Need to get several indexes when doing a box/ lasso selection from a plotly graph

[vhfgosselin]

Description When using the new feature to integrate plotly charts, we do get the index of the selected point on the chart. However, when performing a box or lasso selection, the selected_state is empty instead of returning a list of indexes corresponding to the selected points.

How to reproduce You can check using the following code below

• A code fragment

  from taipy.gui import Gui 
  import plotly.express as px
  
  df = px.data.gapminder()
  df_first = df[df['year']==2007].reset_index(drop=True)
  bubble_fig = px.scatter(df_first, x="gdpPercap", y="lifeExp",size="pop", hover_name="country", log_x=True, size_max=60)
  
  selected_state = []
  
  def on_change(state,var,val):
   print("val = ", val)
   if var == 'selected_state':
      print(state.selected_state)
      print("selected state", val, "row:", state.df_first.iloc[val])
  
  md = """
  <|chart|figure={bubble_fig}|selected={selected_state}|>
    ```
  Gui(md).run(port=4563)
  
  
  

Expected behavior selected_state variable shouldn't be empty, it should contain a list of indexes corresponding to the selected points.

Runtime environment Taipy develop branch Windows 11

[FredLL-Avaiga]

Works for me

selected state [103, 104, 109] 
row:           country continent  year  lifeExp       pop    gdpPercap iso_alpha  iso_num
103      Portugal    Europe  2007   78.098  10642836  20509.64777       PRT      620
104   Puerto Rico  Americas  2007   78.746   3942491  19328.70901       PRI      630
109  Saudi Arabia      Asia  2007   72.777  27601038  21654.83194       SAU      682

[FredLL-Avaiga]

What I see is that there are 2 events fired on box selection:

• the first one contains the list of indexes
• the second one is empty ...

[vhfgosselin]

Yes, not sure why we get 2 events here. This happens for both box and lasso selection.