How to create subgrid and to load data into it from server only when its subrow is opened for the first time? Preserve option is set to true.
Hello.
Her you can find the example where the subgrid data loads from the external json on subrow expanding:
https://snippet.dhtmlx.com/03ndqrqt
Yes, but that example does not work. Add preserve option and remove expand call and you see in browser console that data is immediately loaded to ALL subgrids. That must not happen.