DataTables warning: table id=dataTable - Requested unknown parameter 'acceptId' for row 0. For more

重點內容
DataTables warning: table id=dataTable - Requested unknown parameter ‘acceptId’ for row 0. For more information about this error, please see http://datatables.net/tn/4

使用jquery.datatable時發生上面錯誤,配置如下:

table = $("#dataTable").dataTable({
                        "scrollY": "400px", //高度
                        "scrollX": true, //左右滾動條
                        "ordering":false,//thead上的排序按鈕
                        "bLengthChange": false,//分頁條數選擇按鈕
                        "bProcessing": true,//顯示加載中
                        "bInfo": false,//頁腳信息顯示
                        "searching":false,//搜索輸入框顯示
                        "sPaginationType": "full_numbers",//分頁顯示樣式
                        "paging":true,//
                        "sAjaxSource": '<%= basePath %>sellcar/getSellCarOrderList',
                        "bProcessing" : true,
                        "bServerSide" : true,
                        "oLanguage": {  
                                    "sLengthMenu": "每頁顯示 _MENU_  條",  
                                    "sZeroRecords": "沒有找到符合條件的數據",  
                                    "sProcessing": "我也是醉了，正在加載數據...",  
                                    "sInfo": "當前第 _START_ - _END_ 條　共計 _TOTAL_ 條",  
                                    "sInfoEmpty": "沒有有記錄",  
                                    "sInfoFiltered": "(從 _MAX_ 條記錄中過濾)",  
                                    "sSearch": "搜索：",  
                                    "oPaginate": {  
                                        "sFirst": "首頁",  
                                        "sPrevious": "前一頁",  
                                        "sNext": "後一頁",  
                                        "sLast": "尾頁"  
                                    }  
                        },
                        "aoColumns": [
                        //{ "sDefaultContent": ' '},
                        { "mData":"brandName",'sClass':'left',
                            "mRender":function(data,type,full) {
                                var cusId = full.customerId;
                                var sellNo = full.sellNo;
                                var content = "<td><input type='checkbox' name='batchAllocated' id='batchAllocated' value='"+cusId+"' sell_no='"+sellNo+"'></td>";
                                return content;
                            }
                        },
                            { "mData":"brandId",
                            "mRender":function(data,type,full){
                                if(full.carBrand!=null){
                                    return full.carBrand.brandName;
                                };
                                return "";
                            }
                        },
                        { "mData":"serieId",
                            "mRender":function(data,type,full){
                                if(full.carSerie!=null){
                                    return full.carSerie.serieName;
                                };
                                return "";
                            }
                        },
                        { "mData":"customeId",
                            "mRender":function(data,type,full){
                                if(full.customer!=null){
                                    return full.customer.userName;
                                };
                                return "";
                            }
                        },
                        { "mData":"phoneNo"},
                        { "mData":"createdFormat"},
                        { "mData":"sellStatus",'sClass':'left',
                            "mRender":function(data,type,full) {
                                var sellStatus = full.sellStatus;
                                var content = "";
                                if(sellStatus==0){
                                    content = "待估車";
                                }else if(sellStatus==10){
                                    content = "估車成功";
                                    if(full.recordStatus == "wlr"){
                                        content = "估車成功，未錄入";                               
                                    }else if(full.recordStatus == "ylr"){
                                        content = "已錄入";
                                    }
                                    if(full.item !=null){
                                        var item = full.item;
                                        if(item.carStatus == "ysh"){
                                            content = "通過審覈";
                                            if(item.carOnSale == 0){
                                                content = "待上架";
                                            }else if(item.carOnSale ==1){
                                                content ="上架";
                                            }else if(item.carOnSale == 2){
                                                content = "下架";
                                            }else if(item.carOnSale == 3){
                                                content = "已售";
                                            }else if(item.carOnSale == 4){
                                                content = "申請下架";
                                            }
                                        }else if(item.carStatus =="dsh"){
                                            content = "待審覈";
                                        }else if(item.carStatus == "wsh"){
                                            content = "未通過審覈";
                                        }
                                    }
                                }else if(sellStatus==20){
                                    content = "重新估車";
                                }else if(sellStatus == 30){
                                    content = "估車失敗，結束";
                                }else if(sellStatus == 40){
                                    content = "無效信息";
                                }
                                return content;
                            }
                        },
                        { "mData":"acceptId",
                            "mRender":function(data,type,full){
                                if(data !=null){
                                    if(full.acceptUser !=null){
                                        return full.acceptUser.userName;
                                    }
                                }
                            }
                        },
                        { "mData":"carStatus",'sClass':'left',
                            "mRender":function(data,type,full) {
                                var content = "<a href='javascript:void(0);' class='show_info' info_id='"+full.sellNo+"'>查看</a>";
                                return content;
                            }
                        },
                        { "mData":"isAllocated",'sClass':'left',
                        "mRender":function(data,type,full) {
                                var isAllocated = full.isAllocated;
                                var content = "";
                                if(isAllocated==0){
                                    content = "<a href='javascript:void(0);' class='change_info' info_id='"+full.sellNo+"' cus_id='"+full.customerId+"'>分配</a>";
                                }else{
                                    content = "<a href='javascript:void(0);' class='change_info' info_id='"+full.sellNo+"' cus_id='"+full.customerId+"'>重新分配</a>";
                                }
                                return content;
                            }
                        }],
//                      "bLengthChange": true,// 控制每頁顯示記錄數
                        "iDisplayLength": 10, // 每頁顯示數量
                        "fnServerData" : function(sSource, aoData, fnCallback) {
                            $.ajax({
                                "type" : 'post',
                                "url" : sSource,
                                "dataType" : "json",
                                "data" : {
                                    aoData : JSON.stringify(aoData),
                                    searchData: JSON.stringify(searchData)
                                },
                                "success" : function(resp) {
                                    fnCallback(resp);
                                    var datas=resp.aaData;                              
                                },
                                error: function(resp){
                                }
                            });
                        }/* ,
                        "fnRowCallback": function(nRow, aData, iDisplayIndex) {
//                          當創建了行，但還未繪製到屏幕上的時候調用，通常用於改變行的class風格，此處用於顯示‘表格序號’ 
                            $('td:eq(0)', nRow).html(iDisplayIndex+1);
                            return nRow;
                        } */
                    });

提示acceptId找不到，解決方案:

{ "mData":"acceptId",
                            "mRender":function(data,type,full){
                                if(data !=null){
                                    if(full.acceptUser !=null){
                                        return full.acceptUser.userName;
                                    }
                                }else{
                                    return "";
                                }
                            }
                        }

在寫mRender時，必須所有路徑都要有返回值，做了空值判斷，但是沒有給返回值所以出現了上述錯誤，做個記錄，以備後續使用。