problem with using if statements

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joanna il 6 Nov 2012

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i have 2 options in popupmenu and both of the options has 2 panels which contain pushbutton. when i select option1, the pushbutton in panel2 is disabled..when i select option2, the pushbutton in panel1 is disabled.

v=get(handles.selectGroup, 'Value');

switch v

    case 1
        set(handles.capturecolorButton,'Enable','off');
        set(handles.ROI2Button,'Enable','on');
    case 2
        set(handles.capturecolorButton,'Enable','on');
        set(handles.ROI2Button,'Enable','off');
    otherwise
end;

what can be corrected?

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Arthur il 6 Nov 2012

Please copy the entire error message you get, we're shooting in the dark here....

joanna il 6 Nov 2012

??? Attempt to reference field of non-structure array.

Error in ==> capture>selectGroup_CreateFcn at 464 v=get(handles.selectGroup, 'Value');

Error in ==> gui_mainfcn at 96 feval(varargin{:});

Error in ==> capture at 42 gui_mainfcn(gui_State, varargin{:});

Error in ==> @(hObject,eventdata)capture('selectGroup_CreateFcn',hObject,eventdata,guidata(hObject))

??? Error using ==> struct2handle Error while evaluating uicontrol CreateFcn

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Arthur il 6 Nov 2012

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https://it.mathworks.com/matlabcentral/answers/52912-problem-with-using-if-statements#answer_64460

You placed the code intothe CreateFcn of te popup. This means the code is only executed when the popup is created, not when you press it. Cut and paste the code into the CallbackFcn of the popup, and it probably works.