Given a list of products with Category and Price, how do you sort products by category ascending and then by price descending?

hard🚀 Application Q9 of Q15

C Sharp (C#) - LINQ Fundamentals

Given a list of products with Category and Price, how do you sort products by category ascending and then by price descending?

Aproducts.Sort(p => p.Category, p => p.Price);

Bproducts.OrderByDescending(p => p.Category).ThenBy(p => p.Price);

Cproducts.OrderBy(p => p.Price).ThenByDescending(p => p.Category);

Dproducts.OrderBy(p => p.Category).ThenByDescending(p => p.Price);

Step-by-Step Solution

Solution:

Step 1: Identify sorting order for each property
Category ascending, Price descending.
Step 2: Use OrderBy for category and ThenByDescending for price
Correct chaining is OrderBy then ThenByDescending.
Final Answer:
products.OrderBy(p => p.Category).ThenByDescending(p => p.Price); -> Option D
Quick Check:
OrderBy then ThenByDescending for mixed order sorting [OK]

Quick Trick: Chain OrderBy then ThenByDescending for mixed ascending/descending [OK]

Common Mistakes:

MISTAKES

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