How to hide child fileds?

[keerthana_2001]

I tried the below post is not working:

@benjaminrosary

frappe.ui.form.on(“Sales Order”,{ before_load:function(frm) {
var df=frappe.meta.get_docfield(“Sales Order Item”, “rate”,frm.doc.name);
df.hidden=1;
frm.refresh_fields();
}
});

Hi Lokesh
I achieved this by using before_load event. Thanks Your Kind help.