know which checkbox called the function (on_change)

[pasteluengas]

Hi, suppose i have these checkboxes

ft.DataColumn(ft.Checkbox(value=False, on_change=lambda e: checkbox_changed(kick_pattern, 0))), ft.DataColumn(ft.Checkbox(value=False, on_change=lambda e: checkbox_changed(kick_pattern, 0))), ft.DataColumn(ft.Checkbox(value=False, on_change=lambda e: checkbox_changed(kick_pattern, 0))), ft.DataColumn(ft.Checkbox(value=False, on_change=lambda e: checkbox_changed(kick_pattern, 0))), ft.DataColumn(ft.Checkbox(value=False, on_change=lambda e: checkbox_changed(kick_pattern, 0))),

checkbox_changed function is:

def checkbox_changed(pattern, val):
# Insert here something here that depends to the value of the checkbox that called it

I need to know which checkbox called the function, to get the .value from it... Any idea?

Thanks

[iron3oxide]

The event e your lambdas catch will hold a reference to the control that emitted it. You could therefore do something like

callback_fn = lambda e: checkbox_changed(kick_pattern, e.control.value)
...
ft.DataColumn(ft.Checkbox(value=False, on_change=callback_fn)),
...