How Programmatically set child table coloum value?

Frappe Framework Customization
,
1

I have three child tables inside my parent Doctype.
that child table have three coloums, for example a b and c
if enter a = 5 and b = 5, it will automatically calculate and set c to 10
How do I do this??

my child table doctype is like Addition
child table field name are add1 add2 and add3

2

Hy @nelson_d

Try this code

frappe.ui.form.on('Child Doctype', {
	a: function(frm,cdt,cdn) {
		table_ttl(frm,cdt,cdn);
		auto_cal(frm);
	},
	b: function(frm,cdt,cdn) {
		table_ttl(frm,cdt,cdn);
		auto_cal(frm);
	}
});
	function table_ttl(frm,cdt,cdn){
		var row = locals[cdt][cdn];
    	frappe.model.set_value(cdt,cdn,"c",row.b+row.a)
	}

I hope it’s working
Thank You!