How to sort child table doc type by specific column

[Misbah]

I tried this, and it worked

Sort child table

@ccfiel def validate(self): for i, item in enumerate(sorted(self._range, key=lambda item: item.grade), start=1): item.idx = i var idx = 1; frm.doc._grade.sort(function(a,b){ if (a.grade < b.grade){ return -1 } else if ( a.grade > b.grade){ return 1 } return 1; }); frm.doc._grade.map(function(item){ item.idx = idx++; });