Dropdown

selectors.Dropdown

Creates a Dropdown selector. Selection is limited to a predefined list of options.

Parameter	Description	Default
selector_name	The name of the selector. It must be unique.	-
options	Options available for this selector.	-
options_names	Human readable counterpart of options. It will be str(options) if not defined.	-
label	The label for the selector. If not passed, the selector shows its `selector_name`.	-
default_value	If selected option is invalid or not defined, use this value. Must be the option name.	-
ignore_user_input	If passed True, picks default_value instead of the selected value.	`False`
run_on_change	If passed False the selector will not trigger execution on change.	`True`
placeholder	Short hint displayed in the input field before the user enters a value.	-
help_text	Tooltip help message displayed while the input is focused.	-
width	Custom selector width.	-
isDisabled	disable this selector.	`False`
block_uuid	Optional value to specify the block that will be executed when the selector triggers execution.	(current block uuid)

Examples

sel = selectors.Dropdown("dropdown_0", options=['apple', 'pear'], options_names=['Apple', 'Pear'], label='Select a value')
sel.render()
print("You have selected", sel.value)

from IPython.display import display, HTML
elements =[]

options = ['foo', 'bar', 'zoooo', 'zaaa aa aar']

dropdown = selectors.Dropdown(
  'dropdown-1',
  options=options,
  label='Drowpdown with helptext',
  help_text='Custom help message',
)
elements.append(dropdown)

elements_html = "".join(
    f'<tr><td>{element}</td><td>{element.value}</td></tr>'
    for element in elements
)

display(HTML(f"""
<table>
    <td></td><td>clicked</td>
    {elements_html}
</table>
"""))

See also​

See also