DataTables中提示：DataTables warning: table id=example - Cannot reinitialise DataTable.

男娘i 2023-10-18 20:12 75阅读 0赞

## 场景 ##

在页面中有一个下拉框select，在select的change事件中，每此要根据选择的值的

不同进而在dataTables中显示不一样的值。

错误提示如图：

![Image 1][]![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

错误代码如下：

$(document).ready(function() {
        //选择退货方后退货目的地绑定联动
        $("#businessInitiator").bind("change", function () {
            //获取选中的option的value值
            var selected = $("#businessInitiator option:selected").val();
            //获取退货目的地Input对象
            var destination = $("#destination");
            switch (selected){
                case '原料立库':
                    destination.val("原料立库退货点")
                    break;
                case '清洁车间':
                    destination.val("清洁车间退货点")
                    break;
                case '正极车间':
                    destination.val("正极车间退货点")
                    break;
                case '负极车间':
                    destination.val("负极车间退货点")
                    break;
                default:
                    destination.val("其它退货点")
            }
            //退货目的地联动完成
            // DataTable初始化
            var t = $('#example').DataTable({
                "language": {
                    "processing": "处理中...",
                    "lengthMenu": "显示 _MENU_ 项结果",
                    "zeroRecords": "没有匹配结果",
                    "info": "显示第 _START_ 至 _END_ 项结果，共 _TOTAL_ 项",
                    "infoEmpty": "显示第 0 至 0 项结果，共 0 项",
                    "infoFiltered": "(由 _MAX_ 项结果过滤)",
                    "infoPostFix": "",
                    "search": "搜索:",
                    "searchPlaceholder": "搜索...",
                    "url": "",
                    "emptyTable": "表中数据为空",
                    "loadingRecords": "载入中...",
                    "infoThousands": ",",
                    "paginate": {
                        "first": "首页",
                        "previous": "上页",
                        "next": "下页",
                        "last": "末页"
                    },
                    "aria": {
                        paginate: {
                            first: '首页',
                            previous: '上页',
                            next: '下页',
                            last: '末页'
                        },
                        "sortAscending": ": 以升序排列此列",
                        "sortDescending": ": 以降序排列此列"
                    },
                    "decimal": "-",
                    "thousands": "."
                },
                "processing": true,
                "searching" : false,
                "pageLength": 100,
                "serverSide": true,
                "columnDefs": [ {
                    "searchable": false,
                    "orderable": false,
                    "targets": "_all",
                }],
                "dom": '<"top">rt<"bottom"flpi><"clear">',
    
                columns: [
                    { data: 'id' ,
                        "orderable" : false},
                    { data: 'goodsLocationNumber' },
                    { data: 'locationTypeName' ,
                        "orderable" : false},
                    { data: 'saveMaterialTypeName' ,
                        "orderable" : false},
                    { data: 'materielStatusName',
                        "orderable" : false},
                    { data: 'shelveName' ,
                        "orderable" : false},
                    { data: 'remark',
                        "orderable" : false }
                ],columnDefs: [{
                    //   指定第1列，从0开始，0表示第一列，1表示第二列……
                    "targets": 0,
                    "bSortable": false,
                    "render": function(data, type, row, meta) {
                        if (row.isSelected == 1){
                            return '<input type="checkbox" class="checkchild" onclick="childClick(this)" checked="checked" value="' + row.id + '" />'
                        }
                        return '<input type="checkbox" class="checkchild" onclick="childClick(this)" value="' + row.id + '" />'
                    }
                }],
                "ajax": function (data, callback, setting) {
                    data.editActionId = $("#refundOrderId").val();
                    $.ajax({
                        type: 'POST',
                        url: "/busGoodsLocation/getRejectsLocationsList",
                        cache: false,  //禁用缓存
                        //async: true,
                        data: JSON.stringify(data),  //传入组装的参数
                        contentType: "application/json",
                        dataType: "json",
                        success: function (result) {
                            callback(result);
                        }
                    })
                }
            });
        });
    });

## 实现 ##

根据错误提示是不能初始化dataTable，即在同一个页面中不能多次初始化DataTables。

解决，在每此的点击事件中初始化之前先还原初始化。

$("#example").dataTable().fnDestroy();//还原初始化了datatable

完整示例代码：

$(document).ready(function() {
        //选择退货方后退货目的地绑定联动
        $("#businessInitiator").bind("change", function () {
            //获取选中的option的value值
            var selected = $("#businessInitiator option:selected").val();
            //获取退货目的地Input对象
            var destination = $("#destination");
            switch (selected){
                case '原料立库':
                    destination.val("原料立库退货点")
                    break;
                case '清洁车间':
                    destination.val("清洁车间退货点")
                    break;
                case '正极车间':
                    destination.val("正极车间退货点")
                    break;
                case '负极车间':
                    destination.val("负极车间退货点")
                    break;
                default:
                    destination.val("其它退货点")
            }
            //退货目的地联动完成
     $("#example").dataTable().fnDestroy();//还原初始化了datatable
            // DataTable初始化
            var t = $('#example').DataTable({
                "language": {
                    "processing": "处理中...",
                    "lengthMenu": "显示 _MENU_ 项结果",
                    "zeroRecords": "没有匹配结果",
                    "info": "显示第 _START_ 至 _END_ 项结果，共 _TOTAL_ 项",
                    "infoEmpty": "显示第 0 至 0 项结果，共 0 项",
                    "infoFiltered": "(由 _MAX_ 项结果过滤)",
                    "infoPostFix": "",
                    "search": "搜索:",
                    "searchPlaceholder": "搜索...",
                    "url": "",
                    "emptyTable": "表中数据为空",
                    "loadingRecords": "载入中...",
                    "infoThousands": ",",
                    "paginate": {
                        "first": "首页",
                        "previous": "上页",
                        "next": "下页",
                        "last": "末页"
                    },
                    "aria": {
                        paginate: {
                            first: '首页',
                            previous: '上页',
                            next: '下页',
                            last: '末页'
                        },
                        "sortAscending": ": 以升序排列此列",
                        "sortDescending": ": 以降序排列此列"
                    },
                    "decimal": "-",
                    "thousands": "."
                },
                "processing": true,
                "searching" : false,
                "pageLength": 100,
                "serverSide": true,
                "columnDefs": [ {
                    "searchable": false,
                    "orderable": false,
                    "targets": "_all",
                }],
                "dom": '<"top">rt<"bottom"flpi><"clear">',
    
                columns: [
                    { data: 'id' ,
                        "orderable" : false},
                    { data: 'goodsLocationNumber' },
                    { data: 'locationTypeName' ,
                        "orderable" : false},
                    { data: 'saveMaterialTypeName' ,
                        "orderable" : false},
                    { data: 'materielStatusName',
                        "orderable" : false},
                    { data: 'shelveName' ,
                        "orderable" : false},
                    { data: 'remark',
                        "orderable" : false }
                ],columnDefs: [{
                    //   指定第1列，从0开始，0表示第一列，1表示第二列……
                    "targets": 0,
                    "bSortable": false,
                    "render": function(data, type, row, meta) {
                        if (row.isSelected == 1){
                            return '<input type="checkbox" class="checkchild" onclick="childClick(this)" checked="checked" value="' + row.id + '" />'
                        }
                        return '<input type="checkbox" class="checkchild" onclick="childClick(this)" value="' + row.id + '" />'
                    }
                }],
                "ajax": function (data, callback, setting) {
                    data.editActionId = $("#refundOrderId").val();
                    $.ajax({
                        type: 'POST',
                        url: "/busGoodsLocation/getRejectsLocationsList",
                        cache: false,  //禁用缓存
                        //async: true,
                        data: JSON.stringify(data),  //传入组装的参数
                        contentType: "application/json",
                        dataType: "json",
                        success: function (result) {
                            callback(result);
                        }
                    })
                }
            });
        });
    });

[Image 1]: 
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