What is a view model?
PICTURE THIS: DATABASE INDEX
Simple meaning
It is a class shaped for one screen, not the raw database entity.
WHY — Models instead of guessing?
Why interviewers care about Models:
who only read docs from people who shipped.
and tied to .NET MVC work.
Name the idea, why it exists, then one short example.
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 is a class
shaped for one screen, not the raw database entity.
- 2It can flatten joins
and hide fields the UI must not show.
- 3I map entities to
view models in the controller or a service.
- 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:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
It is a class shaped for one screen, not the raw database entity. It can flatten joins and hide fields the UI must not show.