easyui datagrid columns field 如何支持一個或多個子屬性

  

//如果只需要一個子屬性從value出發
 {field:'customer',title:'會員手機',width:100,
            formatter: function(value,row,index){
                if (value.phone){
                    return value.phone;
                } else {
                    return '';
                }
           }
        },


//如果需要多個子屬性同時顯示(customer為一個類)從row出發
//自定義該類下屬性name為customerName
{field:'customerName',title:'昵稱',width:100,
            formatter: function(value,row,index){
                if (row.customer){
                    if(row.customer.name != '')
                        return row.customer.name;
                    else{
                        return '';
                    }
                } else {
                    return '';
                }
           }
        },

//自定義該類下屬性sex為customerSex
 {field:'inventorySex',title:'性別',width:100,
            formatter: function(value,row,index){
　　　　　　　　　if (row.customer){
                    if(row.customer.sex!= '')
                        return row.customer.sex;
                    else{
                        return '';
                    }
                } else {
                    return '';
                }

           }
        },