MATLAB: GUI development.

gui

Hello.

I am getting the following error for every GUI I try to execute. Can someone please explain what is wrong?

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

Error in ==> myAdder>add_pushbutton_Callback at 134 a = get(handles.input1_editText,'String');

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

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

??? Error while evaluating uicontrol Callback

I would look at handles.input1_editText. It is likely that somewhere handles got overwritten and is no longer a structure array.

In the callback function of the Push Button, you can use val = get(handles.popupmenu,'Value') and then use an if else statement like:

if val==1

A = get(input1_editText,'String');

B = get(input2_editText,'String');

total = str2num(A)/str2num(B);

elseif val==2

 A = get(input1_editText,'String');
C = get(input3_editText,'String');
total = str2num(A)*str2num(C);

and so on.. Hope this helps!

HTH,

Arnaud