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ASP.NET Core: Cloud-ready, Enterprise Web Application Development by James Singleton, Valerio De Sanctis, Mugilan T. S. Ragupathi

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Route attribute at the controller level

You will notice that, with the URL pattern for the action methods, Index and Index2, we repeat the controller name, Home, in both URL patterns, Home and Home/Index3. Instead of repeating the controller method name (or any common part in the URL) at the action method level, we can define it at the controller level.

In the following code, the common part of the URL (Home) is defined at the controller level and the unique part is defined at the action method level. When the URL pattern is getting mapped to the action methods of the controller, both route parts (at the controller level and at the action method level) are merged and matched. So there will be no difference between the routes defined earlier and ...

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