Conditional operator in Linq Expression causes NHibernate exception

Question

I\'m trying to implement search functionality in an ASP.NET MVC 2 application. I create an expression based on criteria entered by the user:

public ViewResul         


        

Answer 1

What about dynamically create your query? Like this:

var customers = CustomerRepository.AllEntities();

if (!forename.IsNullOrEmpty())
    customers = customers.Where(p => p.Forename == forename);
if (!familyname.IsNullOrEmpty())
    customers = customers.Where(p => p.FamilyNames.Any(n => n.Name==familyname));
if (dob.HasValue)
    customers = customers.Where(p => p.DOB == dob);

I don't know if this works but I think this could be more efficient.