function of group by() and split mode

Dear Sir,

I used the dht 5.02 and I have the problem on the function of group by the row and split mode.
I don’t know where is wrong.

Could you help me how to give me the suggestion.
Thand you very muich.

my code is :

myGrid = new dhtmlXGridObject('gridbox');
			myGrid.setImagePath("dht/codebase/imgs/");
			//myGrid.setHeader("日期,銷售佣金,信用卡,顧問佣金");
			myGrid.setHeader("日期,時閒,商店編号,商店名稱,交易編号,銷售收入,推廣收入,佣金,租金,廣告費,年費,會費,物流,運費,快遞,註冊,顧問,其它,退款,完成,未完成,盈利/虧損");
			//myGrid.attachHeader(["#rspan","#rspan","#rspan","#rspan","#rspan","#rspan","Bestseller","Published"]);
			myGrid.setInitWidths("250,250,250,250,250,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100");
			myGrid.enableAutoWidth(true);
			myGrid.setColAlign("left,left,left,left,left,left,left,left,left,left,left,left,left,left,left,left,left,left,left,left,left,left");
			myGrid.setColTypes("ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro,ro");
			
			myGrid.setColSorting("date,str,str,str,str,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed,ed");
			myGrid.customGroupFormat=function(text,count){
				return "Grouped by "+text+", there are "+count+" related records"
			};
			myGrid.splitAt(4);
			myGrid.init();
			
			myGrid.attachFooter("總銷售佣金,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan");
			myGrid.attachFooter("總信用卡費,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan");
			myGrid.attachFooter("總顧問佣金,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan,#cspan");
			myGrid.load("xml/grid_testing_shop_data.xml",function(){
				myGrid.groupBy(3);
			});


Unfortunately the problem cannot be reproduced locally.
Please, note that the splitAt() method should be caled after the init of the grid.
Also, pleas,e try to use the second attribute of the groupBy() method for a correct mask.
For example:
myGrid.groupBy(3,["","","#title","","","","","","","","","","","","","","","","","","",""]);
IF the problem still occurs for you please, open ticket at support.dhtmlx.com and provide with a complete demo, where the problem can be reconstructed.