Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Lucas Nordström
Lucas Nordström
2,230 Points

Anonymously typed objects, how and why?

Create a variable named mysteryBird and assign to it an anonymously typed object that has a property named Color with a value of "White" and another property named Sightings with a value of 3. How and why do you use anonymously typed objects?

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

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

For the how, there's a couple of examples of doing this at time index 5:24 in the Selecting, Projecting and Anonymous Types video.

And why you might do this is that it is a handy and compact way to create and store object data. You'll be seeing several more examples of this being done as the course progresses.