I have over a 100 checkboxes. I want to check them with one line of code in Appdesigner the same way that I did in Matlab 2013.. However the same line of code does not work in Appdesigner. Here is the code from 2013 Matlab

set(findobj('Style','checkbox','-regexp','Tag','checkbox'),'Value',1)

[Luna]

Could you please share the error message?

[Randy Gill]

There is no error message with the above code. I see the issue after looking at Luna's answer.

Answer 1

[Luna]

I have tried this, created 5 checkboxes and a button for check all.

You can get the struct fieldnames and filter by its name CheckBox.

It is not an efficient way manually assign Tags for each checkbox so left the names as Matlab creates automatically.

classdef app1 < matlab.apps.AppBase

    % Properties that correspond to app components
    properties (Access = public)
        UIFigure        matlab.ui.Figure
        CheckBox        matlab.ui.control.CheckBox
        CheckBox2       matlab.ui.control.CheckBox
        CheckBox3       matlab.ui.control.CheckBox
        CheckBox4       matlab.ui.control.CheckBox
        CheckBox5       matlab.ui.control.CheckBox
        checkallButton  matlab.ui.control.Button
    end

    methods (Access = private)

        % Button pushed function: checkallButton
        function checkallButtonPushed(app, event)        
            fieldNames = fieldnames(app); % gets the name list for all uicomponents as cell array
            allCheckBoxNamesList = fieldNames(contains(fieldNames,'CheckBox','IgnoreCase',false)); % gets only the names contains "CheckBox" specifically.
            for i = 1:numel(allCheckBoxNamesList) % a for loop for set all checkbox components' values as true 
                app.(allCheckBoxNamesList{i}).Value = true; % dynamic naming to reach elements under my app. 
            end
        end
    end

[Randy Gill]

Thanks Luna!

[Luna]

Your welcome :)