Skip to main content

Asp.net Url Routing vs Rewriting


IIS URL Rewriting

When a client makes a request to the Web server for a particular URL, the URL-rewriting component analyzes the requested URL and changes it to a different other URL on the same server. The URL-rewriting component runs very early in the request processing pipeline, so is able to modify the requested URL before the Web server makes a decision about which handler to use for processing the request.

ASP.NET Routing

ASP.NET routing is implemented as a managed-code module that plugs into the IIS request processing pipeline at the Resolve Cache stage (PostResolveRequestCache event) and at the Map Handler stage (PostMapRequestHandler). ASP.NET routing is configured to run for all requests made to the Web application.

Differences between URL rewriting and ASP.NET routing:
  1. URL rewriting is used to manipulate URL paths before the request is handled by the Web server. The URL-rewriting module does not know anything about what handler will eventually process the rewritten URL. In addition, the actual request handler might not know that the URL has been rewritten.
  2. ASP.NET routing is used to dispatch a request to a handler based on the requested URL path. As opposed to URL rewriting, the routing component knows about handlers and selects the handler that should generate a response for the requested URL. You can think of ASP.NET routing as an advanced handler-mapping mechanism.
In addition to these conceptual differences, there are some functional differences between IIS URL rewriting and ASP.NET routing:

  1. The IIS URL-rewrite module can be used with any type of Web application, which includes ASP.NET, PHP, ASP, and static files. ASP.NET routing can be used only with .NET Framework-based Web applications.
  2. The IIS URL-rewrite module works the same way regardless of whether integrated or classic IIS pipeline mode is used for the application pool. For ASP.NET routing, it is preferable to use integrated pipeline mode. ASP.NET routing can work in classic mode, but in that case the application URLs must include file extensions or the application must be configured to use "*" handler mapping in IIS.
  3. The URL-rewrite module can make rewriting decisions based on domain names, HTTP headers, and server variables. By default, ASP.NET routing works only with URL paths and with the HTTP-Method header.
  4. In addition to rewriting, the URL-rewrite module can perform HTTP redirection, issue custom status codes, and abort requests. ASP.NET routing does not perform those tasks.
  5. The URL-rewrite module is not extensible in its current version. ASP.NET routing is fully extensible and customizable. 
Labels:

Comments

Post a Comment

Popular posts from this blog

ASP.NET e-Commerce website GridView with Product Listing

Introduction : E-Commerce web applications are everywhere these days, and many share a common set of functionality. In this article, I will show how to use the GridView and ListView controls to build a powerful product page with many of the features found on today's e-commerce sites. We'll build a bicycle store product grid using some free clip art bicycle images. The example files are user controls which can be easily added to a page. We're only using three images here to keep the size of the sample application small. In previously I was explained about  Sending Email from Asp.net With Dynamic Content  ,  How To Export gridview data to Excel/PDF , CSV Formates in asp.net C#  , How to print Specific Area in asp.net web page How To- Search records or data in gridview using jQuery  . A shopping cart application would require to display the products in a multi column grid, rather than a straight down list or a table. The each item in a product grid would have
Post a Comment
Read more

How to hide url parameters in asp.net

There are different ways to Hide the URL in asp.net , you can choose any one from bellow options . Previously I was Explained about the  Difference between Convert.tostring and .tostring() method Example  ,   Reasons to use Twitter Bootstrap , How to Register AJAX toolkit in web.config file in asp.net a) Using Post Method b) Using Of Session . c) URL Encoding & decoding process . d) Using Server.Transfer() instead of Response.Redirect() method (1)Use a form and POST the information. This might require additional code in source pages, but should not require logic changes in the target pages (merely change Request.QueryString to Request.Form). While POST is not impossible to muck with, it's certainly less appealing than playing with QueryString parameters. (2)Use session variables to carry information from page to page. This is likely a more substantial effort compared to (1), because you will need to take session variable checking into account (e.g. the
Post a Comment
Read more

Nested GridView in ASP.NET Using c# with show/hide

In This example shows how to create Nested GridView In Asp.Net Using C# And VB.NET With Expand Collapse Functionality. Previous post I was Explained about the   ASP.NET e-Commerce website GridView with Product Listing  ,  How To Export gridview data to Excel/PDF , CSV Formates in asp.net C# , Sending Email from Asp.net With Dynamic Content  ,  SQL Server- Case Sensitive Search in SQL Server I have used JavaScript to Create Expandable Collapsible Effect by displaying Plus Minus image buttons. Customers and Orders Table of Northwind Database are used to populate nested GridViews. Drag and place SqlDataSource from toolbox on aspx page and configure and choose it as datasource from smart tags Go to HTML source of page and add 2 TemplateField in <Columns>, one as first column and one as last column of gridview. Place another grid in last templateField column. Markup of page after adding both templatefields will like as shown below. HTML SOURCE < a
Post a Comment
Read more