I'll try my best to explain this issue i'm having...

I have input text column filtering for my datatable. I've added it to my header instead of my footer, but everything still works. But something strange was happening in IE where I am unable to highlight or select all text in the input. I've tried adding:

CSS:

input{
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
} 

as well as

JQuery:
$(this).select();

but nothing works.

here is a snippet

var table = $('#table')
                .on('processing.dt',
                    function(e, settings, processing) {
                        if (processing) {
                            ShowRefreshSpinner();
                        } else {
                            HideRefreshSpinner();
                        }
                    })
                .DataTable({
                    ajax: "...",
                    postUrl: "...",
                    addRecordParams: {
                        action: "@ModalAction.Add.ToInt()"
                    },
                    editRecordParams: {
                        action: "@ModalAction.Edit.ToInt()"
                    },
                    columns: columnHeaders,
                    scrollY: parseInt($(window).height() * .45),
                    scrollCollapse: true,
                    scroller: true,
                    //fixedColumns: true,
                    scrollX: true,
                    colReorder: true,
                    //ordering: false,
                    order: [[9, 'asc'], [10, 'asc']],
                    dom:
                        "<'row'<'col-sm-6'l><'col-sm-6'f>><'row'<'col-sm-6'B><'col-xs-12 col-sm-6'p>><'row'<'col-md-12't>><'row'<'col-md-6'i>>",
                    select: 'single',
                    responsive: false,
                    stateSave: true,
                    altEditor: true,
                    language: {
                        paginate: {
                            first: '«',
                            previous: '‹',
                            next: '›',
                            last: '»'
                        },
                        aria: {
                            paginate: {
                                first: 'First',
                                previous: 'Previous',
                                next: 'Next',
                                last: 'Last'
                            }
                        }
                    },
                    buttons: [
                        {

                            extend: 'selected',
                            name: 'edit',
                            text: '<i class="fa fa-lg fa-pencil-square-o edit"></i>'
                        
                        }, {
                            extend: 'selected',
                            text: '<i class="fa fa-lg fa-sitemap children"></i>',
                            action: function(e, dt, node, config) {
                                window.parent.location = '...' +
                                    dt.rows({ selected: true }).data()[0].{Id};
                            }
                        }, {
                            extend: 'copy',
                            text: '<i class="fa fa-lg fa-files-o copy"></i>',
                            exportOptions: {
                                columns: ':visible',
                                orthogonal: null
                            }
                        }, {
                            extend: 'excel',
                            text: '<i class="fa fa-lg fa-cloud-download excel"></i>',
                            exportOptions: {
                                columns: ':visible',
                                orthogonal: null
                            }
                        }, {
                            extend: 'print',
                            text: '<i class="fa fa-lg fa-print print"></i>',
                            exportOptions: {
                                columns: ':visible',
                                orthogonal: null
                            }
                        }, {
                            extend: 'colvis',
                            text: '<i class="fa fa-lg fa-bars colvis"></i>'

                        }, {
                            
                            text: '<i class="fa fa-lg fa-eraser erase"></i>',
                            action: function(e, dt, node, config) {
                               
                                $("input").val('');

                                table.columns().search('').draw();

                            }
                            //titleAttr: 'Clear Filter'
                        }
                    ],
                    columnDefs: [
                        {
                            targets: '_all',
                            orderable: true,
                            type: 'natural-nohtml'
                        }, {
                            targets: 5,
                            render: $.fn.dataTable.render.ellipsis(85)
                        }, {
                            targets: 7,
                            render: function ( data, type, row ) {
                                return GetFormattedDate(data);
                            }
                        }, {
                            targets: 18,
                            render: $.fn.dataTable.render.ellipsis(85)
                        }
                    ],
                    initComplete: function() {
                        var state = this.api().state.loaded();
                        this.api().columns().every(function(colIdx) {
                            var colSearch = state ? state.columns[colIdx].search: null;

                            var column = this;
                            var value = "";
                            if (colSearch)
                                value = colSearch.search;

                            var title = $(column.header()).text();
                            $('<br/>').appendTo($(column.header()));
                            var input = $('<input type="text" class="form-control filter_select" style="width:100%; min-width:120px;" placeholder="Search ' + title + '" value="' + value +'"/>')
                                .appendTo($(column.header())).on('keyup change',
                                function () {
                                    var nm = "" + title + ":name";
                                    var index = table.column(nm).index();
                                    table.column(index)
                                            .search(this.value)
                                            .draw();
                                    }).on('click',
                                function (e) {          
                                    //e.preventDefault();
                                    e.stopPropagation();
                                    this.setSelectionRange(0, this.value.length);
                                }).on('mousedown', function (e) {
                                    //e.preventDefault();
                                    e.stopPropagation();
                                    
                                }).on('focus', function (e) {
                                    //e.preventDefault();
                                    e.stopPropagation();
                                    
                                });

                        });
                        table.columns.adjust();
                        table.responsive.recalc();
                    },
                    createdRow: function(row, data, dataIndex) {
                        var a = data.BusinessRanking;
                        if (data.BusinessRanking < 1) {
                            $(row).addClass('warning');
                        }

                    }

                });

            //$('#table thead th').each(function() {
            //    var title = $('#table thead th').eq($(this).index()).text();
            //    $(this).html('&lt;input type=&quot;text&quot; placeholder=&quot;Search ' + title + '&quot; /&gt;');
            //});

            //table.columns().eq(0).each(function(colIdx) {
                //    $('input', example.column(colIdx).header()).on('keyup change',
                //        function() {
                //            example
                //                .column(colIdx)
                //                .search(this.value)
                //                .draw();
                //        });

                //    $('input', table.column(colIdx).header()).on('click',
                //        function(e) {
                //            e.stopPropagation();
                //        });

                $('#table tbody').on('dblclick',
                    'tr',
                    function () {
                        table.rows(this).select();
                        table.button('0').trigger();
                    });

            $('#table tbody').on('click',
                'tr',
                function() {
                    table.columns.adjust();
                });
            //});

            //$('#container').css('display', 'block');
            table.columns.adjust();
        }); //.ready