How can I simplify C# code that sets multiple properties of an object?

Question

I have code that looks like this:

itemView.Question.AnswersJSON = itemView.Answer.ToJSONString();
itemView.Question.Modified = DateTime.Now;
itemView.Question.Mo         


        

Answer 1

If Question is a class (not a struct), then you could assign it to a local variable, and edit that:

Question q = itemView.Question;
q.AnswersJSON = itemView.Answer.ToJSONString();
q.Modified = DateTime.Now;
q.ModifiedBy = User.Identity.Name

You won't even have to assign q back to itemView.Question.

This is because classes in C# are reference types. If you assign an instance of a reference type to a local variable, or pass it to a function, then changes to that instance will be reflected everywhere you have a reference to that same instance.

Edit

Note that the situation might be a bit murky if Question is a property of itemView, rather than a field. Depending on how it is implemented, you might have to assign q back to Question. In such a case, this code is still much preferred to avoid calling the Question property's getter method repeatedly.