routing in asp.net mvc for Dummies

routing in asp.net mvc for Dummies

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Default Values: Instead of earning a parameter optional, you can also offer a default value instantly while in the route configuration. This can be helpful for parameters That ought to usually have a certain default value.

Attribute routes can be coupled with inheritance. This can be powerful combined with token substitution. Token substitute also relates to route names described by attribute routes.

This is because we haven't set any default values for our Route parameters. If we haven't specified the name on the controller or motion system within the URL, which controller and motion technique should really execute?

The previous illustrations confirmed working with IUrlHelper inside of a controller. The commonest use inside a controller is always to make a URL as Component of an motion consequence.

Conventional routing is buy-dependent. In general, routes with places really should be put before as They are extra specific than routes with out a place.

You may assume to strike this issue with the default route controller / action / id? . This issue is unusual in observe since Url.Motion always explicitly specifies a controller and action worth.

Attribute routing uses a set of attributes to map actions on to route templates. The next StartUp.Configure code is usual to get a Relaxation API and is used in the next sample:

Something following "localhost:1234/" will be considered as a controller identify. The same way, something after the controller identify might be regarded as action identify after which you can the worth of id parameter.

The traditional default route handles routes more succinctly. Having said that, attribute routing lets and needs specific control of which route templates utilize to each motion.

It  is used for dealing with HTTP requests and looking matching motion techniques, after which you can executing precisely the same

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This is helpful for protecting dependable habits and cutting down the necessity to specify every single parameter while in the URL explicitly.

This is named Inline Route Constraint. Inline constraints are specified immediately within the route template by appending a colon (:) accompanied by the constraint name to a route parameter.

Devoted typical routes rely upon a special behavior of default values that don't have a corresponding route parameter that prevents the route from getting way too greedy with URL era. In such cases the default values are controller = Blog site, motion = Short article , and neither controller nor motion seems being a route parameter.