当我们在smartClient中更新SelectionAppearance时，样式不会在列表网格中更新

Question

我是使用JavaScript的SmartClient的新手。当我创建一个listGrid时，使用了一个backgroundColor为“ red”的基类，然后动态地将SelectionAppearance从“ rowStyle”更改为“ checkbox”，其中listbackgroundColor从红色更改为蓝色（默认），这是我的摘录

     var groupAppliedDiscList = isc.ListGrid.create({
        ID: "groupAppliedDiscList",
        selectedRecordsArr: [],
        selectionType: "simple",
        name: "groupAppliedDiscList",
        height: "100%",
        width: "100%",
        showHeader: false,
        selectionAppearance: "rowStyle",
        canResizeFields: true,
        virtualScrolling: false,
        showRecordComponents: true,
        showRecordComponentsByCell: true,
        canRemoveRecords: false,
        recordComponentPoolingMode: "recycle",
        showBackgroundComponents : true,
        baseStyle: "cell_1",
        canSelectCells: false,
        backgroundColor: "transparent",
        showRowNumbers: false,
        fields: [
            {name: "Image",type: "text",showIf: "false"},
            {name: "ItemDescription", type: "text",showIf: "false"},
            {name: "Quantity", type: "text",showIf: "false"},
            {name: "Price", type: "text",showIf: "false"},
            {name: "Disc", type: "text",showIf: "false"},
            {name: "ExtPrice", type: "text",showIf: "false"},
            {name: "DiscountedPrice", type: "text",showIf: "false"},
            {name: "discountItemLine", width: "*", align: "left"}
        ]
       });        

预先感谢， Swathi。