Datepicker is not opening when jqery is updated to 3.5.0 shows error

[Vaibhav]

below is the code of popup and javascript function

 <!-- #region  Vaibhav Updated Bootstrap 5.3.3 * -->
 <!-- DatePicker Text Modal -->
 <div class="modal fade" id="DatePickerZoneModal" data-bs-backdrop="static" data-bs-keyboard="false" tabindex="-1" aria-labelledby="DatePickerZoneModalLabel" aria-hidden="true">
     <div class="modal-dialog modal-sm" style="min-width: 375px;">
         <div class="modal-content">
             <div class="modal-header">
                 <h6 class="modal-title">
                     @Localizer["lblSelectDate"]
                     <span class="lblDate fst-italic" style="color:lightgray;"></span>
                 </h6>
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <div class="modal-body" style="height: 120px; padding: 2.5rem;">
                 <div id="dvdatezone">
                     <span class="spnmandatory hide" style="color: red; font-weight: bold; font-size: 18px;">*</span>
                     <label style="float:left; margin-right: 10px; margin-top: 5px;">Date : </label>
                     <input type="text" id="txtDatePicker">
                 </div>
                 <label id="lblmsg" style="color:red; margin: 0.5rem 4rem; font-size:15px;"></label>
                 <span data-for="myDatePicker" class="k-invalid-msg"></span>
             </div>
             <div class="modal-footer">
                 <button type="button" id="btnDateSave" class="btn btn-default btnCreate" onclick="return UpdateDate();">
                     <i id="innericon" class="fal fa-check-circle"></i>
                     <span id="innerdiv">@Localizer["lblSavechanges"]</span>
                 </button>
                 <button type="button" class="btn btn-default btnCancel" data-bs-dismiss="modal">
                     <i id="innericon" class="fal fa-ban"></i>
                     <span id="innerdiv">@Localizer["lblClose"]</span>
                 </button>
             </div>
         </div>
     </div>
 </div>


// Vaibhav UpdateDate Code for Bootstrap 5.3.3

 function UpdateDate() {
    var $txtDatePicker = $("#txtDatePicker");
    var editor = $("#txtDatePicker").val();
    var textZoneId = $("#hdnTextZoneId").val();
    var index = textZoneId.split("_");
    var frShowDocs = $frShowDocs[0].contentWindow;
    var commmentDivtext = frShowDocs.document.getElementById(textZoneId);
    var plainText = editor.replace(/<[^>]*>/g, "");
    var cnt = 0;
    if (frShowDocs.objTxtZoneArray[index[1]] != undefined) {
        cnt = 1;
    } else {
        cnt = 0;
    }

    //Asingh: first replace <br /> to "!!_!!"
    var outputText = plainText.replace(/<br\s*[\/]?>/gi, '!!_!!');
    outputText = outputText.replace(/!!_!!/gi, '\n');
    console.log('outputText : ' + outputText);
    commmentDivtext.innerText = outputText;

    jsonInputInfos.TextZones[index[cnt]].RTFTXT = outputText; //<<<ben: To see: should be not html encoded, at the moment if a "é" is here it's saved as "&eacute; in the db ...
    jsonInputInfos.TextZones[index[cnt]].RTFTXTDECODE = outputText;

    //Prab Fix: Client got enccoded french text
    frShowDocs.objTxtZoneArray[index[cnt]].lastValue = outputText;
    frShowDocs.objTxtZoneArray[index[cnt]].isUpdated = true;

    var validator = $txtDatePicker.data("kendoValidator");
    if (!validator.validate()) {
        return false;
    }

    $("#DatePickerZoneModal").modal('hide');
    return false;
}

// $("#txtDatePicker").on("focus", function () {
//     var dp = $(this).data("kendoDatePicker");
//     if (dp) dp.open();
// });

function DateZoneModal(clickedDivId, isMandatoryflag) {
    if (isMandatoryflag)
        $(".spnmandatory").removeClass("hide");
    $("#btnDateSave").attr('disabled', false);
    var $hdnTextZoneId = $("#hdnTextZoneId");
    $hdnTextZoneId.val(clickedDivId.id);
    var textZoneId = $hdnTextZoneId.val();
    var index = textZoneId.split("_");
    $("#lblmsg").text(' ');
    //read iframe elemnt
    var frShowDocs = $frShowDocs[0].contentWindow;

    currentHighlightZone = parseInt(clickedDivId.dataset.highlightid);
    frShowDocs.DisplayArrow(currentHighlightZone, true, false);

    var commmentDivtext = frShowDocs.document.getElementById(clickedDivId.id);
    var zoneText = commmentDivtext.innerText;

    zoneText = zoneText.replace(/\n/g, "!!_!!");
    zoneText = zoneText.replace(/!!_!!/g, "<br />");
    console.log(clickedDivId.dataset.dateformat);

    var $txtDatePicker = $("#txtDatePicker");
    var $DatePickerZoneModal = $("#DatePickerZoneModal");

   // 1. Destroy previous DatePicker instance (if exists)
    if ($txtDatePicker.data("kendoDatePicker")) {
        $txtDatePicker.data("kendoDatePicker").destroy();
        $txtDatePicker.unwrap(); // Removes Kendo's wrapper (important to avoid offset errors)
       // $txtDatePicker = $('<input type="text" id="txtDatePicker" />'); // Recreate input
    }
    setTimeout(function () {
        $txtDatePicker.kendoDatePicker({
            dateInput: true,
            validation: { required: true },
            format: clickedDivId.dataset.dateformat,
        });
    }, 100); // delay ensures modal is fully rendered
  

    $txtDatePicker.kendoValidator({
        rules: {
            dateValidation: function (input) {
                if (input.is('[data-role="datepicker"]')) {
                    var value = $(input).val();
                    var dformat = $(input).attr("data-dateformat");
                    var date = kendo.parseDate(value, dformat);

                    if (value == "" || !date) {
                        $("#btnDateSave").attr('disabled', 'disabled');
                        $("#lblmsg").text(txtdatevalidmsg);
                        $(input).val('');
                        return false;
                    }
                    else {
                        $("#btnDateSave").attr('disabled', false);
                        $("#lblmsg").text(' ');
                        return true;
                    }
                }
                return true;
            }
        },
        messages: {
            dateValidation: txtdatevalidmsg
        }
    });

    $txtDatePicker.val(zoneText);
    $txtDatePicker.attr("data-dateformat", clickedDivId.dataset.dateformat);
    $txtDatePicker.attr('placeholder', clickedDivId.dataset.dateformat.toUpperCase());
    $DatePickerZoneModal.find('.lblDate').text('(' + clickedDivId.dataset.dateformat.toUpperCase() + ')');
    $('.k-datepicker').attr('style', 'width:initial;');
    // $("#lblmsg").text(' ');
    //$("#btnDateSave").attr('disabled', false);
    $DatePickerZoneModal.modal('show');
}

[Vaibhav]

This the library i am using 

[Nikolay]

Hello Vaibhav,

Generally, when using the Kendo components with Bootstrap, Bootstrap modal dialogs prevent access to Kendo UI popups, which are opened by components placed inside the modal dialog. In such cases, use non-modal Bootstrap dialogs or modal Kendo UI Windows.

One option to resolve this is using the Kendo Window or Kendo Dialog components.

Another option is to add this workaround after initializing your DropDownList:

// Prevent focus trap interference
$('#myModal').on('shown.bs.modal', function () {
    $(document).off('focusin.bs.modal');
});

Or in Bootstrap 5+ with Modal.getOrCreateInstance:

const myModal = bootstrap.Modal.getOrCreateInstance(document.getElementById('myModal'));
$('#myModal').on('shown.bs.modal', function () {
    $(document).off('focusin.bs.modal');
});

I hope the above helps. If not, feel free to assemble a small Dojo demo where the problem is replicated so I can investigate further.

Regards,
Nikolay
Progress Telerik