Dynamically modify the action name in Asp.net web API

In route settings, my route settings are as follows:

 
/API/{Controller}/Jqgrid/{Action}/{ID}
 

For the following URL, the list method of the usercontroller class is executed by default:

 
/API/User/Jqgrid/List
 

I want all routes whose URLs contain jqgrid to execute the "jqgrid _ {action}" method, that is, the jqgrid_list method. After a few days of suffering, finally solved. UpperCode(Here I copied my questions on stackoverflow and my own answers. You are welcome to point out the unauthentic English in this article. Thank you ):

first of all, I need to add a jqgridcontrollerconfiguration attribute to replace the default action selector applied to the Controller with my one.

[Jqgridcontrollerconfiguration]Public ClassUsercontroller: apicontroller {//Get:/API/user/jqgrid/List[Httpget]PublicJqgridmodel <user>Jqgrid_list () {jqgridmodel<User> result =NewJqgridmodel <user>(); Result. Rows=Get ();ReturnResult ;}}
 

Here's the code of jqgridcontrollerconfiguration:

1   Public   Class  Jqgridcontrollerconfiguration: attribute, icontrollerconfiguration  2   {  3       Public   Void  Initialize (httpcontrollersettings controllersettings, httpcontrollerdescriptor controllerdescriptor)  4   {  5 Controllersettings. Services. Replace ( Typeof (Ihttpactionselector ), New  Jqgridactionselector ());  6   }  7 }

In jqgridactionselector, the "Action" is modified if a "jqgrid/" exists in the request URL.

 1   Public   Class  Jqgridactionselector: apicontrolleractionselector  2   {  3       Public   Override Httpactiondescriptor selectaction (httpcontrollercontext controllercontext)  4   {  5 Uri url = Controllercontext. Request. requesturi;  6           If (URL. segments. Any (S => String . Compare (S, "  Jqgrid/  " , True ) = 0  )) 7   {  8 Controllercontext. routedata. Values [ "  Action  " ] = "  Jqgrid _  " + Controllercontext. routedata. Values [ "  Action  "  ]. Tostring ();  9   } 10   11           Return   Base  . Selectaction (controllercontext );  12   }  13 }