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# C# Objects Inheritance Throwing Exceptions

hakan Gülay
hakan Gülay
8,489 Points
Posted by hakan Gülay
hakan Gülay
8,489 Points

about "this"

I dont get what "this" refers here. Can someone help me please?

1 Answer

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

At about 1:18 in the video, you can hear the explanation: "In the case of a constructor method, "this" refers to the object that's being constructed."

So in this case it refers to the new Maplocation object. Since the base constructor has already established the values of "X" and "Y", the object can be passed to the map.OnMap method to validate the coordinates.