Is there a particular reason LinqKit's expander can't pick up Expressions from fields?

Question

I\'m using LinqKit library which allows combining expressions on the fly.

This is a pure bliss for writing Entity Framewok data acess layer because several express

Answer 1

I created improved version of Mic answer:

if (input == null)
    return input;

var field = input.Member as FieldInfo;
var prope = input.Member as PropertyInfo;
if ((field != null && field.FieldType.IsSubclassOf(typeof(Expression))) ||
    (prope != null && prope.PropertyType.IsSubclassOf(typeof(Expression))))
    return Visit(Expression.Lambda>(input).Compile()());

return input;

Main advantage is removal DynamicInvoke that have big overhead and calling Invoke only when I really need it.