frappe.ui.form.on("Sales Invoice", {
onload: function (frm, cdt, cdn) {
let btn = document.createElement('a');
btn.innerText = 'Refresh';
btn.className = 'grid-upload btn btn-xs btn-default';
frm.fields_dict.items.grid.wrapper.find('.grid-upload').removeClass('hide').parent().append(btn);
btn.addEventListener("click", function(){
});
}
})
Thanks for hint @magic-overflow
. This is what Iām looking for.