How to find checkboxes in panel component in MATLAB app designer?

% Find all the checkbox objects belonging to features
            checkboxes = findobj(app.features, 'Style', 'checkbox');
            

In this code I'm trying to find all checkboxes that are in the panel "app.features". I don't get an error message, but I can't find any objects either. I get an 0x0 GraphicsPlaceholder. I only want to find the checkboxes that are in this panel, not in the whole app. How do I do this?

I attached the app, the section I'm talking about is in callbackfunction btnDrawButtonPushed(app, event).

Answer 1

[Cris LaPierre]

Try this instead

checkboxes = findall(app.features,'type','uicheckbox');

[Kevin Gjoni]

Now i get an error further down in my code:

% Initialize an empty cell array to store the names of the selected checkboxes
selected_names = {};

% Loop through the checkboxes and check which ones are selected
for i=1:numel(checkboxes)
    if get(checkboxes(i), 'Value') == 1
        % If the checkbox is selected, add its name to the cell array
        selected_names{end+1} = get(checkboxes(i), 'String');
    end
end

it says

Unrecognized property String for class CheckBox.

I want to store the names of only the selected checkboxes as I need them for something else in my code.

[Cris LaPierre]

As the message states, there is no String property for checkboxes. The checkbox properties documentation page contains a list of all the properties of a checkbox. There, you will see the property name is 'Text' instead of 'String'.

Try this instead.

selected_names{end+1} = checkboxes(i).Text;