App Designer class properties visibility

Hi all,

I am just learning about classes in Matlab. This morning I had a custom class defined and when using an object of that class in App Designer I would get an interactive list of the objects properties after writing the '.' after the object name. Pretty much like you do for any control on the GUI (example):

However, for some reason, I stopped getting this list for my custom class. Not knowing the reason, I stripped the class down until the bear minimum, thinking it might be a parse problem in the class. But still no success. So eventually I tried the auto generated class template of Matlab and created a basic class called Class1 and tried to use this one in App Designer, but still, I get no interactive list of Properties. My class looks like this:

classdef Class1
    properties (Access = public)
        Property1
    end
    
    methods
        function obj = Class1(inputArg1,inputArg2)
            obj.Property1 = inputArg1 + inputArg2;
        end
        
        function outputArg = method1(obj,inputArg)
            outputArg = obj.Property1 + inputArg;
        end
    end
end

And my app designer code looks like this (just a basic figure, with nothing added:

    % Callbacks that handle component events
    methods (Access = private)

        % Code that executes after component creation
        function startupFcn(app)
            Module = Class1(1,2);
            Module.
        end
    end

So at this point, I would expect after the '.' the list showing me 'Property1' to pop up, but it does not appear.

Any ideas? Thanks.

Answer 1

[Cristian Berceanu]

I found it seems myself the answer to this question, I'll just post it here, in case others run in the same trouble. In order for the drop-down list of properties and methods to be available in Code View, you must fist declare the Module as a property of the app and indicate its class like this:

    properties (Access = public)
         Module                     Class1;
    end

Then you can further use it in the code and access its public properties and methods:

Best regards,

Cristian