<a class="btn btn-primary modItem" asp-area="" asp-controller="Account" asp-action="EditUser">
    <i class="fas fa-edit"></i>
</a>

<div id="modDialog" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="exampleModalLabel" aria-hidden="true">
    <div id="dialogContent" class="modal-dialog" role="document"></div>
</div>

$(function () {
    $.ajaxSetup({ cache: false });

    $(document).on('click', '.modItem', function (e) {
        e.preventDefault();
        $.get(this.href, function (data) {
            $('#dialogContent').html(data);
            $('#modDialog').on('shown.bs.modal', function () {
            })
        });
    });
})

        public IActionResult EditUser()
        {
            return PartialView();
        }

    $(document).on('click', '.modItem', function (e) {
        e.preventDefault();
        $.get(this.href, function (data) {
            $('#dialogContent').html(data);
            $("#modDialog").modal();
        });
    });