How can I enable/disable a item in a dropdown in matlab app designer?

Question

Eric 2024-3-19

回答： Ramtej 2024-3-20

How do i make an item from a drop down disable to the user. Where its greyed out and can't be selected? Is that possible in matlab?

Thanks,

Eric

Answer 1

Ramtej 2024-3-20

Hi

Currently MATLAB does not provide a direct way to disable individual dropdown items.

You can try an alternative workaround as shown below:

Add the style to the drop-down component item to change its background color to grey.

s1 = uistyle("BackgroundColor","#808080");
addStyle(app.DropDown,s1,"item",1);

Check the selected item in the dropdown's callback function and revert to a previous selection or display a message if a "disabled" item is selected.

Note: This workaround does not make the the option unclickable.