how to update dropdown Selection options dynamically ?

[morningstarsabrina]

Hello,

I want to update a dropdown Selection options after the user click on a button with a new list of options but I'm struggling to do this, any ideas ?

Thanks

[falkoschindler]

As mentioned here, you can simply manipulate the options of a ui.select and call update afterwards:

select = ui.select(['A', 'B', 'C'])

def add_option():
    select.options.append('D')
    select.update()

ui.button('Add option', on_click=add_option)

[morningstarsabrina]

thanks it work.
I only think its confusing, since there are set_visibility() and set_value() methods so I expected a method to change options.

[falkoschindler]

Good point. We should add such method.

[falkoschindler]

On second thought, a set_options method would only be useful for replacing the whole options list or dictionary. For manipulating the existing object this does not help.
But we should add a remark about updating the options in the documentation.

[morningstarsabrina]

perfect thanks