Gantt chart multi select not working in react js

Gantt
#1

gantt chart multi select function is not working in react js

#2

Hello,
To activate multiselect function, you need to connect multiselect extension. To do that, add the following string into the Gantt.js file:

import 'dhtmlx-gantt/codebase/ext/dhtmlxgantt_multiselect.js'

Here is the demo:

https://files.dhtmlx.com/30d/50440ca5983496bed6855aeec626bb04/react+multiselect.zip

If that doesn’t help you, please send me your react package and I will see what might be wrong.