders the final HTML. NET default handlers:. NET web form model has to go through many steps such as creating web page objects, persisting view state etc. What we are interested into is to develop some low level interface that provides access to objects like Request and Response but doesn't use the full control based web form model discussed above.

These examples extend the ASP. NET architecture but bypass the web-page model. The result is a leaner, more efficient component. What is HTTP module: Help in processing of page request by handing application events , similar to what global.

How to write custom HTTP handler: Step 1: What all we need to know before writing handlers There are two type of handler you actually can make. Further these Interfaces require us to implement the ProcessRequest method and the IsReusable property. Step 2: Create a ASP. Type: identifies the HTTP handler class. This identification consists of two portions. First is the fully qualified class name , That portion is followed by a comma and the name of the DLL assembly that contains the class.

Another scenario where you might want to use a custom HTTPhandler is when you would like to execute some pre-processing logic in your application based on the extensions. Net page, HTTPhandlers are much more portable and reusable than your web pages. When a request for a resource comes to the ASP. Net Engine, the ASP. Web namespace. Note that the PageHandlerFactory implements the IHTTPhandlerFactory interface and contains a method called GetHandler which in turn is responsible for returning the appropriate handler to server the particular request.

Net Web application. The most common handler is an ASP. Net page handler that processes. When users request an. While the former is used to specify whether the handler can be reused, the latter is a method that does the actual processing for you. The mapping information for the HTTPhandlers are available in the configuration files. Here's how a section of your machine. Now, you would also need to let the runtime know when your custom HTTPhandler should be invoked. Where should you specify this?

So in simple words, an HttpModule will execute for every request of your application, irrespective of the extension used. Http Modules are generally used for security, statistics, logging etc. This article has been editorially reviewed by Suprotim Agarwal. C and. Organized around concepts, this Book aims to provide a concise, yet solid foundation in C and. NET, covering C 6. NET Core, with chapters on the latest.

NET Core 3. NET Standard and C 8. Use these concepts to deepen your existing knowledge of C and. NET, to have a solid grasp of the latest in C and. NET OR to crack your next. NET Interview. Views: NET Interview question. The Absolutely Awesome. NET Interview Book. The History of ASP.