easyUI datagrid删除行数据bug 解决办法

monthReport.delReport=function(id){
			var selectRows = $('#MonthReportTab').datagrid('getSelections');	
			if(selectRows.length==0){
				$.messager.alert("系统提示","请选择一条数据然后重试！","warning");
				return;
			}else{
				$.messager.confirm("提示", "是否确认要当前所选中的月报？", function(r) {
			    	if (r){
			    		var reportsIds= "";
						for(i=0 ; i < selectRows.length; i++){
							reportsIds += selectRows[i].id;
							reportsIds += ",";
						}
						$.ajax({
							url:"deleteMonthReport.action?monthReport.id="+reportsIds+ "&t="+new Date().getTime(),
							type:'post',
							success:function(data){	
								if(data){					
									$.messager.alert('系统提示', '删除成功!');		
									$('#monthReportdlg').dialog('close');
					 				$('#MonthReportTab').datagrid('reload');
					 				selectRows.length=0;	
								}else{
									$.messager.alert('系统提示', '删除失败!','warning');		
									$('#monthReportdlg').dialog('close');
					 				$('#MonthReportTab').datagrid('reload');
					 				selectRows.length=0;
								}	
							}
						});
			    	}
				})
			}
		}