自定义的联动下拉框

一直都嫌下拉框这个html控件难看，之前弄了个<div><ul><li></li></ul></div>版的下拉框

觉得这个下拉框已经稍微能满足美观需求了，

 

这个是点出来的效果，写了键盘的方向键，回车，esc等 事件， 并且能根据页面的底部距离判断是否向上展示

今天弄了个联动的，顺便贴部分代码

效果预览：

 

 以下代码解决了ie6的兼容问题

 $containerDivText.mousedown(function() {
            setTimeout(
        function() {
            if ($newUl[0].style.display == 'block') {
                $newUl.hide();
                positionHideFix();
                return false;
            }

            $containerDiv.focus();

            //show list
            $newUl.slideDown(100);
            positionFix();

            //when keys are pressed
            document.onkeydown = function(e) {
                if (e == null) { // ie
                    var keycode = event.keyCode;
                } else { // everything else
                    var keycode = e.which;
                }
                //enter key or esc key pressed, hide list
                if (keycode == 13 || keycode == 27) {
                    $newUl.hide();
                    positionHideFix();
                    return false;
                }
            }
        }, 1);
        //the function settimeout is used for ie6, because if you click the element where you hava focused on the element, 
        //ie6 would think you click it twice(2010-2-4)
        });

 以下代码解决了下拉框事件定义功能匮乏问题

if (!opts.callbackfn) {
            $newLi.click(function(e) {

                var $clickedLi = jQuery(e.target),
            text = $clickedLi.text();

                //update counter
                currentIndex = $newLi.index($clickedLi);
                //remove all hilites, then add hilite to selected item
                $newLi.removeClass('hiLite');
                $clickedLi.addClass('hiLite');

                setSelectText(text);
                $newUl.hide();
                $containerDiv.css('position', 'static'); //ie
            });
        } else {
            $newLi.click(function(e) {

                var $clickedLi = jQuery(e.target),
            text = $clickedLi.text();

                //update counter
                currentIndex = $newLi.index($clickedLi);
                //remove all hilites, then add hilite to selected item
                $newLi.removeClass('hiLite');
                $clickedLi.addClass('hiLite');

                setSelectText(text);
                $newUl.hide();
                $containerDiv.css('position', 'static'); //ie
                (opts.callbackfn)(this.value);
            });

        } //param callbackfn means you can define a event function from every li in the ul;(2010-2-4)

然后是页面的应用，

<script type="text/javascript">
    jQuery(document).ready(function() {
        jQuery("#my-dropdown2").hide();
        jQuery('#my-dropdown1').sSelect(
            { defaultText: "",
                callbackfn: function(value) {
                    if (value == 1) {
                        jQuery("#my-dropdown2_list").parent().remove();
                        jQuery("#linkc_value").val(value);
                        return;
                    }
                    jQuery.getJSON(
                               '/Department.mvc/GetSubDepartment?DepartmentID=' + value,
                             function(list) {
                                 jQuery("#my-dropdown2_list").parent().remove();
                                 jQuery("#my-dropdown2").html("");
                                 var temp = "";
                                 temp += "<option value=''>请选择部门</option>";
                                 for (var i = 0; i < list.length; i++) {
                                     temp += "<option value=" + list[i].DepartmentID + ">" + list[i].DepartmentName + "</option>";
                                 }
                                 jQuery("#my-dropdown2").html(temp);
                                 jQuery("#my-dropdown2").show();
                                 jQuery('#my-dropdown2').sSelect({
                                     callbackfn: function(value) {
                                         jQuery("#linkc_value").val(value);
                                     }
                                 });
                             }
                     );
                }
            }
        );


        //        killErrors = function(){ return true; }
        //        window.onerror = killErrors;

    });
    function linkc() {
        location.href = "/User.mvc/Front?DepartmentID=" + jQuery("#linkc_value").val();
    }
    </script>

这三块只是部分

但是花的时间较多 其它代码不贴了 有问题留言吧。。。