MATLAB Answers

Dot indexing is not supported for variables of this type+ App designer

2 views (last 30 days)
Medical Imaging
Medical Imaging on 28 Jul 2020
Commented: Medical Imaging on 29 Jul 2020
At below line, I am getting error: "Dot indexing is not supported for variables of this type." what could be the possible reason?
app.idx = listdlg('ListString', {sFOLDERS(:).name}, 'SelectionMode', 'single', ...
'ListSize', [160,90]*4);
here sFOLDER is defined as;
app.sFOLDERS = dir(PTH);
app.sFOLDERS = app.sFOLDERS(...
[app.sFOLDERS.isdir] & ...
~strcmp({app.sFOLDERS.name},'.') & ... % to remove entry '.'
~strcmp({app.sFOLDERS.name},'..') ); % and entry '..'

  0 Comments

Sign in to comment.

Accepted Answer

Jon
Jon on 28 Jul 2020
Edited: Jon on 28 Jul 2020
Usually when I unexpectedly get that error message it is because the object is empty. Are you sure there are folders that match your criteria. Otherwise maybe app.sFOLDERS is empty. You can explicitly check using the isempty function
Also, maybe I didn't read your code carefully enough but in that first line
app.idx = listdlg('ListString', {sFOLDERS(:).name}, 'SelectionMode', 'single', ...
'ListSize', [160,90]*4);
should that be app.sFOLDERS(:).name, rather than just sFOLDERS(:)?
By the way, you can format your code nicely in your question by using the code button in the Answers toolbar

  1 Comment

Medical Imaging
Medical Imaging on 29 Jul 2020
Thank you for the suggestion. I believe app.sFOLDERS(:).name should be there. I will try and check on that. The code section seems good to incorporate in message section. Appreciated.

Sign in to comment.

More Answers (0)

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!