Question

我正在使用具有多选的React-Select组件。我面临的一个问题是，如果用户选择3或4个选项，则UI看起来非常糟糕，因为文本开始溢出并导致组件水平和垂直增长。

我希望有一个行为，其中组件的大小保持不变，如果用户选择更多选项，那么它只显示＆＃34; ...＆＃34; （省略号）而不是尝试显示新选择的选项。

我想要的行为更加内联于此组件

http://instructure-react.github.io/react-select-box/

了解它如何处理多选。

我现在不想换掉组件，因为我们已经使用React-Select进行了大量测试。

如果不删除react-select，你可以给我一些关于如何实现这一目标的指导。

Answer 1

我设法既实现了省略号效果，又将显示屏排成一排，这是一个有效的例子 https://codesandbox.io/s/v638kx67w7 希望对您有帮助

Answer 2

这是给定的react-select元素生成的Html

. react-select-box-container {
  position: relative;
  width: 240px;
  display: inline-block;
  background-color: #fff;
  border-radius: 4px;
  text-align: left;
  box-shadow: 0 0 2px rgba(0, 0, 0, .3);
}

.react-select-box {
  padding: 15px 0;
  display: inline-block;
  cursor: pointer;
  border: none;
  width: 100%;
  text-align: left;
  background-color: transparent;
}

.react-select-box:focus {
  outline: 0;
  box-shadow: 0 0 4px #0493D1;
}

.react-select-box:before {
  content: ' ';
  z-index: 1;
  position: absolute;
  height: 20px;
  top: 15px;
  right: 34px;
  border-left: 1px solid #CBD2D7;
}

.react-select-box:after {
  content: ' ';
  position: absolute;
  z-index: 1;
  top: 23px;
  right: 13px;
  border-top: 6px solid #7B8E9B;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
}

.react-select-box-label,
.react-select-box-option {
  line-height: 16px;
  font-size: 12px;
  font-weight: bold;
  color: #7B8E9B;
}

.react-select-box-label {
  padding: 0 40px 0 20px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: #0493D1;
}

.react-select-box-empty .react-select-box-label {
  color: #7B8E9B;
}

.react-select-box-click-outside-layer {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
}

.react-select-box-clear {
  position: absolute;
  top: 15px;
  right: 0;
  width: 35px;
  height: 20px;
  background-color: #fff;
  text-indent: -9999em;
  z-index: 3;
  border: none;
}

.react-select-box-clear:before {
  content: 'Ã—';
  position: absolute;
  top: 2px;
  left: 10px;
  z-index: 1;
  background-color: #7B8E9B;
  border-radius: 100%;
  font-size: 13px;
  color: #fff;
  line-height: 1;
  width: 15px;
  height: 15px;
  text-indent: 0;
  text-align: center;
}

.react-select-box-clear:hover,
.react-select-box-clear:focus {
  outline: 0;
}

.react-select-box-clear:hover:before,
.react-select-box-clear:focus:before {
  background-color: #0493D1;
}

.react-select-box-hidden {
  display: none
}

.react-select-box-options {
  margin: 2px 0 0;
  position: absolute;
  padding: 10px 0;
  width: 240px;
  top: 100%;
  left: 0;
  z-index: 4;
  background-color: #fff;
  border-radius: 4px;
  box-shadow: 0 0 2px rgba(0, 0, 0, .3);
}

.react-select-box-options-list {
  list-style: none outside;
  margin: 0;
  padding: 0;
}

.react-select-box-option {
  padding: 10px 20px;
  margin: 0;
  cursor: pointer;
  display: block;
  line-height: 1.2;
  text-decoration: none;
}

.react-select-box-option:hover {
  color: #0493D1;
  background-color: #f4f4f4;
}

.react-select-box-option-selected {
  color: #CBD2D7;
}

.react-select-box-multi .react-select-box-option {
  padding-left: 42px;
  position: relative;
}

.react-select-box-multi .react-select-box-option:before {
  content: ' ';
  position: absolute;
  line-height: 1;
  text-align: center;
  left: 20px;
  top: 9px;
  border-radius: 3px;
  height: 12px;
  width: 12px;
  margin-right: 10px;
  border: 1px solid #7B8E9B;
  background: #f9f9f9;
  vertical-align: middle;
}

.react-select-box-multi .react-select-box-option-selected:before {
  content: 'âœ“';
}

.react-select-box-multi .react-select-box-option-selected {
  color: #1F3344;
}

.react-select-box-option:focus,
.react-select-box-option-focused {
  color: #0493D1;
  outline: 0;
  background-color: #DDE2E5;
}

.react-select-box-close {
  color: #0493D1;
  text-transform: uppercase;
  background-color: transparent;
  border: none;
  padding: 5px 0;
  display: block;
  text-align: center;
  width: 100%;
  font-weight: bold;
  cursor: pointer;
  outline: none;
}

.react-select-box-close:hover,
.react-select-box-close:focus {
  text-decoration: underline;
}

.react-select-box-empty .react-select-box-close {
  color: #CBD2D7;
}

.react-select-box-native {
  position: absolute;
  left: -99999em;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div class="react-select-box-container react-select-box-multi react-select-box-empty">
  <button id="react-select-box-2" class="react-select-box" tabindex="0" aria-hidden="true">
        <div class="react-select-box-label">
          Favorite Colors
        </div></button>

  <div class="react-select-box-options react-select-box-hidden" aria-hidden="true" tabindex="0">
    <div class="react-select-box-off-screen">
      <a id="react-select-box-2-0" href="#" class="react-select-box-option" tabindex="-1">Red</a>
      <a id="react-select-box-2-1" href="#" class="react-select-box-option" tabindex="-1">Green</a>
      <a id="react-select-box-2-2" href="#" class="react-select-box-option" tabindex="-1">Blue</a>
    </div>
    <button class="react-select-box-close">Close</button>
  </div>

  <div class="react-select-box-native">
    <label for="react-select-box-2-native-select">Favorite Colors</label>
    <select id="react-select-box-2-native-select" multiple="multiple">
            <option value="red">
              Red
            </option>
    
            <option value="green">
              Green
            </option>
    
            <option value="blue">
              Blue
            </option>
          </select>
  </div>
</div>

React-Select，Multi Select和Text Overflow

2 个答案: