ui.update_action_button
ui.update_action_button(id, *, label=None, icon=None, disabled=None, session=None)
Change the label and/or icon of an action button on the client.
Parameters
id: str
-
An input id.
label: Optional[str] = None
-
An input label.
icon: TagChild = None
-
An icon to appear inline with the button/link.
disabled: Optional[bool] = None
-
If
True
, disable the button making it unclickable; ifFalse
, the button will become enabled and clickable. session: Optional[
Session
] = None-
A Session instance. If not provided, it is inferred via get_current_session.
Note
The input updater functions send a message to the client, telling it to change the settings of an input object. The messages are collected and sent after all the observers (including outputs) have finished running.
The syntax of these functions is similar to the functions that created the inputs in the first place. For example, input_numeric and update_numeric take a similar set of arguments.
Any arguments with None
values will be ignored; they will not result in any changes to the input object on the client.
For update_radio_buttons, update_checkbox_group, and update_select, the set of choices can be cleared by using choices=[]
. Similarly, for these inputs, the selected item can be cleared by using selected=[]
.
See Also
input_action_button
Examples
#| standalone: true
#| components: [editor, viewer]
#| layout: vertical
#| viewerHeight: 400
## file: app.py
from shiny import App, Inputs, Outputs, Session, reactive, req, ui
app_ui = ui.page_fluid(
ui.input_action_button("update", "Update other buttons and link"),
ui.br(),
ui.input_action_button("goButton", "Go"),
ui.br(),
ui.input_action_button("goButton2", "Go 2", icon="🤩"),
ui.br(),
ui.input_action_button("goButton3", "Go 3"),
ui.br(),
ui.input_action_link("goLink", "Go Link"),
)
def server(input: Inputs, output: Outputs, session: Session):
@reactive.effect
def _():
req(input.update())
# Updates goButton's label and icon
ui.update_action_button("goButton", label="New label", icon="📅")
# Leaves goButton2's label unchanged and removes its icon
ui.update_action_button("goButton2", icon=[])
# Leaves goButton3's icon, if it exists, unchanged and changes its label
ui.update_action_button("goButton3", label="New label 3")
# Updates goLink's label and icon
ui.update_action_link("goLink", label="New link label", icon="🔗")
app = App(app_ui, server)