How to returns to the current folder when i execut my gui?

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Abel Romero 2018-5-19

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https://ww2.mathworks.cn/matlabcentral/answers/401589-how-to-returns-to-the-current-folder-when-i-execut-my-gui

评论： Image Analyst 2018-5-19

Hello everybody, I have a problem with my gui. All the figs and functions are saved in a defined directory. If I execute the GUI and then i change the current folder since the matlab editor the GUI does not works. Are there any solution to return to the current folder where my gui is saved?

I try to use cd, but when i run the GUI and i change the current folder, where it is saved, it does not work.

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Answer 1

Image Analyst 2018-5-19

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https://ww2.mathworks.cn/matlabcentral/answers/401589-how-to-returns-to-the-current-folder-when-i-execut-my-gui#answer_320973

在 MATLAB Online 中打开

GetExecutableFolder.m

Simply keep track of the known folder, like in a field of handles, like handles.dataFolder. Then when you want to do anything with any files, put the base filename into full file and read it in:

fullFileName = fullfile(handles.dataFolder, 'whatever.dat');

You shouldn't need to know the folder where your program is. But if you really do, and you have Windows, see the attached function.

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Abel Romero 2018-5-19

I think that i don't ask correctly the question. I will try to put an example:

All my figs and functions are saved in this path, for example: C:\Users\Abel\Documents\MATLAB\TFG_definitivo2\Project\Functions.

Then i execute the GUI, while it is executing i change the current folde in the comand window to: C:\Users\Abel\Documents\MATLAB\TFG_definitivo2\Project

Then i push a button in the GUI that is executing and it does not work and generates the following error: Undefined function or variable 'Welcome'.

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)Welcome('load_project_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback.

So, the problem is that when i run the gui in the folder that i've saved it and i change the current folder it does not works.

Image Analyst 2018-5-19

在 MATLAB Online 中打开

So it has nothing to do with the folder and everything to do with some function or variable called Welcome not being defined. It's evidently in a different folder than your main program and you do not have a path set to it. You can add a path either with the Set Path tool on the tool ribbon, or in your OpeningFcn of your GUI code with this code:

folder = 'C:\Users\Abel\Documents\MATLAB\TFG_definitivo2';
% Add all functions in that folder and subfolders of it to the search path so it will find the functions.
addpath(genpath(folder));

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