asp.net - Using Entity Framework with no defined keys -

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i having problems keys when trying make controllers, reading of questions posted in here, , found needed explicitly define key in variable, , did so.. problem still persist , don't know how fix it.

error this:

"entity type 'product' has no key defined, entityset 'products' has no keys defined"

code:

using system; using system.collections.generic; using system.componentmodel.dataannotations; using system.componentmodel.dataannotations.schema; using system.data.entity; using system.linq; using system.web;  namespace mvc_catalogo.models {   public class product {      private string descripcion { get; set; }     private string barras { get; set; }     private string alterno { get; set; }     private double precioc { get; set; }     private double preciop { get; set; }     private string imagen { get; set; }     [key]     private guid productoid { get; set; }     private guid idproveedor { get; set; }     private int activo { get; set; }      public class jomdbcontext : dbcontext     {         public dbset<product> products { get; set; }      }   } }

answer:

i'm not sure if of these issue, might try: 1. making properties public instead of private. 2. matching class name id field. change productoid productid. 3. annotating id field [databasegenerated(databasegeneratedoption.identity] [key]


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