本地过滤的数据不会进入Jqgrid的警报框中

Question

Thanx To Oleg我在这里添加了代码来获取Jqgrid中的特定列数据，在本地过滤记录，但它没有显示在警告框中过滤的数据。在警告框中，它显示数据的总数量和数据值的空字符串... 这是我的代码......

 var oldFrom = $.jgrid.from, lastSelected;

            $.jgrid.from = function (source, initalQuery) {
                var result = oldFrom.call(this, source, initalQuery),
                old_select = result.select;
                result.select = function (f) {
                    lastSelected = old_select.call(this, f);
                    return lastSelected;
                };
                return result;
            };

这里我正在加载JqGrid ...

loadComplete: function () {
                            this.p.lastSelected = lastSelected;
                        }

下面是我的按钮点击功能......

 $("#go").click(function () {
                        var filteredData = $grid.jqGrid('getGridParam', 'lastSelected'), i, n, ids = [],
                idName = $grid.jqGrid('getGridParam', 'localReader').price;
                        if (filteredData) {
                            for (i = 0, n = filteredData.length; i < n; i++) {
                                ids.push(filteredData[i][idName]);
                            }
                            alert("tolal number of filtered data: " + n + "\n" +
                    "ids of filtered data:\n" + ids.join(', '));
                        }
                    });

这里我想取出我在网格中添加的价格列的值..

 { name: 'price', index: 'price', width: 100, sortable: true, align: 'center',formatter: 'currency' }

.Plz Guys帮助我.. Thanx提前...