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 Object-Oriented Programming Object Initialization

Posted by Curtis Alcorn
Curtis Alcorn
10,389 Points

If we set the class variables as readonly, how come we are allowed to send arguments to it?

How come we can send arguments to it and set the value, but only THEN are we not allowed to change it? I don't see why we can assign values to it through arguments if it's already read only.

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

I think you're confusing "readonly" with "constant". A "readonly" is intentionally designed to be set during object construction, but then not changed afterwards.

If the value is already known at compile time, you can use a "const" instead to create something that cannot be changed at any time.