Returns the widget that disabled this. It might be this or one of its parents all the way up the chain, or null if the widget is not disabled by anything. You can check disabledReason on the return value (after the null check!) to get a hint to display to the user.
Returns the widget that disabled this. It might be this or one of its parents all the way up the chain, or null if the widget is not disabled by anything. You can check disabledReason on the return value (after the null check!) to get a hint to display to the user.