目前是否支持 JqGrid 中的多分组

我目前正在尝试在jqGrid中实现多分组，但似乎无法正确。请参阅下面的代码：

colNames:['Programme','Course', 'Fee Type','Description','Apply', 'Amount', 'Discount', 'Discounted Amt','GATE Amount'], 
                    colModel:[ 
                        {name:'programme',index:'programme', width: 25}, 
                        {name:'moduleInstance',index:'moduleInstance', width:30
                        },
                        {name:'feeType',index:'feeType', width:15
                        },                           
                        {name:'description',index:'description', width:15
                        },
                        {name:'isApplicable',index:'isApplicable', width:4, editable:true, edittype:'checkbox', editoptions: { value:"True:False"},formatter: "checkbox", formatoptions: {disabled : false} 
                        },
                        {name:'amount',index:'amount', width:5
                        },                   
                        {name:'discount',index:'discount', width:5, editable:true},
                        {name:'discountAmount',index:'discountAmount', width:8},
                        {name:'gateAmountCovered',index:'gateAmountCovered', width:8, editable:true}
                    ],sortname: 'moduleInstance',
                    grouping:true,
                    groupingView : {
                        groupField : ['programme', 'moduleInstance'],
                        groupColumnShow : [false, false],
                        groupText : ['<b>{0} - {1} Item(s)</b>', '{0}']
                    },

这只在标题上显示节目标题，而不显示另一个。谁能告诉我我在这里做错了什么？