.net - How can I use VB.Net extension methods in a C# project -

-

i have legacy vb.net class library includes extension methods, 1 of this:

namespace extensions     public module ormextensions          <extension()>         public function todomainobjectcollection(byref objects ormcollection(of ormobject)) domainobjectcollection             return objects.asqueryable().todomainobjectcollection()         end function          <extension()>         public function todomainobjectcollection(byref objects iqueryable(of ormobject)) domainobjectcollection             dim doc new domainobjectcollection()             each o in objects                 doc.add(o.todomainobject())             next             return doc         end function     end module end namespace

to use these extensions in vb have import extensions.ormextensions. have project, in c# depends on vb 1 extensions , can't them work. ormextensions isn't available , using namespace vbproject.extensions doesn't make extensions available.

there multiple projects depend on vb project , ideally extensions should available of them.

i've done fair bit of googling haven't been able turn using vb extension methods in c#. assume issue they're required in module, haven't been able confirm that.

i'd rather not duplicate extension methods everywhere they're required(especially in our unit test project, in c#).

you should not using byref.

vb.net (apparently) supports extension methods on ref parameters; c# (rightfully) not.

a byref (ref in c#) parameter allows method assign new instance variable or field passed caller.
should used.


Comments

Post a Comment

Popular posts from this blog

java - Jmockit String final length method mocking Issue -

-
using jmockit 1.2 jar, trying mock string's length method getting unexpected invocation exception: failed: test java.lang.illegalstateexception: missing invocation mocked type @ point; please make sure such invocations appear after declaration of suitable mock field or parameter @ stringdemo.testa$1.<init>(testa.java:17) @ stringdemo.testa.test(testa.java:13) i using testng: @test public void test() throws exception { new expectations() { @mocked("length") string astring; { astring.length(); result = 2; } }; system.out.println(a.showa("test")); } } actual class a: public class { public static int showa(string str){ int a= str.length(); return a; } } this wrong way of recording expected results. shouldn't mock , record string's length() method, record showa() instead. here solution @suppresswarnings("unused&qu
Read more

asp.net - Razor Page Hosted on IIS 6 Fails Every Morning -

-
i have simple page in intranet uses razor/asp fetch single record table , display it, plus few graphic, dashboard display. meaning, no user intervention other first time open ie internal url. the problem having every morning ie displays "page not found or network error" message. refresh page, , it's stuck , doesn't display anything. try different pc, open ie internal url , it's stuck... ...until following: login server hosting page run inetmgr go web sites, etc right click on page that's giving me problem , select browse at moment, error message: server error in '/' application. -------------------------------------------------------------------------------- type of page not served. description: type of page have requested not served because has been explicitly forbidden. extension '.cshtml' may incorrect. please review url below , make sure spelled correctly. requested url: /application/dashboard.cshtml ---------------
Read more

c++ - wxwidget compiling on windows command prompt -

-
can please guide me on method,as how compile wxwidget using windows command prompt or msys. [i can't seem find on wxwiki/wxwidget official book/anywhere else] i have compiled wxwidget instructions have provided (using msys). from searching on internet seems 1 can (maybe?) through use of makefile (is correct?) if yes: directory & how should link wx libraries in makefile if no: way besides makefile? i know can use ide's code::block , make life simpler prefer compile using command prompt/msys. thanks in advance.
Read more