When I select all of the content in my MATLAB Grader solution file and then hit "Delete", nothing happens. Why is that?

I would like to delete some/all of my solution code when working on a MATLAB Grader problem in MATLAB Online. After selecting the code that I want to delete and hitting DELETE, nothing appears to happen. Why is that?

Answer 1

[Jeff Alderson]

This will happen if there are any locked/read-only lines in the solution file. A locked line cannot be selected and deleted. If any highlighted text contains any part of a locked line, that whole block of text cannot be deleted. This is the same behavior in MATLAB Online as it is for the editor in the MATLAB Grader today.