What is required keyword on properties?
PICTURE THIS: HOW TO EXPLAIN IT
IdeaC#
HowWhat happens inside
Why they askShows real use
Simple meaning
It forces object initializers to set the property.
WHY — C# instead of guessing?
Why interviewers care about C#:
C# questions separate people
who only read docs from people who shipped.
Keep it short, concrete,
and tied to .NET work.
Stay structured
Name the idea, why it exists, then one short example.
Close cleanly
End with when you use it and one common pitfall.
STEPS — What happens step by step?
Before you speak the answer, walk the interviewer through these steps:
- 1It forces object initializers
to set the property.
- 2Why it exists
Helps DTOs stay complete.
- 3How it works
Combine with init for immutability.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Say this line
“Helps DTOs stay complete.”
Break into beats
HelpsDTOsstaycomplete
Speaking order
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Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
It forces object initializers to set the property. Helps DTOs stay complete.