自定义 select2 多选

Dol*_*osa 2 html css jquery jquery-select2

我正在使用 select2 创建一个多选字段,如下所示。

我想让占位符(“搜索项目”)总是在字段中看到,即使我已经选择了项目。在下拉列表中选择任何选项后,我尝试使用此方法放置新的占位符:

$(".select2-results__option").click(function() {
    console.log("x");
    $(document).find(".select2-search--inline .select2-search__field").attr("placeholder", "Search items");
});
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但不幸的是,它甚至不会触发控制台日志。

我的另一个问题是,我可以将药丸上的 ("x") 放在文本的右侧而不是左侧吗?

$(".select2-results__option").click(function() {
    console.log("x");
    $(document).find(".select2-search--inline .select2-search__field").attr("placeholder", "Search items");
});
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$(document).ready(function() {
  
  $(".js-example-basic-multiple").select2({
    placeholder: "Select items"
  });
});

$(".select2-results__option").click(function() {
  console.log("x");
  $(document).find(".select2-search--inline .select2-search__field").attr("placeholder", "Search items");
});
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.select2-selection {
  height: 34px !important; 
  font-size: 13px;
  font-family: 'Open Sans', sans-serif;
  border-radius: 0 !important;
  border: solid 1px #c4c4c4 !important;
  padding-left: 4px;
}

.select2-selection--multiple {
  height: 154px !important;
  width: 366px !important;
}

.select2-selection__choice {
  height: 40px;
  line-height: 40px;
  padding-right: 16px !important;
  padding-left: 16px !important;
  background-color: #CAF1FF !important;
  color: #333 !important;
  border: none !important;
  border-radius: 3px !important;
}

.select2-search--inline .select2-search__field {
  line-height: 40px;
  color: #333;
}

.select2-container:hover,
.select2-container:focus,
.select2-container:active,
.select2-selection:hover,
.select2-selection:focus,
.select2-selection:active {
  outline-color: transparent;
  outline-style: none;
}

.select2-results__options li {
  display: block; 
}

.select2-selection__rendered {
  transform: translateY(2px);
}

.select2-selection__arrow {
  display: none;
}

.select2-results__option--highlighted {
  background-color: #CAF1FF !important;
  color: #333 !important;
}

.select2-dropdown {
  border-radius: 0 !important;
  box-shadow: 0px 3px 6px 0 rgba(0,0,0,0.15) !important;
  border: none !important;
  margin-top: 4px !important;
  width: 366px !important;
}

.select2-results__option {
  font-family: 'Open Sans', sans-serif;
  font-size: 13px;
  line-height: 24px !important;
  vertical-align: middle !important;
  padding-left: 8px !important;
}

.select2-results__option[aria-selected="true"] {
  background-color: #eee !important; 
}

.select2-search__field {
  font-family: 'Open Sans', sans-serif;
  color: #333;
  font-size: 13px;
  padding-left: 8px !important;
  border-color: #c4c4c4 !important;
}

.select2-selection__placeholder {
  color: #c4c4c4 !important; 
}
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小智 6

要在选择时显示占位符:

input在选择时调整元素(带有占位符的元素)的大小。所以我们需要覆盖它。如何?这是一种方法:

if($(this).val() && $(this).val().length) {
  $(this).next('.select2-container')
    .find('li.select2-search--inline input.select2-search__field').attr('placeholder', 'Select items');
}
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在值选择时,它inputselect2-container 中获取元素并显式添加一个占位符

要在右侧显示删除图标:

无论如何,您有一堆覆盖 CSS,只需添加几行即可。:)

.select2-selection__choice__remove {
   float: right;
   margin-right: 0;
   margin-left: 2px;
}
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这是代码片段:

if($(this).val() && $(this).val().length) {
  $(this).next('.select2-container')
    .find('li.select2-search--inline input.select2-search__field').attr('placeholder', 'Select items');
}
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.select2-selection__choice__remove {
   float: right;
   margin-right: 0;
   margin-left: 2px;
}
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$(document).ready(function() {
  
  $(".js-example-basic-multiple").select2({
    placeholder: "Select items"
  }).on('change', function(e) {
  	if($(this).val() && $(this).val().length) {
			$(this).next('.select2-container')
      	.find('li.select2-search--inline input.select2-search__field').attr('placeholder', 'Select items');
    }
  });
});
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希望这可以帮助