DropDown selection change remove selectpicker plugin from DropDownList while using AdminBSB material design template in ASP.Net

YacharuP says:

<script type="text/javascript">

        $(function () {

            $('[id$=grid_dist_registration]').prepend($("<thead></thead>").append($('[id$=grid_dist_registration]').find("tr:first"))).DataTable({

                "responsive": true,

                "sPaginationType": "full_numbers",

                "aoColumnDefs": [{ bSortable: false, aTargets: [0] }]

            });

            $('[id$=grid_dist_registration] tr:first').eq(0).find('th').eq(0).removeClass();

        });

    </script>

Replace the above with the below code.

<script type="text/javascript">
    function pageLoad() {
        $('[id$=grid_dist_registration]').prepend($("<thead></thead>").append($('[id$=grid_dist_registration]').find("tr:first"))).DataTable({
            "responsive": true,
            "sPaginationType": "full_numbers",
            "aoColumnDefs": [{ bSortable: false, aTargets: [0]}]
        });
        $('[id$=grid_dist_registration] tr:first').eq(0).find('th').eq(0).removeClass();
        $('select').selectpicker();
    }
</script>

and remove the On UpdatePanel Refresh complete script i.e.

YacharuP says:

<script type="text/javascript">

        //On UpdatePanel Refresh

        var prm = Sys.WebForms.PageRequestManager.getInstance();

        if (prm != null) {

            prm.add_endRequest(function (sender, e) {

                if (sender._postBackSettings.panelsToUpdate != null) {

                    $('[id$=grid_dist_registration]').prepend($("<thead></thead>").append($('[id$=grid_dist_registration]').find("tr:first"))).DataTable({

                        "responsive": true,

                        "sPaginationType": "full_numbers",

                        "aoColumnDefs": [{ bSortable: false, aTargets: [0] }]

                    });

                    $('[id$=grid_dist_registration] tr:first').eq(0).find('th').eq(0).removeClass();

                }

            });

        };

    </script>