Generic unboxing expressions <Func <T, object >> for expression <Func <T, TResult >>

Question

As mentioned in the header, I have an expression in which the type of the result is “stored” in object , which may be all of my domain classes. Is there a way to get a specific expression (unboxing)?

Answer 1

If I understand your question correctly, then you can look for Expression.Convert

 Expression<Func<T,object>> original = // ... something Expression<Func<T,TResult>> converted = Expression.Lambda<Func<T,TResult>>( Expression.Convert(original.Body,typeof(TResult)), original.Parameters); 

Demo on ideon.