ASP.NET 5 (i.e. Core 1.0) Immutable Configuration -


i can't asp.net 5 (i.e. core 1.0) work immutable configuration classes.

let me demonstrate first using mutable class.

config.json

{   "name": "lou",   "age": 30 }

config.cs (mutable)

   public class config     {         public string name { get; set; }         public int age { get; set; }     }

registration in startup.cs

public void configureservices(iservicecollection services) {     var configbuilder = new configurationbuilder()         .addjsonfile("config.json");      var config = configbuilder.build();     services.configure<config>(config);      services.addmvc(); }

the code above works , values of config.name , config.age expected.

but once change config's property setters private, no longer set configuration builder:

public class config {     public string name { get; private set; } // == null     public int age { get; private set; } // == 0 }

i have expected asp.net 5 use reflection , set properties asp.net 4, instead of ignoring them. missing something?

i created sample project demonstrate: https://github.com/johnnyoshika/mvc6-immutable-config master branch uses mutable config class while immutable-config branch uses immutable config class.

the configurationbinder object doesn't set private properties: https://github.com/aspnet/configuration/blob/ba1d9b4cbc363db9318f201f08fbfecc72e7922b/src/microsoft.extensions.configuration.binder/configurationbinder.cs#l64-l82

here's issue tracking that: https://github.com/aspnet/configuration/issues/394

one way workaround create interface getters that's implemented config code. then, can use in code.


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