Microsoft.AspNet.WebApi.OData Setting

SampleController.cs

//using に追加
using System.Web.Http.OData;
using System.Web.Http.OData.Query;

namespace Sample.Controllers {
    public class SampleController: ApiController {
        
        //属性付加
        [EnableQuery]
        public IQueryable<User> Get(){
            //IQueryable 
            return new SampleEntities().Users.AsQueryable();
        
        }
        
    }
}

WebApiConfig.cs

//using に追加
using System.Web.Http.OData.Extensions;

namespace Sample{
    
    public static class WebApiConfig {
    
        public static void Register(HttpConfiguration config) {
            
            //いろいろ設定
            
            //OData
            config.AddODataQueryFilter();
            
        }
    
    }
}