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

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Jeff Alderson 2024-4-1

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https://ww2.mathworks.cn/matlabcentral/answers/2101471-when-i-select-all-of-the-content-in-my-matlab-grader-solution-file-and-then-hit-delete-nothing-ha

回答： Jeff Alderson 2024-4-1

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?

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Answer 1

Jeff Alderson 2024-4-1

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https://ww2.mathworks.cn/matlabcentral/answers/2101471-when-i-select-all-of-the-content-in-my-matlab-grader-solution-file-and-then-hit-delete-nothing-ha#answer_1434456

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.