Variable usage in Callbacks

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

[Jan]

Please format your code properly when you want to encourage others to read it.

Answer 1

[Jan]

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.