Question

我尝试为我的网站整合标记/自动填充功能。它通过选项文本进行处理。我几乎接近结果但仍然悬挂。

现在，当您尝试选择选项文本时，将显示相关文本。但现在我想通过选项值显示加德满都或相关选项文本搜索。

例：当我们搜索值 a001 加德满都将出现并选择与 a002 相同时，它将显示 pokhara

＆＃13;

$("select").select2({
  tags: "true",
  placeholder: "Select an option",
  allowClear: true,
  width: '100%',
  createTag: function (params) {
    var term = $.trim(params.term);

    if (term === '') {
      return null;
    }

    return {
     id: term,
     text: term,
     value: true // add additional parameters
    }
  }
});

＆＃13;

.select2-container {
  max-width: 400px;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet"/>
<select class="custom-select"  multiple="multiple">
  <option value="a001">Kathmandu</option>
  <option value="a002">Pokhara</option>
  <option value="a003">Lalitpur</option>
</select>

＆＃13;

我认为在通过值搜索后我很接近并点击它将显示带有id的相关选项。但我只想要选项文本，如 pokhara 加德满都，而不是选择区域的ID。

Answer 1

要在仅输入Id检查输入的字词是否与现有Text匹配时，删除显示的Id和Id的翻倍，如果是只返回匹配选项的Text：

options = [];

// create an array of select options for a lookup
$('.custom-select option').each(function(idx) {
    options.push({id: $(this).val(), text: $(this).text()});
});


$("select").select2({
  tags: "true",
  placeholder: "Select an option",
  allowClear: true,
  width: '100%',
  createTag: function (params) {
    var term = $.trim(params.term);

    if (term === '') {
      return null;
    }
    
    // check whether the term matches an id
    var search = $.grep(options, function( n, i ) {
      return ( n.id === term || n.text === term); // check against id and text
    });
    
    // if a match is found replace the term with the options' text
    if (search.length) 
      term = search[0].text;
    else
      return null; // didn't match id or text value so don't add it to selection
    
    return {
     id: term,
     text: term,
     value: true // add additional parameters
    }
  }
});

$('select').on('select2:select', function (evt) {
  //console.log(evt);
  //return false;
});

.select2-container {
  max-width: 400px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet"/>
<select class="custom-select"  multiple="multiple">
  <option value="a001">Kathmandu</option>
  <option value="a002">Pokhara</option>
  <option value="a003">Lalitpur</option>
</select>

Answer 2

如果您搜索a001，则输出中的输出是显示ID和文本。了解placeholder。

如果值是对象，则该对象应与之兼容选择2的内部对象。 id应该是要查找的id 确定是否应显示占位符。文字应该是选择该选项时显示的占位符。

示例：在文本框

中输入display kathmandu 和 a001 后搜索a001

在select2中使用 placeholder

placeholder: {
        id: "-1",
        text: "Select an option",
      }

＆＃13;

$("select").select2({
  tags: "true",
  placeholder: {
    id: "-1",
    text: "Select an option",
  }, 
  allowClear: true,
  width: '100%',
  createTag: function(params) {
    var term = $.trim(params.term);

    if (term === '') {
      return null;
    }

    return {
      id: term,
      text: term,
      value: true // add additional parameters
    }
  }
});

＆＃13;

.select2-container {
  max-width: 400px;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet" />
<select class="custom-select" multiple="multiple">
  <option value="a001">Kathmandu</option>
  <option value="a002">Pokhara</option>
  <option value="a003">Lalitpur</option>
</select>

＆＃13;

按选项值选择2自动完成

2 个答案: