<script type="text/javascript">

        function SelectDoldur1(Selector,Liste) {
            var str1 = '';
            $.each(Liste,function (key,value) {
                console.log(value);
                str1 += '<option value="' + value.Value + '">' + value.Text + '</option>';           
            });
            $(Selector).empty(); 
             console.log(str1); 
            $(Selector).append(str1);
            $(Selector).selectpicker('render');
        }
        $(document).ready(function () {
            $('.birimler').selectpicker();
            $("#birimturu").change(function () {
                var birimturuid = $(this).val();
                $.ajax({
                    url: '/Home/Birimlist',type: "POST",dataType: "json",data: { birimturuid: birimturuid },success: function (data) {
                        SelectDoldur1('#birimler',data);
                      
                    }
                })
            });
        });
    </script>