asp.net - MVC 6 @inherit RazorPage -

i trying migrate mvc 5 application asp.net 5 mvc 6 (beta 7). having problems when using @inherits , @model directive together. works fine when used separately.

in _viewimports added @inherits directive use base page custom user properties.

public abstract class baseviewpage<tmodel> : razorpage<tmodel> {     protected myprincipal appuser     {                 {             return new myprincipal(this.user claimsprincipal);         }     } } 

_viewimports.cshttml

@inherits commonweb.baseviewpage<tmodel> @addtaghelper "*, microsoft.aspnet.mvc.taghelpers" 

and can go appuser. in views. works if dont use typed view. if add @model directive in view inherited view page goes away.

help appreciated

update:

i did using custom pagebasetype in web.config in prior versions.

workaround.

public class viewhelper {     viewcontext _context;      public viewhelper(viewcontext context)     {         _context = context;     }      public myprincipal appuser     {                 {             return new myprincipal(_context.httpcontext.user claimsprincipal);         }     }      public string controllername     {                 {             return _context.routedata.values["controller"].tostring();         }     } } 

view:

@{ var viewhelper = new viewhelper(viewcontext);} 

a way achieve views?

there better way in mvc 6, supports injecting dependencies on views @inject directive. (the directive @inject ifoo foo allows use in view property named foo of type ifoo)

create new interface iappuseraccessor getting app user, example:

public interface iappuseraccessor {     myprincipal getappuser(); } 

create class appuseraccessor implementing it:

public class appuseraccessor : iappuseraccessor {     private ihttpcontextaccessor httpcontextprovider;     public appuseraccessor(ihttpcontextaccessor httpcontextprovider)     {         this.httpcontextprovider = httpcontextprovider;     }      public myprincipal getappuser()     {         return new myprincipal (                        httpcontextprovider.httpcontext.user claimsprincipal);                 } } 

register new interface in services container adding new entry in configureservices method of startup.cs:

services.addtransient<iappuseraccessor, appuseraccessor>(); 

finally use @inject directive inject iappuseraccessor in views. if add directive in viewimports.cshtml available on every view.

@inject webapplication4.services.iappuseraccessor appuseraccessor 

with pieces above can use on view(s):

@appuseraccessor.getappuser() 

update

if need inspect route values, controller name, can inject iactioncontextaccessor class , use follows:

public appuseraccessor(ihttpcontextaccessor httpcontextprovider, iactioncontextaccessor actioncontextaccessor) {     this.httpcontextprovider = httpcontextprovider;     this.actioncontextaccessor = actioncontextaccessor; }  ...  public string controllername {     { return actioncontextaccessor.actioncontext.routedata.values["controller"].tostring(); }             } 

of course, doesn't appuseraccessor anymore , smells has different responsabilities. @ least needs more appropriate name :)

i double check need controller name for. there might better way accomplish objective. (for example, if need generating new links/urls might use iurlhelper)

accessing viewcontext

looks beta8 has added support injecting viewcontext, although implementation details may change before rc. see this question