i have two buttons to search different directories but the second button cant add more variables to the guidata

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steven Garcia 2014-10-3

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评论： Star Strider 2014-10-4

function pushbutton5_Callback(hObject, eventdata, handles)

    symbol=char(92);
    dirControl = uigetdir;
    dirControl= strcat(dirControl,symbol);
    controlfiles=dir([dirControl '*.img']);
        for i = 1:numel(controlfiles)
        file= strcat(dirControl,controlfiles(i).name,',1');
        imcell{1,1} =(file);
        end
        handles.imcellG1=imcell;
        handles.DirectorioG1=dirControl;
        guidata(hObject, handles)

function pushbutton6_Callback(hObject, eventdata, handles)

     symbol=char(92);
    dirControl = uigetdir;
    dirControl= strcat(dirControl,symbol);
    controlfiles=dir([dirControl '*.img']);
        for i = 1:numel(controlfiles)
        file= strcat(dirControl,controlfiles(i).name,',1');
        imcell{1,1} =(file);
        end
        handles.imcellG2=imcell;
        handles.DirectorioG2=dirControl;
        guidata(hObject, handles2)

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steven Garcia 2014-10-3

the result is Undefined function or variable "imcell".

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Answer 1

Star Strider 2014-10-3

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I didn’t run your code, but just from observation it seems that if ‘imcell’ has not been created, your ‘controlfiles’ array has zero elements. (Something about either assignment of ‘dirControl’ is probably not correct.) The loop is not iterating.

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steven Garcia 2014-10-4

编辑：steven Garcia 2014-10-4

yes you right my files in the second directory are wrong

Star Strider 2014-10-4

It is my pleasure to help!

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Answer 2

Geoff Hayes 2014-10-4

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Steven - in your second callback, look closely at the guidata call

guidata(hObject, handles2)

The second parameter is named handles2 whereas all of your code is updating handles. (I'm surprised that an error isn't thrown because of the invalid variable name.) Just change this line to

guidata(hObject, handles);

and try again.