How do I make a system to add and delete tabs in a GUI with App Designer?

I am trying to add a tab system to my GUI where a menu button will allow you to add new tabs. Deleting tabs is simple with the delete() function, I can't figure out how to add buttons. I used the following callback to try to add them, but I get the error "Unrecognized property 'new_tab' for class 'tab_test'."

function AddTabMenuSelected(app, event)
    app.new_tab = uitab(app.TabGroup);
    app.new_tab.Title = "New tab";
end

I have been building this with App Designer using callbacks.

Does anyone know how to go about implementing this, or know if this is even possible?

Thanks!

Answer 1

[Mohammad Sami]

This is because in app designer you need to define the property names before you can use them in the code. I would suggest you add the property new_tabs first before calling it in code. You also have issues around managing adding and deleting multiple tabs. While you use new_tabs as a cell array of tabs, you will need to manage how do you keep track of tabs and whether they are deleted.