问题
Does anyone know how to put the enableCors into the controller on vb.net. i am working along with a pluralsight course and tried a code translator with no luck. my attempt is below.
<EnableCors(origins: "http://localhost:53080", headers: "*", methods: "*")>
回答1:
The correct syntax would be something like this:
<EnableCors("http://localhost:53080", "*","*")>
The C# example appears to use named parameters. VB.NET supports that too, however the EnableCorsAttributes has properties and contractor arguments that only differ by letter casing. This confuses the compiler as to whether you are attempting to set the named parameter or the property in the attribute. So, in this case we can just drop the named arguments all together.
回答2:
In Vb.net this <EnableCors("http://localhost:53080", "*","*")> will work, but, you have to add on NuGet the Microsoft.AspNet.WebApi.Cors and Microsoft.AspNet.Cors. You need to add Imports System.Web.Http.Cors on the class.
回答3:
Remove any empty line between the http://localhost:53080", "*","*")> and the declaration of the controller class.
来源：https://stackoverflow.com/questions/36270626/enablecors-for-vb-net