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Bootstap 4 Datatable column header not aligned in tbody

Here is my datatable initialization :
$(document).ready(function () {
var table = $('#dtBasicExample').DataTable({
"stateSave": true,
"responsive": true,
"ordering": true,
"pagingType" : "simple_numbers",
"lengthChange": true,
"fnInitComplete": function () {
var myCustomScrollbar = document.querySelector('#dt-vertical-scroll_wrapper .dataTables_scrollBody');
},
"scrollY": 620,
"scrollX": true,
"scroller": {
"rowHeight": 30
},
"scrollCollapse": true,
"deferRender": true,
"lengthMenu": [[10, 25, 50, 100, -1], [10, 25, 50, 100, "All"]],
"language": {
"zeroRecords" : "No Records were found",
"lengthMenu": "_MENU_"
}
});
table.column( 0 ).visible( false ); // hide first column
table.columns.adjust().draw(); // not working
});
Photo not mine, but this is same as what my table looks like. Table header is not aligned.
I already set the table width="100%", I have tried Table.columns.adjust().draw(), Table.clear().draw() and some css hacks for 'dataTables_scrollHeadInner' and 'dataTables_scrollHead' as mentioned in some posts but neither of them have worked.
Please note that it only happens when the data is loaded for the first time. The width of the table changes when I click pagination button or even F12 to bring up the dev tool console and looks as expected.
Any help will be appreciated.

datatable column.search() is not filtering my table using

I've created a simple search but it's not filtering, I'm using datatable plug-ins. I don't know what did I missed in my script.
<input type="text" id="txtserial" name="txtSerial" class="form-control" />
Here's my javascript:
var dtmyJob = $('#myJob').DataTable({
"aLengthMenu": [[10, 25, 50, -1], [10, 25, 50, "All"]],
iDisplayLength: -1,
sScrollY: "40vh",
bScrollInfinite: true, //this property disables pagination
"scrollCollapse": true,
"paging": false,
"bInfo": false,
"bFilter": false,
"bSort": false
});
$("#txtserial").on('keyup', function () {
dtmyJob.columns(2).search(this.value).draw();
alert(dtmyJob);
});

Remove bFilter: false because you have disabled searching ability and that's why searching with columns().search() doesn't work.
Use dom option if you just want to hide the search box.
For example:
'dom': 'lrtip'

DataTable.defaults not working in jQuery DataTables-1.10.7

I'm using this plugin here https://www.datatables.net/ along side jQuery.2.1.4.
I'm also trying to utilize functionality provided by both https://www.datatables.net/manual/styling/jqueryui and https://jqueryui.com/
However i keep getting the following error
Uncaught TypeError: Cannot read property 'defaults' of undefined
The code throwing that error is below & its in java-script file "dataTables.jqueryui.js" which i downloaded from here https://www.datatables.net/manual/styling/jqueryui
/* Set the defaults for DataTables initialisation */
$.extend( true, DataTable.defaults, {
dom:
'<"'+toolbar_prefix+'tl ui-corner-tr"lfr>'+
't'+
'<"'+toolbar_prefix+'bl ui-corner-br"ip>',
renderer: 'jqueryui'
} );
EDIT:
Below is how i'm initializing my tables
var oTable;
function TableSorter(arr) {
if (arr == 'Custome') {
oTable = $('#myDefaultTable').dataTable({
"bJQueryUI": true,
"aaSorting": [[0, "desc"]],
"sPaginationType": "full_numbers",
"aLengthMenu": [[10, 25, 50, 100, -1], [10, 25, 50, 100, "All"]]
});
}
else if (arr == null) {
oTable = $('#myDefaultTable').dataTable({
"bJQueryUI": true,
"sPaginationType": "full_numbers",
"aLengthMenu": [[10, 25, 50, 100, -1], [10, 25, 50, 100, "All"]]
});
}
else {
oTable = $('#myDefaultTable').dataTable({
"bJQueryUI": true,
"aaSorting": [[0, "desc"]],
"sPaginationType": "full_numbers",
"aoColumnDefs": [{ "bSortable": false, "aTargets": arr }],
"aLengthMenu": [[10, 25, 50, 100, -1], [10, 25, 50, 100, "All"]]
});
}
};

The problem was being cause by loading "jquery-ui.js" before "jquery.dataTables.js".
I modified my #Scripts.Render('') order in my shared view such that "jquery.dataTables.js" is loaded first before "jquery-ui.js" and that resolved the problem.

How to manually delimit the number of displayed tows of a table (DataTables)?

Is there any possibility to manually delimit the numbers of the displayed rows of a (Data)Table?
Normally we use filtering input, but then the values are fixed; for example: 10, 25, 50, 100, All.
I would like to have a text field where I could insert the number of rows I wish to display; for example: 3, 7, 29, etc and then after clicking a button we would display the "pages" of the table only with the inserted number of rows.
I read some tutorials and did some searches, but was unable to find anything about it.
Here the JavaScript of my table (but I don't think it helps):
$('#search-table').dataTable({
"dom": "<'box-content'<'col-md-4'l><'col-md-8 text-right'f><'clearfix'>>rt<'box-content'<'col-md-5'i><'col-md-7 text-right'p><'clearfix'>>",
"aoColumnDefs": [
{ 'bSortable': false, 'aTargets': [ 8, 9, 10 ] }
],
"aLengthMenu": [[50, 100, 500, -1], [50, 100, 500, "All"]],
"iDisplayLength": 50,
"pagingType": "full_numbers",
"oLanguage": {
"sSearch": 'Filter within results: ',
"sLengthMenu": '_MENU_'
},
});
Any help is welcome!

Straight from datatable forums.
var oTable;
$(document).ready(function() {
$('YourButtonIdorSelector').click( function () {
var newDisplayLength = $("TextFieldIDOrSelectorHere").val();
var oSettings = oTable.fnSettings();
oSettings._iDisplayLength = newDisplayLength;
oTable.fnDraw();
});
oTable = $('#search-table').dataTable({
"dom": "<'box-content'<'col-md-4'l><'col-md-8 text-right'f><'clearfix'>>rt<'box-content'<'col-md-5'i><'col-md-7 text-right'p><'clearfix'>>",
"aoColumnDefs": [
{ 'bSortable': false, 'aTargets': [ 8, 9, 10 ] }
],
"aLengthMenu": [[50, 100, 500, -1], [50, 100, 500, "All"]],
"iDisplayLength": 50,
"pagingType": "full_numbers",
"oLanguage": {
"sSearch": 'Filter within results: ',
"sLengthMenu": '_MENU_'
},
});
});
or
var searchTable = $('#search-table').dataTable({
"dom": "<'box-content'<'col-md-4'l><'col-md-8 text-right'f><'clearfix'>>rt<'box-content'<'col-md-5'i><'col-md-7 text-right'p><'clearfix'>>",
"aoColumnDefs": [
{ 'bSortable': false, 'aTargets': [ 8, 9, 10 ] }
],
"aLengthMenu": [[50, 100, 500, -1], [50, 100, 500, "All"]],
"iDisplayLength": 50,
"pagingType": "full_numbers",
"oLanguage": {
"sSearch": 'Filter within results: ',
"sLengthMenu": '_MENU_'
},
});
searchTable.fnSettings()._iDisplayLength = $("TextFieldIDOrSelectorHere").val();
searchTable.fnDraw(); //redraw the table

You can simply add the new length you want displayed to the _iDisplayLength property and redraw the table.
When creating the data table, this stuff would go in the complete callback function fnInitComplete
$('#search-table').dataTable({
"fnInitComplete": function(oSettings,json){
var $table = this;
//example of how many rows to show
var newLength = 29;
//add the new value to your datatable object
oSettings._iDisplayLength = newLength;
//redraw the table, you have to do this to see the changes
$table.fnDraw();
},
//the rest of your settings
});

Datatables 1.10 paging only shows page number 1

I'm using jQuery DataTables v1.10.
At our new website we have a dataset with more than 10000 records.
The displayLength is set by default at 50 records.
After initializing the DataTable, 50 of 10000+ records are showing, but there's only 1 pagination item visible and a forward and backward arrow which are both disabled.
When I'm changing the displayLength to 100, I get one page with 100 records out of 10000+, but still one page instead of more than 100 pages.
This is our initialisation:
"oLanguage": oDatatablesNL,
"sDom": '<"dt-toolbar clearfix"fpl>rt<"row-actions"><"dt-toolbar bottom clearfix"p>',
"processing": true,
"serverSide": true,
"ajax": "/?async=yes&get=datatable,
"ordering": true,
"order": [[ 4, "asc" ]],
"paging": true,
"pagingType": "full_numbers",
"displayStart": 0,
"lengthMenu": [[50, 100, 500], [50, 100, 500]],
"lengthChange": true,
"searching": true,
//"deferRender": true,
"columns":
[
{
"data": "firstColumn",
"class": "first"
},
{
"data": "secondColumn",
"class": "second"
},
],
"createdRow": function( row, data, dataIndex ) {
dtUpdateData(row, data, dataIndex);
},
"initComplete": function() {
dtExtras(dtLengths);
}
And our serverside data:
{"draw":1,"recordsTotal":"15827","recordsFiltered":"50","data":[{'column1':'test','column2':'test2'}]

The problem seemed to be that recordsFiltered should be the number of records which were filtered by the query. I've searched for the answer during more than 2 hours; feeling really dumb now... ;)