asp.net mvc - mvc 6 ef7 Customer table object is null in AppDbContext - there is data in the database -

when enter url localhost:xxx/api/customers, showed "is null". looked @ variable in debugger mode, show table customers object null;

remember there data in table. idea?

customer class

public class customer {     public string id { get; set; }     public string lname { get; set; } } 

appsettings.json

{ "data": { "defaultconnection": {   "connectionstring": "server=.\\sqlexpress;database=ef7;trusted_connection=true;" } } 

appdbcontext

public class appdbcontext : dbcontext {     public dbset<customer> customers;     protected override void onmodelcreating(modelbuilder builder)     {         builder.entity<customer>().haskey(c => c.id);         base.onmodelcreating(builder);     }  } 

customerscontroller

[route("api/[controller]")] public class customerscontroller : controller {     appdbcontext _ctx { get; set; }     public customerscontroller([fromservices] appdbcontext ctx)     {         _ctx = ctx;     }     // get: api/values     [httpget]     public jsonresult get()     {         if(_ctx.customers!=null)             return json(_ctx.customers.tolist());         else {             return json("is null");         }     } } 

startup.cs

public class startup {     iconfigurationroot configuration;     public startup(ihostingenvironment env)     {         var builder = new configurationbuilder()             .addjsonfile("appsettings.json")             .addjsonfile($"appsettings.{env.environmentname}.json", optional: true)             .addenvironmentvariables();         configuration = builder.build();     }     public void configureservices(iservicecollection services)     {         services.addmvc();         services.addentityframework().addsqlserver().adddbcontext<appdbcontext>(o=>o.usesqlserver(configuration["data:defaultconnection:connectionstring"]));     }      // method gets called runtime. use method configure http request pipeline.     public void configure(iapplicationbuilder app)     {         app.useiisplatformhandler();         app.usemvc();     }      // entry point application.     public static void main(string[] args) => webapplication.run<startup>(args); } 

never mind, dbset field instead of property. changed dbset customer {get;set}