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I recently came across this while going through someone else's code

var name = Product.Buyer?.FirstName + " " + Product.Buyer?.LastName;

What does this(?.)mean in c#

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  • (I've tried to find a duplicate, but failed. Not so easy to search for, although I'm sure there are very similar questions.) Commented Sep 15, 2016 at 6:01
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    Jon Skeet Commented on my question :) . Wow Commented Sep 15, 2016 at 6:09

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The operator ?. is called Null-conditional Operators, which is introduced in C# 6.0.

Used to test for null before performing member access (?.) or index (?[) operation. These operators help you write less code to handle null checks, especially for descending into data structures.

see the documentation and an example here

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