JsGrid -自动增量ID

$("#grid").jsGrid({
    width: "100%",
    height: "400px",
    autoload: true,
    editing: true,
    inserting: true,
    sorting: true,
    paging: true,
    pageSize: 10,
    pageButtonCount: 5,
    deleteConfirm: "Are you sure?",
    controller: {
        loadData: function(filter) {
            return $.ajax({
                type: "GET",
                url: "/api/data",
                data: filter
            });
        },
        insertItem: function(item) {
            return $.ajax({
                type: "POST",
                url: "/api/data",
                data: item
            });
        },
        updateItem: function(item) {
            return $.ajax({
                type: "PUT",
                url: "/api/data",
                data: item
            });
        },
        deleteItem: function(item) {
            return $.ajax({
                type: "DELETE",
                url: "/api/data",
                data: item
            });
        }
    },
    fields: [
        { name: "id", type: "number", title: "ID", width: 50 },
        { name: "name", type: "text", title: "Name", width: 150 },
        { name: "age", type: "number", title: "Age", width: 50 },
        { type: "control" }
    ]
});