How to open current working directory if a certain folder doesn't exists in the directory?

Question

Sanjay Yadav 2017-1-17

0
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https://ww2.mathworks.cn/matlabcentral/answers/320823-how-to-open-current-working-directory-if-a-certain-folder-doesn-t-exists-in-the-directory

评论： Stephen23 2021-2-14

So here is my code on a pushbutton callback:

prompt = {'Enter Patient Name or ID:'};
title = 'Input';
num_lines = 1;
defaultans = {'Patient'};
answer = inputdlg(prompt,title,num_lines,defaultans);
handles.file = cellstr(answer{1});
%Creating a new folder by the name of Patient's name that user entered
folder = handles.file{1}
guidata(hObject, handles);
mkdir(folder);

By far its working fine, now in a different pushbutton callback I want to display an error if the folder of same name already exists

folder = handles.file{1}
if exist(folder,'dir')
      winopen(folder);
else
      winopen(pwd);
end

But it shows error : Reference to non-existent field 'file'. Please Help. Thanks in advance

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Rena Berman 2017-1-20

(Answers Dev) Restored Question.

Stephen23 2021-2-14

http://web.archive.org/web/20210214185521/https://www.mathworks.com/matlabcentral/answers/320823-how-to-open-current-working-directory-if-a-certain-folder-doesn-t-exists-in-the-directory

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Answer 1

Image Analyst 2017-1-17

2
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/320823-how-to-open-current-working-directory-if-a-certain-folder-doesn-t-exists-in-the-directory#answer_250954

Evidently your first function didn't execute so that file is not a new field attached to handles. Or guidata() didn't work, but that seems doubtful. Examine handles in the second function before it bombs (set a breakpoint) and make sure that file is a field that is still attached to handles.