Incorrectly shown datepicker in jqgrid only bootstrap4 - datepicker

Question

Transform jqgrid from jQueryUI to bootstrap4. Everything is displayed correctly except datepicker (see picture).
![datepicker / jqGrid]:(https://drive.google.com/file/d/1nP7nGCPNprVFxmktvZJLupQI-xXcxcaN/view?usp=sharing)
How to fix?
<!--my lib-->
<!--jquery-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<!--bootstrap4-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.47/css/bootstrap-datetimepicker.min.css"/>
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datetimepicker/4.17.47/js/bootstrap-datetimepicker.min.js"/>
<!--jqgrid with botstrap4 css-->
<script type="text/javascript" src="../jquery.jqGrid.min.js"></script>
<link rel="stylesheet" type="text/css" href="../css/ui.jqgrid-bootstrap4.css" />
//...
//my code snippet from jqGrid
mygrid.jqGrid({
styleUI: "Bootstrap4",
iconSet: "fontAwesome",
// ...
{label: 'created', name: 'created_at', index: 'created_at', width: 30, editable: false, align: 'right', formatter: 'date', formatoptions: {srcformat: 'Y-m-d H:i:s', newformat: 'd.m.Y H:i:s'}, editrules: {date: true},
searchoptions:{
sopt:['eq','lt','le','gt','ge'],
dataInit: function (element) {
var self = this;
$(element).datepicker({
id: 'dp_created',
dateFormat: 'dd.mm.yy',
maxDate: new Date(2100, 1, 1),
showOn: 'focus',
onSelect: function () {
setTimeout(function () {
self.triggerToolbar();
}, 0);
}
});
}
}
}
// ...

Answer 1

I found a solution.
Need to add (the settings on the website https://gijgo.com/datepicker/configuration).
Can be removed.
<!--<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>-->
variant 1
<script src="https://unpkg.com/gijgo#1.9.13/js/gijgo.min.js" type="text/javascript"></script>
<link href="https://unpkg.com/gijgo#1.9.13/css/gijgo.min.css" rel="stylesheet" type="text/css"/>
or
variant 2
<link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.9.0/css/bootstrap-datepicker.min.css"/>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-datepicker/1.9.0/js/bootstrap-datepicker.min.js?VERSION"></script>
For variant 2
Documentation https://bootstrap-datepicker.readthedocs.io/en/latest/options.html
column in jqGrid
//one of the fields in the table field with dates and times
{label: 'updated', name: 'updated_at', index: 'updated_at', width: 30, editable: false, align: 'right', formatter: 'date', formatoptions: {srcformat: 'Y-m-d H:i:s', newformat: 'd.m.Y H:i:s'}, editrules: {date: true},
searchoptions:{
sopt:['eq','lt','le','gt','ge'],
dataInit: function (element) {
$(element).datepicker({
id: 'dp_updated',
autoclose: true,
format: 'dd.mm.yyyy',
todayHighlight: true,
todayBtn:true,
weekStart:1
});
var self = this; // save the reference to the grid
$(element).datepicker()
.on ('hide', function (e) {
setTimeout(function () {self.triggerToolbar();}, 0);;
});
}
}
},
//...
//this may be required, for example, if the date format in the filter is different from JavaScript
mygrid.jqGrid('filterToolbar',{
searchOperators : true,
beforeSearch: function () {
let postData = grd_sheme_crude.jqGrid('getGridParam', 'postData');
let my_filters = $.parseJSON(postData.filters);
let my_rules = filters.rules;
let mydate_arr,filtered_field,filtered_op,correct_date_1,correct_date_2;
rules.forEach(function(this_rule) {
// recalculate rules/filters
}
postData.filters = JSON.stringify(filters);
}