C Sharp (C#) - Properties and Encapsulation
Why is it important to place validation logic before assigning the value to the backing field in a property setter?
Why is it important to place validation logic before assigning the value to the backing field in a property setter?
hard🧠 Conceptual Q10 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand the purpose of validation order
Validation must happen before assignment to avoid storing bad data.Step 2: Identify consequences of wrong order
If assignment happens first, invalid data could be stored before exception is thrown.Final Answer:
To prevent invalid data from being stored in the field -> Option BQuick Check:
Validate before assign to protect data integrity [OK]
Quick Trick: Validate first, then assign to keep data clean [OK]
Common Mistakes:
MISTAKES- Assigning before validation allowing bad data
- Thinking validation improves speed
- Expecting setters to return values
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