Evaluate a lambda expression

Question

I have a class

public class Person
{
    public int PersonId { get; set; }
    public string Name { get; set; }
}

And I have a lambda expression of the Person type

Expression<Func<TModel, TProperty>> expression

Who contains this value

{model => model.Name}

How can I evaluate that lambda expression against an instance of Person, to extract the Name value attribute?

Answer 1

You can compile the expression into a delegate and pass in a Person object:

Func<Person, string> getName = expression.Compile();
string name = getName(person);