I am trying to build a dashboard, just copying one of the basic ones in Google Analytics. The aim of the game is to get a better understanding of dash. A minimum working example. import dash_html_components as html from dash.dependencies import Input, Output, State, Event app = dash.Dash('test se…

Hey, There’s currently no way to determine which elements triggered an Event unfortunately, so there’s no way to do this with the one callback and two Events. One way you can get around this is to create a function that has a single input, let’s call it do_stuff, and then use it to create separate …

Thanks a lot for the response and sorry for the first example not being able to executer… It does not seem to work. import dash import dash_html_components as html from dash.dependencies import Input, Output, State, Event app = dash.Dash('test setup') app.layout = html.Div([ html.Button([ …

Ah dang, that’s my bad, sorry. I keep forgetting about that limitation of Dash: an element.property can only be targeted by one callback. It’s possible there’s not a way to do this that makes use of the one element. But I I may well be missing a simple workaround. A slightly hacky workaround is to…

@steffenhvid there is a pull request on https://github.com/plotly/dash-html-components/pull/37 which adds an n_previous_clicks property to buttons. This allows you to determine which button was pressed. Hopefully this will be merged soon? @chriddyp

[image] nedned: There’s currently no way to determine which elements triggered an Event unfortunately, so there’s no way to do this with the one callback and two Events. If you’re only interested in determining which element was most recently clicked on, see the solution in Input two or more …

Hi, assuming that you can only click on one button once at a time, you can use the “n_clicks_timestamp” attribute like this. : @app.callback( Output('current_page', 'value'), [Input('buttonA', 'n_clicks_timestamp'), Input('buttonB', 'n_clicks_timestamp')]) def update_output(*args): …

Exactly. For a long list of buttons, I use a utility function like this: def without(remove_these_keys, original_list): return [i for i in original_list if i not in remove_these_keys] def button_was_fired(button_timestamp, other_event_timestamps): return ( len(without([button_time…

How do I write PreventUpdate in this case? For normal n_clicks, I can write if n_clicks1 is None and n_clicks2 is None: raise PreventUpdate Is there any similar syntax for using n_clicks_timestamp for PreventUpdate?

wouldn’t a better option here be to create a radioButton object that works exactly like dcc.RadioItems but looks like buttons. I was optimistic that dbc.ButtonGroup was going to work like this but it doesn’t. It just does a tad better formatting them together. My control has a ButtonGroup of 12 o…

Callbacks, Relation between State and Events - Multiple buttons

Dash Python

chriddyp June 1, 2018, 4:16pm 7

If you’re only interested in determining which element was most recently clicked on, see the solution in Input two or more button - How to tell which button is pressed? - #29 by chriddyp

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Callbacks, Relation between State and Events - Multiple buttons

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