Variable usage in Callbacks

Question

Subhiksha 2013-9-26

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/88309-variable-usage-in-callbacks

编辑： Jan 2013-9-26

Hello, I have two callback functions named as file_Callback and loaddataset_Callback

function file_Callback(hObject, eventdata, handles) % hObject handle to file (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) guidata(hObject,handles) ; %end

% --------------------------------------------------------------------

function dataset=loaddataset_Callback(hObject, eventdata, handles) % hObject handle to loaddataset (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) %%Load the file from the user interface

%Initialize variables

proceed = 1;

k=1;

disp(a)

while ( proceed == 1 )

    %Get the path and name of matfile loaded
    [filename,pathname,filterindex]=uigetfile('*.mat');
    filepath = [pathname,filename];
    %Store the path and name in an array
    handles.dataset(k)=cellstr(filepath);

% handles.listbox = '0';

    %%confirm if the dataset loaded is right
    msg = ['You have loaded ',filename,'. Do you want to load an other  dataset of the same subject??'];
    load=questdlg(msg, 'Dataset Loaded');
    load1 = strcmp (load,'Yes');
    %To load another dataset of same subject
    if( load1 == 1 )
        proceed = 1;
        k=k+1;
    else
        proceed = 0;
    end

end

% disp((handles.dataset))

guidata(hObject, handles);

% -------------------------------------------------------------------- %end

I need to declare a variable in file_Callback and use the same variable in loaddataset_Callback.

How to do this??

Thanks in advance

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Jan 2013-9-26

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Answer 1

Jan 2013-9-26

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/88309-variable-usage-in-callbacks#answer_97857

编辑：Jan 2013-9-26

This topic has been discussed repeatedly here. So please search for "share data GUI" in this forum.

A very useful tool is included in the source code you've posted already: guidata. New variables can be appended to the handles struct, while guidata stores and obtains the current struct to / from the GUI.