Define part of an Expression as a variable in c#

Question

I have following code:

public class MyClass
{
   Expression> Criteria {get; set;}
}
public class Customer
{
   //..
   publ         


        

Answer 1

I don't see the benefit of using an Expression here. How about a straight Func?

public class MyClass 
{
    public Func Criteria { get; set; }
}

And then...

var myCustomer = new MyClass
{
    Criteria = (c, s) => c.Name.StartsWith(s)
};

var customer = new Customer { Name = "Bob" };

var x = myCustomer.Criteria(customer, "B");