In System.Linq.Dynamic.Select (), how to deal with a null object reference in simple form?

I am using dynamic LINQ (System.Linq.Dynamic) (you can find a description here http://dynamiclinq.azurewebsites.net/GettingStarted ).

The following statement works well

Products.Select("new(ProductName, CategoryID.CategoryName as CategoryName)");

      

        
        
        
      

    

But I accidentally discovered that when CategoryID is null, the results are empty. But I suppose it will return a record like:

ProductName = "Wine", CategoryName = "" (or null).

Then I found a way to do it with

Products.Select("new(ProductName, iif(CategoryID==null,\"\",CategoryID.CategoryName) as CategoryName)");

      

        
        
        
      

    

The statement is ugly.

Do you have a better solution?

Thank you in advance,