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I am new in asp.net. i want to know about the generic handlers in asp.net and how and where it use?
Could you help me?
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Generic handler is a dynamic file and is generated with c# code and disk resource. Generic handler do not have web forms. Generic handler is also known as ASHX generic handler. It is useful when we want to return image from a query string,write XML and other Data.
What is an ASHX file? An ASHX file is a webpage that is used by the ASP.NET HTTP Handler to serve user with the pages that are referenced inside this file. The ASP.NET HTTP Handler processes the incoming request, references the pages from the . ashx file, and sends back the compiled page back to the user's browser.
A Web Handler is a custom ABL class that inherits the OpenEdge. Web. WebHandler class and contains methods that enable you to handle REST requests. You use a Web Handler in a WEB transport service that you create.
Generic handlers are the .NET components that implement the System.Web.IHttpHandler interface. Any class that implements the IHttpHandler interface can act as a target for the incoming HTTP requests. Page is also generic handler. In general generic handlers have an extension of ASHX.
You can find example here
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Handlers are used when you want to avoid the overhead of a regular asp.net page. Practical examples include image processing or handling AJAX requests.
See Using HTTP Modules and Handlers to Create Pluggable ASP.NET Components.
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