Dash-datatable callback no response

Dash Python
1

I built a Dash with graph, range slider and DataTable…, every callbacks work fine, but the @callback for DataTable does not have response, seems not being reached:

            dbc.Col(dt.DataTable(id="table_selected_buses",
                                     columns=[{"name": i, "id": i} for i in ['Bus Name', 'Bus ID', 'Gas', 'Nulear',
                                                                             'Coal', 'PV', 'RTPV', 'Wind',
                                                                             'Hydro', 'CSP', 'Total', ]
                                              ],
                                     data=[{}],
                                     style_as_list_view=True,
                                     style_header=table_header_style,
                                     page_size=8,
                                     )
                        ),

@app.callback(
Output(‘table_selected_buses’, ‘data’),
[Input(‘day-range3,’, ‘day’)])

def update_table(dayrange):
print(dayrange)
df2=dfbusload.head(10)
print(df2)
return df2.to_dict(‘records’)

both prints here are for testing, nothing printed out. I have update all Dashes to current.

Thank you for your help.

Pengchu

2

I suspect day-range3 is a slider object?
In that case the input should be ‘value’ as in

@app.callback(Output(‘table_selected_buses’, ‘data’),
                     [Input(‘day-range3’, ‘value’)])

‘day’ is not an attribute of a slider, so your callback does not receive any input in your current version.

3

Still, no response from @callback for ‘update_table’ after changing ‘day’ to ‘value’. Other callbacks work fine with ‘value’ from rangeslider.

4

I tried a couple of tests, seems that callback update DataTable does not take value input from rangeslider. That causes no response from table update function. Someone has the same problem?