Form / Dropdown
Use dropdowns to allow users to choose between available choices.
from h2o_wave import main, app, Q, ui
choices = [
ui.choice('A', 'Option A'),
ui.choice('B', 'Option B'),
ui.choice('C', 'Option C', disabled=True),
ui.choice('D', 'Option D'),
]
choices_dialog = [ui.choice(str(i), f'Option {i}') for i in range(1, 102)]
@app('/demo')
async def serve(q: Q):
if q.args.show_inputs:
q.page['example'].items = [
ui.text(f'dropdown={q.args.dropdown}'),
ui.text(f'dropdown_multi={q.args.dropdown_multi}'),
ui.text(f'dropdown_disabled={q.args.dropdown_disabled}'),
ui.text(f'dropdown_dialog={q.args.dropdown_dialog}'),
ui.text(f'dropdown_popup_always={q.args.dropdown_popup_always}'),
ui.text(f'dropdown_popup_never={q.args.dropdown_popup_never}'),
ui.button(name='show_form', label='Back', primary=True),
]
else:
q.page['example'] = ui.form_card(box='1 1 4 7', items=[
ui.dropdown(name='dropdown', label='Pick one', value='B', required=True, choices=choices),
ui.dropdown(name='dropdown_multi', label='Pick multiple', values=['B', 'D'], required=True,
choices=choices),
ui.dropdown(name='dropdown_disabled', label='Pick one (Disabled)', value='B', choices=choices,
disabled=True),
ui.dropdown(name='dropdown_dialog', label='Pick multiple in dialog (>100 choices)', values=['1'],
required=True, choices=choices_dialog),
ui.dropdown(name='dropdown_popup_always', label='Always show popup even when choices < 100', value='A',
required=True, choices=choices, popup='always'),
ui.dropdown(name='dropdown_popup_never', label='Never show popup even when choices > 100', value='1',
required=True, choices=choices_dialog, popup='never'),
ui.button(name='show_inputs', label='Submit', primary=True),
])
await q.page.save()