addRowData
官方說明：
| Method | parameters | Returns |
|---|---|---|
| addRowData | rowid,data, position, srcrowid | true on success, false otherwise |
Description:
Inserts a new row with id = rowid containing the data in data (an object) at the position
specified (first in the table, last in the table or before or after the row specified in srcrowid).
The syntax of the data object is: {name1:value1,name2: value2…} where name is the name of the
column as described in the colModel and the value is the value. <br>This method can insert
multiple rows at once. In this case the data parameter should be array defined as
[{name1:value1,name2: value2…}, {name1:value1,name2: value2…} ] and the first option rowid should
contain the name from data object which should act as id of the row. It is not necessary that
the name of the rowid in this case should be a part from colModel.
參數有4個，分別爲，新插入的行的rowid，該行的數據（也可以一次性插入多行數據），插入數據的位置，這裏通常有first，last，before，after這幾個選項，分別表示插到首，尾，前，後等位置.最後一個參數srcrowid是當position爲before或after時，需要指定的參照rowid.
一般而言，我們都是直接插到尾端.
$("#productList").addRowData(rowid, josnData, "last");
