Add just one checkbox node to a TREE (app designer)

Hello! Is it possible to add just one checkbox node to a standard TREE? I'm using the app designer.

Thank you in advance

Answer 1

[Veronica Taurino]

I created a workaround for this problem: I used the icon property to simulate the checkbox with two images (black square: checkbox on, white square: checkbox off). A context menu on the requested node (callback hide/show) updates the icon of the node. It works. Any suggestions to improve the code?

In my app design I have something like:

%% stuff...


cm  = uicontextmenu(app.UIFigure);
path="...\BLACK.png";
imgStyle = uistyle("Icon",path);
addStyle(app.TreeResults, imgStyle, "node", node)
uimenu(cm,"Text","Hide/Show polygons","MenuSelectedFcn",{@HIDE_callback, app.UIFigure, HandlePolygons});  


%% stuff...
                

The callback to update the icon:

function HIDE_callback(~, ~, f, HandlePolygons)
    
    if strcmpi(HandlePolygons.Visible,'off')      
        path="...\BLACK.png";
    else    
        path="...\WHITE.png";      
    end
    node= f.CurrentObject ;    
    imgStyle = uistyle("Icon",path);
    addStyle(app.TreeResults, imgStyle, "node", node)        
    HandlePolygons.Visible='off';
end

[Eric Delgado]

Wow... super nice! :)

Answer 2

[Eric Delgado]

No.

Each type of Tree object supports a different set of properties. For a full list of properties and descriptions for each type, see the associated property page.

• If style is the default, 'tree', see Tree Properties.
• If style is 'checkbox', see CheckBoxTree Properties.