asp.net mvc - Dynamic Routing in mvc -


recently attend on interview, asking dynamic routing in mvc.

question how dynamically route action method depending upon parameter string or int.

for example :

public actionresult add(datatype variable) {       //depending upon value asking how redirect. }

redirects aren't handled routing, it's handled actions executed.

i suppose meant how create routing rules execute action foo if data type string, , how execute action bar if data type int.

you use routing constraints, below i've added screenshot of supported constraints.

this how use them

public class homecontroller: controller {     // foobar.com/home/123     [route("home/{id:int}")]     public actionresult foo(int id)     {         return this.view();     }      // foobar.com/home/onetwothree     [route("home/{id:alpha}")]     public actionresult bar(string id)     {         return this.view();     } }

more information can found here.

list of supported routing constraints


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