datatable.options.progress.callback

datatable.options.progress.
callback
=
value
source

This option controls the custom progress-reporting function.

Parameters

return
function

Current callback value. Initially, this option is set to None.

value
function

New callback value. If None, then the built-in progress-reporting function will be used. Otherwise, the value specifies a function to be called at each progress event. The function should take a single parameter p, which is a namedtuple with the following fields:

  • p.progress is a float in the range 0.0 .. 1.0;

  • p.status is a string, one of 'running', 'finished', 'error' or 'cancelled';

  • p.message is a custom string describing the operation currently being performed.