Hi , welcome to the Vercel Community!
You should see a code tab or button on the right side unless the answer is only a single code block that is part of the response itself.

What am I doing wrong?
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It seems like the project you are working on is not a web application and hence the code is just one single file. The directory structure is only visible for web applications.
v0 is primarily used for creating full-stack web applications with Next.js. So, while it may work for .cs, it's not the ideal use case.
Understood. Thank you. I wanted to clarify: I'm trying to create a project for WPF Desktop, so "v0.dev" does not support it. Did I understand correctly?
You are right. I'd suggest using AI agents like Cursor or Claude code for this use case because v0 is specifically designed to make amazing web applications.