CODEWITHSUNDEEP
user-interfacematlabpanelvisible
Wlikotae
Wlikotae

Reputation: 21

Change panel property in GUI

I tried many things and looked with thousant of keywords thru google and stackoverflow and I literally always fall on the very same (useless for me) solutions.

Here's my problem:

I have a GUI with a uibuttongroup "Youpi" with two radio buttons "visible" and "invi". I have an other uipanel "Tralala" .

I create the following code:

function Youpi_SelectionChangeFcn(hObject,eventdata)
switch get(eventdata.NewValue,'Tag') % Get Tag of selected object.
    case 'visible'
        set(handles.Tralala, 'visible', 'on');
    case 'invi'
        set(handles.Tralala, 'visible', 'off');
    otherwise
        % Code for when there is no match.        
end

It does not work and I get always the same error message (see below). I made these two tests to figure out where the problem is from: _I changed the case by a disp function : when I toggle my two radio buttons, the messages are displayed properly. It does not come from SelectionChangeFcn function. _In the very first function, called "GUI_OpeningFcn" , I input set(handles.Tralala, 'visible', 'off'); and it works properly (e.g. I don't see the panel if I run the GUI).

Do you know why the panel handle disappears from one function to an other ?

Here's the error message :

??? Undefined variable "Tralala" or class "handles.Tralala".

Error in ==> MaccorGUI>Youpi_SelectionChangeFcn at 272
        set(handles.Tralala, 'visible', 'on');

Error in ==> hgfeval at 63
        feval(fcn{1},varargin{:},fcn{2:end});

Error in ==> uitools.uibuttongroup.childAddedCbk>manageButtons at 80
    hgfeval(cbk, source, evdata);

??? Error while evaluating uicontrol Callback

Please help me find a solution.

Thank you.

Upvotes: 0

Views: 6044

Answers (3)

issam
issam

Reputation: 1

I created a group panel with a button each time I was one of the button selects an image he m'aficher each button has an image thank you for helping me to find the source code I'm doing it uipanel4_SelectionChangeFcn function (hObject, EVENTDATA, handles) % hObject handle To The selected object in uipanel4 % With The followings EVENTDATA structure fields (see UIBUTTONGROUP) % EventName: string 'SelectionChanged' (read only) % OldValue: handle Of The Previously selected object or empty if none selected WAS % NewValue: handle Of The Currently selected object % handles structure with handle and user data (see GUIDAT) if RadioButton1 == get (handles.radiobutton1, 'value', 1) Set (handles.axes4, 'because') else radioButton2 == get (handles.radiobutton2, 'value', 1) Set (handles.axes4 'man')

Upvotes: 0

Wlikotae
Wlikotae

Reputation: 21

Ok I found the solution. I don't think it is the best one but at least it works.

Before "switch" i added the following command:

a = guidata(get(hObject,'parent'));

And in the switch instead of using "handles" I use "a".

note: it works also with guihandles ( you can have access to handles.output this way)

Upvotes: 2

Azim J
Azim J

Reputation: 8290

You need to add handles to the selection change function definition

function Youpi_SelectionChangeFcn(hObject,eventdata, handles)

Upvotes: 0

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