ROW DELETE
For event handler function signature means, here an example for jqGridAddEditAfterSubmit
on(eventName: "jqGridAddEditAfterSubmit",
handler: (
eventObject: JQueryEventObject,
jqXhr: JQueryXHR, postdata: Object | string,
editOrAdd: "edit" | "add") => void)
You will only need to pay attention to the handler part (bold), and ignore the rest.
Basically, it translates to:
function jqGridAddEditAfterSubmitHandler(event, jqXhr, postData, "edit") {
...
}
You will most likely only care about postData, which is the row of data to be submitted.
In addition, on https://demo.phpcontrols.com/, please find Set Custom Event Handler demo, in source code, you can see how it is used.