Edit text as input in GUI

Hello,

I have a GUI (created in GUIDE), and I want to be able to have a edit text that I assign values to it and when I hit on other buttons, that value will be used. The problem is that it's not actually a number, but a set of numbers, i.e:

 1:2:33

or even multiple inputs such as:

 1:5,22:52, 66:68 etc

I have tried the below code but didn't work

 function edit3_Callback(hObject, eventdata, handles)
 % hObject    handle to edit3 (see GCBO)
 % eventdata  reserved - to be defined in a future version of MATLAB
 % handles    structure with handles and user data (see GUIDATA)
 % Hints: get(hObject,'String') returns contents of edit3 as text
 %        str2double(get(hObject,'String')) returns contents of edit3 as a 
          double
 handles.back= str2double(get(hObject,'String'))

any good suggestions? TYIA

Answer 1

[Image Analyst]

Don't do anything in the edit field callback. Do everything in the button callbacks where you want to use the edit field. For example in the callback for button1:

editText = get(handles.edit3,'String');
% Now parse it with sscanf(), allwords, or whatever.
myNumberArray = ......% whatever...

Find allwords here: allwords()

[tony karamp]

so the edit3 callback function will remain empty?

[Image Analyst]

Yes, or maybe some default code. You don't need to add any code of your own to that function.

[tony karamp]

I add the code then as it is?

 editText = get(handles.edit3,'String');
 myNumberArray = sscanf(editText);

Thanks!

[Image Analyst]

You're welcome. sscanf() usually takes a string and a format specifier. Mark as Accepted if we're all done here.

[tony karamp]

I made the modifications to the mfile, but when I try to run the GUI I get an error saying:

 Error using ==> sscanf
 Not enough input arguments.
 Error in ==> DSSGUI>startbutton_Callback at 156
 fharmArray = sscanf(FeditText);
 Error in ==> gui_mainfcn at 66
        feval(varargin{:});
 Error in ==> DSSGUI at 42
    gui_mainfcn(gui_State, varargin{:});
 Error in ==>  @(hObject,eventdata)DSSGUI('startbutton_Callback',hObject,eventdata,guidata(hObject)) 
??? Error while evaluating uicontrol Callback

[tony karamp]

I used the eval function after all and works perfectly...

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#Why_is_it_advised_to_avoid_using_the_.22eval.22_function.3F