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C# Querying With LINQ Now You're Querying Selecting, Projecting and Anonymous Types

Calvin Secrest
Calvin Secrest
24,815 Points

Your matchingBirds variable should have two elements - but it actually has 3

Create a variable named matchingBirds and assign it a LINQ query on the birds variable that have the same Color property as the mysteryBird object. In the query, return an anonymous type with a property named BirdName and assign to it the Name property of the birds. Not sure what I am doing wrong.

I can not not figure out the syntax for this challenge!

CodeChallenge.cs
var birds = new[] 
{ 
    new { Name = "Pelican", Color = "White" }, 
    new { Name = "Swan", Color = "White" }, 
    new { Name = "Crow", Color = "Black" } 
};

var mysteryBird = new { Color = "White", Sightings = 3 };
var matchingBirds = from b in birds where mysteryBird.Color == "White" select new { BirdName = b.Name};

2 Answers

Steven Parker
Steven Parker
231,248 Points

:point_right: Your syntax is good, but you're comparing the wrong values.

You have this conditional expression: where mysteryBird.Color == "White" ā€” but the mystery bird's color is always white.

What the challenge asks for are the "birds ... that have the same Color property as the mysteryBird". That would be:
Ā  Ā  where b.Color == mysteryBird.Color

var birds = new[] 
{ 
    new { Name = "Pelican", Color = "White" }, 
    new { Name = "Swan", Color = "White" }, 
    new { Name = "Crow", Color = "Black" } 
};

var mysteryBird = new { Color = "White", Sightings = 3 };
var matchingBirds = from b in birds where b.Color == mysteryBird.Color select new { BirdName = b.Name};