Error with uigetfile in App Designer when changing directories

I have the following code to read in a csv file:

% Allow the user to select any CSV file
[file, path] = uigetfile('*.csv');
if isequal(file,0)
    % User selected cancel
    return;
else
    comp_fn = readtable(file);
    handles.comp_fn = comp_fn;
    guidata(hObject, handles);
end

I am receiving an error when I traverse directories using the uigetfile UI to select the file. If the requested file is in the same directory when the UI opens, it loads correctly. If I change to a different directory and select a valid file, I receive a 'Unable to find or open file XXX' error (when I just selected it).

What am I missing? Do I have include the path to that file? If so, how is this done in the above code? I tried searching for this answer, without any luck.

Thanks in advance.

Answer 1

[Voss]

Use the full path, not just the file name:

comp_fn = readtable(fullfile(path,file));

[Scotty Mac]

That fixed the issue. Many thanks!!