Public Class AnonymousProjectionSelector 
   Inherits IdeaBlade.Linq.SelectorCollection(Of ProjectionSelector,AnonymousProjectionSelector)
   Implements IdeaBlade.Core.IProjectionSelector 

Dim instance As AnonymousProjectionSelector

public class AnonymousProjectionSelector : IdeaBlade.Linq.SelectorCollection<ProjectionSelector,AnonymousProjectionSelector>, IdeaBlade.Core.IProjectionSelector  

public ref class AnonymousProjectionSelector : public IdeaBlade.Linq.SelectorCollection<ProjectionSelector,AnonymousProjectionSelector>, IdeaBlade.Core.IProjectionSelector  

var selector = new AnonymousProjectionSelector()
  .Combine("Category.Name", "CatName")
  .Combine("Category.Description", "CatDesc"); 
var rootQuery = EntityQuery.Create(typeof(Product), _em1); 
var query = rootQuery.Select(selector); 
var results = query.Execute();