修改Ext grid 单元格

    this.AddGridColumns = [
    { text: "产品Id",  150, dataIndex: 'MaterialId', sortable: false, hidden: true },
    { text: "产品名称", flex: 1, dataIndex: "MaterialName", sortable: false },
    { text: "数量（千克）",  150, sortable: false, dataIndex: 'BasicCount', renderer: DateRenderer, editor: { xtype: 'numberfield', minValue: 0} },
    { text: "数量",  150, sortable: false, dataIndex: 'CommodityCount', renderer: DateRenderer, editor: { xtype: 'numberfield', minValue: 0} },
    { text: "单位", sortable: false, header: '单位数量', dataIndex: 'Unit',  100, field: { xtype: 'combobox', typeAhead: true, triggerAction: 'all', editable: false, selectOnTab: true, store: [['微克', '微克'], ['毫克', '毫克'], ['克', '克'], ['千克', '千克'], ['吨', '吨']], lazyRender: true, listClass: 'x-combo-list-small'}}];
    this.AddGridFields = [{ name: "MaterialId" }, { name: "MaterialName" }, { name: "BasicCount" }, { name: "CommodityCount" }, { name: "Unit"}];
    this.AddGridStore = Ext.create('Ext.data.Store', {
        fields: myThis.AddGridFields,
        autoLoad: true,
        proxy: {
            extraParams: {
                operate: 'LoadData_TempPProductOrder',
                str: ''
            },
            type: 'ajax',
            url: myThis.url,
            reader: {
                type: 'json',
                root: 'rows'
            }
        },
        fields: myThis.AddGridFields,
        remoteSort: true
    });
    this.AddGrid = Ext.create("Ext.grid.Panel", {
        autoScorll: true,
        height: 298,
        tbar: [{ text: '添加产品', iconCls: 'icon-add',
            handler: function () {
                myThis.popupWindowMaterialMessage.show();
            }
        }, { text: '删除产品', iconCls: 'icon-delete',
            handler: function () {
                var selrows = myThis.AddGrid.getSelectionModel().getSelection();
                myThis.AddGridStore.remove(selrows);
                var nodes = myThis.AddGrid.getView().getNodes();
                var tempArr = [];
                if (nodes.length != 0) {
                    for (var i = 0; i < nodes.length; i++) {
                        tempArr.push(nodes[i].children[1].children[0].innerHTML);
                    }
                    myThis.PProductOrderIDS_Temp = tempArr.join(',');
                } else if (nodes.length == 0) {
                    myThis.PProductOrderIDS_Temp = '';
                }
            }
        }],
        plugins: [
        Ext.create('Ext.grid.plugin.CellEditing', {
            clicksToEdit: 2
        })
    ],
        iconCls: 'icon-grid',
        store: myThis.AddGridStore,
        selModel: new Ext.selection.CheckboxModel(),
        columns: myThis.AddGridColumns
    });
    myThis.AddGrid.on('edit', function (editor, e) {
        if (e.value == null || e.value == undefined || e.value == "") {
            e.record.set("BasicCount", 1);
            e.record.set("CommodityCount", 1);
            e.record.commit();
            myThis.AddGrid.getView().refresh();
            Ext.Msg.alert('提示', '请输入正确的数量！');
        }
        else {
            ////BasicCount CommodityCount   Unit
            var nodes = myThis.AddGrid.getView().getNodes();
            for (var i = 0; i < nodes.length; i++) {
                
                var unitNum =myThis.GetUnitNum(e.record.data.Unit);
                debugger
                var CommodityCount = e.record.data.CommodityCount;

                var BasicCount =  CommodityCount/ unitNum ;
                e.record.set("BasicCount", BasicCount);
                e.record.set("CommodityCount", CommodityCount);
                e.record.commit();
                myThis.AddGrid.getView().refresh();
            }
        }

    });