Question

Here is the situation

public class A {
    public string Prop1 {get;set;}
    public int Prop2 {get;set;}
}

A a = new A(){ Prop1="A", Prop2 = 1}
A b = new A(){ Prop1="B"}

//Merge Two objects into a but only specific properties
a.Prop1 = a.Prop1 != b.Prop1 ? b.Prop1 : a.Prop1; //This part.

//a = {Prop1: "B", Prop2: 1}

Is there a better way to do this? Right now I’ve got 20 properties and I’m just copy/pasting this line with small changes over and over again. In Javascript with jQuery this would just by $.extend(a, b). I know several questions have asked that very question but I’m looking for that specific awful line.

Thanks!!

Answer 1

Since your properties don’t have any logic in their setters, it’s unclear why comparing the old vs. new value matters; in the end, your code’s logic will ensure that the property values in b are always what’s set.

In other words, this would accomplish the same goal:

a.Prop1 = b.Prop1;