HTML的select控件美化

2024-04-10 06:02:40

CSS：

.div-select
{
  border: solid 1px #999;
  height: 40px;
  line-height: 40px;
  cursor: default;
}
.div-select-text
{
  float: left;
  background-color: #fff;
  height: 100%;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
}
  .div-select-text > div
  {
    padding: 3px;
    line-height: 34px;
  }
.div-select-arrow
{
  background-color: #fff;
  float: right;
  width: 40px;
  height: 100%;
  color: #999;
  cursor: default;
}
  .div-select-arrow > div
  {
    border: solid 1px #999;
    margin: 2px;
    height: 34px;
    background-color: #f2f2f2;
    text-align: center;
    line-height: 34px;
    font-size: 22px;
  }
.div-select-list
{
  position: absolute;
  float: left;
  top: 100px;
  left: 100px;
  border: solid 1px #999;
  max-height: 300px;
  overflow: auto;
  background-color: #9f9;
  display: none;
  z-index: 9100;
}
  .div-select-list .div-select-item:nth-child(2n+1)
  {
    background-color: #fff;
  }
.div-select-item
{
  height: 50px;
  line-height: 50px;
  padding-left: 3px;
  padding-right: 3px;
  background-color: #f2f2f2;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
}
.div-select-item-hover
{
  background-color: #3399ff!important;
}
.div-select-selected
{
  background-color: #3399ff !important;
}

JS：

//2015年2月8日
//select美化
var divSelectListIndex = 0;
$(function () {
  initDivSelect();
});
//初始化select美化插件
function initDivSelect() {
  $(".div-select-target").each(function () {
    divSelectListIndex++;
    var select = $(this);
    if (select.css("display") == "none") {
      return;
    }
    else {
      select.css("display", "none")
    }
    if (select.next("div").find(".div-select-list").length == 0) {
      select.after('<div><div class="div-select"><div class="div-select-text"><div></div></div><div class="div-select-arrow"><div>∨</div></div></div></div>');
      $("body").append('<div class="div-select-list div-select-list-' + divSelectListIndex + '"></div>');
    }
    var div = select.next("div");
    var divText = div.find(".div-select-text");
    var divSelect = div.find(".div-select");
    var divArrow = div.find(".div-select-arrow");
    var list = $(".div-select-list-" + divSelectListIndex);
    function updateText(item) {
      divText.find("div").html(item.html());
    }
    select.find("option").each(function () {
      var option = $(this);
      var text = option.html();
      var value = option.attr("value");
      list.append('<div class="div-select-item" value="' + value + '">' + text + '</div>');
      list.find(".div-select-item:last").click(function () {
        var item = $(this);
        var value = item.attr("value");
        select.val(value);
        select.change();
        list.find(".div-select-selected").removeClass("div-select-selected");
        item.addClass("div-select-selected");
        updateText(item);
        list.hide();
      });
      list.find(".div-select-item:last").mouseenter(function () {
        var item = $(this);
        var selectedMark = list.find(".div-select-selected");
        selectedMark.removeClass("div-select-selected");
        selectedMark.addClass("div-select-selected-mark");
        list.find(".div-select-item-hover").removeClass("div-select-item-hover");
        item.addClass("div-select-item-hover");
        updateText(item);
      });
    });
    list.mouseleave(function () {
      var selectedMark = list.find(".div-select-selected-mark");
      if (list.find(".div-select-selected").length == 0) {
        selectedMark.addClass("div-select-selected");
        updateText(selectedMark);
      }
      selectedMark.removeClass("div-select-selected-mark");
      list.find(".div-select-item-hover").removeClass("div-select-item-hover");
    });
    if (select.attr("width")) {
      divSelect.width(select.attr("width") - 2);
      divText.width(divSelect.width() - divArrow.width());
      if (select.attr("width") > list.width()) {
        list.width(divSelect.width());
      }
    }
    div.keydown(function (e) {
      list.find(".div-select-selected-mark").removeClass("div-select-selected-mark");
      list.find(".div-select-item-hover").addClass("div-select-selected");
      list.find(".div-select-item-hover").removeClass("div-select-item-hover");
      if (e.keyCode == 40) {
        var currentSelected = list.find(".div-select-selected");
        var nextSelected = currentSelected.next(".div-select-item");
        if (nextSelected.length == 0) {
          nextSelected = list.find(".div-select-item:first");
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          list.scrollTop(0);
        } else {
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          var i = 0;
          while (nextSelected.position().top < 0
            || nextSelected.position().top > list.height() - nextSelected.height()) {
            list.scrollTop(list.scrollTop() + nextSelected.height());
            if (i++ > 100) break;
          }
        }
        updateText(nextSelected);
        return false;
      }
      if (e.keyCode == 38) {
        var currentSelected = list.find(".div-select-selected");
        var nextSelected = currentSelected.prev(".div-select-item");
        if (nextSelected.length == 0) {
          nextSelected = list.find(".div-select-item:last");
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          list.scrollTop(list.find(".div-select-item").length * nextSelected.height());
        }
        else {
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          var i = 0;
          while (nextSelected.position().top < 0
            || nextSelected.position().top > list.height() - nextSelected.height()) {
            list.scrollTop(list.scrollTop() - nextSelected.height());
            if (i++ > 100) break;
          }
        }
        updateText(nextSelected);
        return false;
      }
      if (e.keyCode == 13) {
        var selectedItem = list.find(".div-select-selected");
        var value = selectedItem.attr("value");
        select.val(value);
        list.hide();
        select.change();
      }
    });
    divSelect.click(function () {
      $("a").bind("click", function () {
        $("a").unbind("click");
        list.hide();
      });
      if (list.css("display") == "none") {
        list.show();
      }
      else {
        list.hide();
      }
      list.css("top", divSelect.offset().top + divSelect.height() + 1);
      list.css("left", divSelect.offset().left);
      if ($(window).scrollTop() + $(window).height() < list.offset().top + list.height() + 2) {
        list.css("top", $(window).scrollTop() + $(window).height() - list.height() - 2);
      }
      if (list.width() < divSelect.width()) {
        list.width(divSelect.width());
      }
      var currentSelected = list.find(".div-select-selected");
      if (currentSelected.position().top > list.height() - currentSelected.height()) {
        list.scrollTop(currentSelected.position().top - currentSelected.height() * 2);
      }
      return false;
    });
    $("html,body").bind("click", function () {
      list.hide();
    });
    list.click(function () {
      return false;
    });
    function initSelect() {
      list.find(".div-select-selected").removeClass("div-select-selected");
      var matchItem = list.find(".div-select-item[value='" + select.val() + "']");
      if (matchItem.length > 0) {
        matchItem.addClass("div-select-selected");
        updateText(matchItem);
      }
    }
    initSelect();
    select.change(function () {
      initSelect();
    });
  }); // $(".div-select-target").each
}

如何使用：

第1步、引用CSS和JS：

<link type="text/css" href="~/Scripts/DivSelect/divSelect.css" rel="external nofollow" rel="external nofollow" rel="stylesheet" />
<script type="text/javascript" src="~/Scripts/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="~/Scripts/DivSelect/divSelect.js"></script>

第2步、给select控件加上class="div-select-target" width="200"，其中class="div-select-target"是必须的，width="200"是可选的。完整HTML代码如下：

<link type="text/css" href="~/Scripts/DivSelect/divSelect.css" rel="external nofollow" rel="external nofollow" rel="stylesheet" />
<script type="text/javascript" src="~/Scripts/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="~/Scripts/DivSelect/divSelect.js"></script>

<div style="border: solid 1px #f99; margin: 50px; padding: 50px;">
  <select name="sel" class="div-select-target" width="200" >
    <option value="1">中国</option>
    <option value="2">美国</option>
    <option value="3">法国</option>
    <option value="4">英国</option>
    <option value="5">俄罗斯</option>
    <option value="6">德国</option>
    <option value="7">韩国</option>
    <option value="8">日本</option>
    <option value="9">印度</option>
    <option value="10">巴西</option>
    <option value="11">意大利</option>
    <option value="12">这个国家的名称很长很长很长很长很长很长很长很长</option>
    <option value="13">瑞士</option>
    <option value="14">越南</option>
    <option value="15">缅甸</option>
    <option value="16">泰国</option>
    <option value="17">加拿大</option>
    <option value="18" selected="selected">南非</option>
    <option value="19">澳大利亚</option>
    <option value="20">新西兰</option>
    <option value="21">挪威</option>
    <option value="22">巴勒斯坦</option>
    <option value="23">以色列</option>
    <option value="24">新加坡</option>
    <option value="25">马来西亚</option>
    <option value="26">波兰</option>
    <option value="27">国家27</option>
    <option value="28">国家28</option>
    <option value="29">国家29</option>
    <option value="30">国家30</option>
    <option value="31">国家31</option>
    <option value="32">国家32</option>
    <option value="33">国家33</option>
    <option value="34">国家34</option>
    <option value="35">国家35</option>
    <option value="36">国家36</option>
    <option value="37">国家37</option>
    <option value="38">国家38</option>
  </select>
</div>
<div style="border: solid 1px #f99; margin: 50px; padding: 50px; margin-top: 700px; margin-bottom: 700px;">
  <select name="sel" class="div-select-target" width="200" >
    <option value="1">中国</option>
    <option value="2">美国</option>
    <option value="3">法国</option>
    <option value="4">英国</option>
    <option value="5">俄罗斯</option>
    <option value="6" selected="selected">德国</option>
    <option value="7">韩国</option>
    <option value="8">日本</option>
  </select>
</div>

效果图：

滚动条美化版：

CSS：

.div-select
{
  border: solid 1px #999;
  height: 40px;
  line-height: 40px;
  cursor: default;
}

.div-select-text
{
  float: left;
  background-color: #fff;
  height: 100%;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
  font-size: 16px;
  font-family: 微软雅黑,雅黑;
}

  .div-select-text > div
  {
    padding: 3px;
    line-height: 34px;
  }

.div-select-arrow
{
  background-color: #fff;
  float: right;
  width: 40px;
  height: 100%;
  color: #999;
  cursor: default;
}

  .div-select-arrow > div
  {
    border: solid 1px #999;
    margin: 2px;
    height: 34px;
    background-color: #f2f2f2;
    text-align: center;
    line-height: 34px;
    font-size: 22px;
  }

.div-select-list
{
  position: absolute;
  float: left;
  top: 100px;
  left: 100px;
  border: solid 1px #999;
  max-height: 300px;
  overflow: hidden;
  background-color: #9f9;
  display: none;
  z-index: 9100;
  font-size: 16px;
  font-family: 微软雅黑,雅黑;
}

  .div-select-list .div-select-item:nth-child(2n+1)
  {
    background-color: #fff;
  }

.div-select-item
{
  height: 50px;
  line-height: 50px;
  padding-left: 3px;
  padding-right: 3px;
  background-color: #f2f2f2;
  word-break: keep-all;
  overflow: hidden;
  cursor: default;
}

.div-select-item-hover
{
  background-color: #3399ff!important;
}

.div-select-selected
{
  background-color: #3399ff !important;
}
.div-select-list-scrollbar
{
  position: absolute;
  float: left;
  border: solid 1px #999;
  border-left: 0;
  background-color: #e8e8ec;
  width: 40px;
  height: 300px;
  display: none;
  cursor: default;
  z-index: 9101;
}
.div-select-scrollbar-up
{
  border-bottom: solid 1px #fff;
  height: 39px;
  font-size: 22px;
  line-height: 39px;
  color: #999;
  background-color: #cdcdcd;
  text-align: center;
}
.div-select-scrollbar-pos
{
  height: 220px;
}
  .div-select-scrollbar-pos > div:last-child
  {
    width: 40px;
    height: 20px;
    background-color: #cdcdcd;
  }
.div-select-scrollbar-down
{
  border-top: solid 1px #fff;
  height: 39px;
  font-size: 22px;
  line-height: 39px;
  color: #999;
  background-color: #cdcdcd;
  text-align: center;
}

JS：

//2015年2月8日
//select美化
var divSelectListIndex = 0;

$(function () {
  initDivSelect();
});
//初始化select美化插件
function initDivSelect() {
  $(".div-select-target").each(function () {
    divSelectListIndex++;
    var select = $(this);
    if (select.css("display") == "none") {
      return;
    }
    else {
      select.css("display", "none")
    }
    if (select.next("div").find(".div-select-list").length == 0) {
      select.after('<div><div class="div-select"><div class="div-select-text"><div></div></div><div class="div-select-arrow"><div>∨</div></div></div></div>');
      $("body").append('<div class="div-select-list div-select-list-' + divSelectListIndex + '"></div>');
    }
    var div = select.next("div");
    var divText = div.find(".div-select-text");
    var divSelect = div.find(".div-select");
    var divArrow = div.find(".div-select-arrow");
    var list = $(".div-select-list-" + divSelectListIndex);
    var scrollbar;
    var scrollbarPosTop;
    var scrollbarPos;
    var scrollbarScrollHeight;
    var scrollbarUp;
    var scrollbarDown;
    var itemHeight;
    var itemCount;
    var itemsHeight;
    var scrollFlag = false;
    function updateText(item) {
      divText.find("div").html(item.html());
    }
    select.find("option").each(function () {
      var option = $(this);
      var text = option.html();
      var value = option.attr("value");
      list.append('<div class="div-select-item" value="' + value + '">' + text + '</div>');
      list.find(".div-select-item:last").click(function () {
        var item = $(this);
        var value = item.attr("value");
        select.val(value);
        select.change();
        list.find(".div-select-selected").removeClass("div-select-selected");
        item.addClass("div-select-selected");
        updateText(item);
        list.hide();
        if (scrollbar) scrollbar.hide();
      });
      list.find(".div-select-item:last").mouseenter(function () {
        var item = $(this);
        var selectedMark = list.find(".div-select-selected");
        selectedMark.removeClass("div-select-selected");
        selectedMark.addClass("div-select-selected-mark");
        list.find(".div-select-item-hover").removeClass("div-select-item-hover");
        item.addClass("div-select-item-hover");
        updateText(item);
      });
    });
    list.mouseleave(function () {
      var selectedMark = list.find(".div-select-selected-mark");
      if (list.find(".div-select-selected").length == 0) {
        selectedMark.addClass("div-select-selected");
        updateText(selectedMark);
      }
      selectedMark.removeClass("div-select-selected-mark");
      list.find(".div-select-item-hover").removeClass("div-select-item-hover");
    });
    if (select.attr("width")) {
      divSelect.width(select.attr("width") - 2);
      divText.width(divSelect.width() - divArrow.width());
    }
    else {
      divText.width(list.width());
    }
    div.keydown(function (e) {
      list.find(".div-select-selected-mark").removeClass("div-select-selected-mark");
      list.find(".div-select-item-hover").addClass("div-select-selected");
      list.find(".div-select-item-hover").removeClass("div-select-item-hover");
      if (e.keyCode == 40) {
        var currentSelected = list.find(".div-select-selected");
        var nextSelected = currentSelected.next(".div-select-item");
        if (nextSelected.length == 0) {
          nextSelected = list.find(".div-select-item:first");
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          list.scrollTop(0);
        } else {
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          var i = 0;
          while (nextSelected.position().top < 0
            || nextSelected.position().top > list.height() - nextSelected.height()) {
            list.scrollTop(list.scrollTop() + nextSelected.height());
            if (i++ > 100) break;
          }
        }
        updateText(nextSelected);
        updateScrollbarPos();
        return false;
      }
      if (e.keyCode == 38) {
        var currentSelected = list.find(".div-select-selected");
        var nextSelected = currentSelected.prev(".div-select-item");
        if (nextSelected.length == 0) {
          nextSelected = list.find(".div-select-item:last");
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          list.scrollTop(list.find(".div-select-item").length * nextSelected.height());
        }
        else {
          nextSelected.addClass("div-select-selected");
          currentSelected.removeClass("div-select-selected");
          var i = 0;
          while (nextSelected.position().top < 0
            || nextSelected.position().top > list.height() - nextSelected.height()) {
            list.scrollTop(list.scrollTop() - nextSelected.height());
            if (i++ > 100) break;
          }
        }
        updateText(nextSelected);
        updateScrollbarPos();
        return false;
      }
      if (e.keyCode == 13) {
        var selectedItem = list.find(".div-select-selected");
        var value = selectedItem.attr("value");
        select.val(value);
        list.hide();
        if (scrollbar) scrollbar.hide();
        select.change();
      }
    });
    itemHeight = list.find(".div-select-item:first").height();
    itemCount = list.find(".div-select-item").length;
    itemsHeight = itemHeight * itemCount;
    if (itemsHeight > list.height()) {
      $("body").append('<div class="div-select-list-scrollbar div-select-list-scrollbar-' + divSelectListIndex + '"><div class="div-select-scrollbar-up">∧</div><div class="div-select-scrollbar-pos"><div></div><div></div></div><div class="div-select-scrollbar-down">∨</div></div>');
    }
    scrollbar = $(".div-select-list-scrollbar-" + divSelectListIndex);
    scrollbarPosTop = scrollbar.find(".div-select-scrollbar-pos").find("div:first");
    scrollbarPos = scrollbar.find(".div-select-scrollbar-pos").find("div:last");
    scrollbarScrollHeight = scrollbarPos.parent().height() - scrollbarPos.height();
    scrollbarUp = scrollbar.find(".div-select-scrollbar-up");
    scrollbarDown = scrollbar.find(".div-select-scrollbar-down");
    scrollbar.click(function () {
      return false;
    });
    scrollbarUp.click(function () {
      list.scrollTop(list.scrollTop() - list.height());
      updateScrollbarPos();
    });
    scrollbarDown.click(function () {
      list.scrollTop(list.scrollTop() + list.height());
      updateScrollbarPos();
    });
    scrollbar.mousedown(function () {
      scrollFlag = true;
    });
    scrollbar.mouseup(function () {
      scrollFlag = false;
    });
    scrollbar.mousemove(function (e) {
      if (scrollFlag) {
        var pos = e.pageY - scrollbar.offset().top - 50;
        if (pos <= scrollbarScrollHeight) {
          scrollbarPosTop.height(pos);
          list.scrollTop(scrollbarPosTop.height() / scrollbarScrollHeight * (itemsHeight - list.height()));
        }
      }
    });
    function updateScrollbarPos() {
      scrollbarPosTop.height(scrollbarScrollHeight * list.scrollTop() * 1.0 / (itemsHeight - list.height()));
      if (list.scrollTop() + list.height() == itemsHeight) {
        scrollbarPosTop.height(scrollbarScrollHeight);
      }
    }
    divSelect.click(function () {
      $("a").bind("click", function () {
        $("a").unbind("click");
        list.hide();
        scrollbar.hide();
      });
      if (list.css("display") == "none") {
        list.show();
        scrollbar.show();
      }
      else {
        list.hide();
        scrollbar.hide();
      }
      list.css("top", divSelect.offset().top + divSelect.height() + 1);
      list.css("left", divSelect.offset().left);
      var listOffsetTop = list.offset().top;
      if ($(window).scrollTop() + $(window).height() < list.offset().top + list.height() + 2) {
        list.css("top", $(window).scrollTop() + $(window).height() - list.height() - 2);
      }
      if (list.width() < divSelect.width()) {
        if (!(itemsHeight > list.height())) {
          list.width(divSelect.width());
        }
        else {
          list.width(divSelect.width() - scrollbar.width());
        }
      }
      scrollbar.find(".div-select-scrollbar-pos").find("div:first").height(0);
      scrollbar.css("left", divSelect.offset().left + list.width() + 1);
      scrollbar.css("top", divSelect.offset().top + divSelect.height() + 1);
      if ($(window).scrollTop() + $(window).height() < listOffsetTop + list.height() + 2) {
        scrollbar.css("top", $(window).scrollTop() + $(window).height() - list.height() - 2);
      }
      var currentSelected = list.find(".div-select-selected");
      if (currentSelected.position().top > list.height() - currentSelected.height()) {
        list.scrollTop(currentSelected.position().top - currentSelected.height() * 2);
      }
      updateScrollbarPos();
      return false;
    });
    $("html,body").bind("click", function () {
      list.hide();
      scrollbar.hide();
    });
    list.click(function () {
      return false;
    });
    function initSelect() {
      list.find(".div-select-selected").removeClass("div-select-selected");
      var matchItem = list.find(".div-select-item[value='" + select.val() + "']");
      if (matchItem.length > 0) {
        matchItem.addClass("div-select-selected");
        updateText(matchItem);
      }
    }
    initSelect();
    select.change(function () {
      initSelect();
    });
  }); // $(".div-select-target").each
}

效果图：

以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持我们！

HTML的select控件美化

CSS: .div-select { border: solid 1px #999; height: 40px; line-height: 40px; cursor: default; } .div-select-text { float: left; background-color: #fff; height: 100%; word-break: keep-all; overflow: hidden; cursor: default; } .div-select-text > div { p
模仿combox(select)控件，不用为美化select烦恼了。

不用整天为美化select控件烦恼了. 1.可批量美化select控件. 2.可以有onchange句柄. 3.触发onchange的函数可带参数. 3.可以得到select的值. 4.可设置像select类似的滚动条(如大于或等于8个数目时出现滚动条) 5.可设置宽度和高度 API参考: //首先生成一个simulateSelect的实例 //构造函数的第一个可选参数为触发onchange的函数,其它的为onchange函数的参数: c = new simulateSelect(s1oncha
js+CSS实现模拟华丽的select控件下拉菜单效果

本文实例讲述了js+CSS实现模拟select控件的下拉菜单效果.分享给大家供大家参考.具体如下: 这是一个JS+CSS技术实现的Select控件效果,模拟出来的,比默认的Select更漂亮,有了这个模板,你修改Select就更方便了,由此你也可以将其制作成CSS下拉菜单,在兼容性方面暂未测试,在IE8下没问题. 运行效果截图如下: 在线演示地址如下: http://demo.jb51.net/js/2015/js-css-select-control-style-codes/ 具体代码如下:
轻松使用jQuery双向select控件Bootstrap Dual Listbox

本文主要为大家介绍了双向select控件Bootstrap Dual Listbox的使用方法,Bootstrap Dual列表是一个为响应Twitter优化的列表框插件,它可以用在所有的现代浏览器和触摸设备上,分享给大家,具体如下: 效果图: 一.使用 1.引用css和js文件 <link href="scripts/bootstrap-3.3.5-dist/css/bootstrap.min.css" rel="stylesheet" /> <
浅析Bootstrip的select控件绑定数据的问题

此问题让我倒弄了一下午时间,最后终于被我拿下.下面小编把我的功劳分享出来,以此来做个备份,同时也希望能帮助到大家. 具体详情如下所示: $(function(){ var stu_no = freeUrl(); var data, subname="",data2; var sbList = new Array(); $.ajax({ async: false , dataType: "json", contentType: "application/js
jquery通过扩展select控件实现支持enter或focus选择的方法

本文实例讲述了jquery通过扩展select控件实现支持enter或focus选择的方法.分享给大家供大家参考,具体如下: /*************************************** * @ author jdkleo * @ date 2013/2/27 JQuery SelKeys USAGE: jQuery.selkeys.enter(jQuery("#selcon")); jQuery.selkeys.focus(jQuery("#selcon
Android Shape控件美化实现代码

如果你对Android系统自带的UI控件感觉不够满意,可以尝试下自定义控件,我们就以Button为例,很早以前Android123就写到过Android Button按钮控件美化方法里面提到了xml的selector构造.当然除了使用drawable这样的图片外今天Android开发网谈下自定义图形shape的方法,对于Button控件Android上支持以下几种属性shape.gradient.stroke.corners等. 我们就以目前系统的Button的selector为例说下: <s
Javascript操作select控件代码实例

这篇文章主要介绍了Javascript操作select控件代码实例,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下新增.修改.删除.选中.清空.判断存在等 1.判断select选项中是否存在Value="paraValue"的Item function jsselectisexititem(objselect,objitemvalue) { var isexit = false; for(var i=0;i<objselect
对WPF中Expander控件美化

示例图: Expander控件功能很常见, 一般用于系统左侧的菜单收缩面板. 主要的组成一个头部(header) 和一个内容(content) 组成. <Expander ExpandDirection="Down" SnapsToDevicePixels="True" VerticalAlignment="Top" Style="{DynamicResource ExpanderStyle1}" > <
关于elementUI select控件绑定多个值(对象)

目录 elementUI select控件绑定多个值 el-select绑定多个值id.value 总结 elementUI select控件绑定多个值通常使用的时候v-model都是绑定一个值,这样没有问题,但在某些需求中会获取选择项的多个值. 那么v-model就需要绑定一个对象,e饿了么的官网说明了绑定对象的时候必须绑定value-key值,否则会出现选择项无法改变的情况. value-key可以使用选择项中的值. 当时没有看文档的时候,自己也想了一个办法,就是绑定选择项的索引值,然后到

HTML的select控件美化

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