小贝子编程

为什么<select>附加到我的表单中的 2 个元素看起来与表单中固定的前 2 个元素不同？



我有一个获取公司信息的HTML表单。

在这种形式中，我有两个<select multiple>元素(一个用于公司国家/地区，一个用于行业(，我使用JQuery和Bootstrap为它们提供了一种很好的风格，并允许用户以更容易的方式选择多个选项。

问题：当用户点击"；添加公司按钮"；要在表单中添加新的公司部分，附加的<select multiple>元素的样式不相同。区别不在于前两个选择字段之间，而在于前2个选择字段和单击"添加公司"时添加的对之间。前两个显示为我想要的方式(两个矩形框，用户在其中单击下拉列表中的多个选项(，而其他框则显示为无样式的下拉列表，您必须按Ctrl键并单击要选择的选项

请注意，我删除了CSS和页面的其他部分，以保持简单。同样在附加部分中，我删除了一些选项以保持在这篇文章的字符限制内

代码：

$(document).ready(function() {
$(".mul-select").select2({
placeholder: "Select Company Sectors", //placeholder
tags: true,
tokenSeparators: ['/', ',', ';', " "]
});
})
$(document).ready(function() {
$(".mul-select.countries").select2({
placeholder: "Company's Country Locations", //placeholder
tags: true,
tokenSeparators: ['/', ',', ';', " "]
});
})
$(document).ready(function() {
$("body").on("click", ".add_new_frm_field_btn", function() {
var index = $(".company-info").find(".company-info-row").length + 1;
$(".company-info").append(`
<div class="added company-info-row" style="margin:5% 0 0 0;">
<div class="company-data" style="padding:1% 4%;">
<div>
<select name="addedCompany[${index}][sectors][]" id="accountSector_${index}" class="dropdown mul-select" multiple="" tabindex="-1" aria-hidden="true">
<option value="Advertising">Advertising</option>
<option value="Aerospace">Aerospace</option>
<option value="Agriculture">Agriculture</option>
</select>
</div>
<div>
<select name="addedCompany[${index}][countries][]" id="additionalAccountLocations_${index}" class="dropdown mul-select countries" multiple="true">
<option value="Afganistan">Afghanistan</option>
<option value="Albania">Albania</option>
<option value="Algeria">Algeria</option>
</select>
</div>
</div>
<div class="add_del_btn_outer_comp" style="margin:0 4% 0 4%;">
<button class="add_new_frm_field_btn">
<img src="add-icon.png" alt="Add Company Button">
</button>
<button class="remove_node_btn_frm_field" disabled>
<img src="remove-icon.png" alt="Remove Company Button">
</button>
</div>
</div>
</div>
`);
$(".company-info").find(".remove_node_btn_frm_field:not(:first)").prop("disabled", false);
$(".company-info").find(".remove_node_btn_frm_field").first().prop("disabled", true);
});
});
$(document).ready(function() {
//===== delete the form feed row
$("body").on("click", ".remove_node_btn_frm_field", function() {
$(this).closest(".company-info-row").remove();
console.log("success");
});
});
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/css/select2.min.css">
<!--<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="login-box">
<div class="company-info">
<div class="company-info-row">
<div class="company-data" style="padding:1% 4%;">
<div>
<select name="company[sectors][]" id="accountSector" class="dropdown mul-select" multiple>
<option value="Advertising">Advertising</option>
<option value="Aerospace">Aerospace</option>
<option value="Agriculture">Agriculture</option>
<option value="Apparel &amp; Accessories">Apparel &amp; Accessories</option>
<option value="Architecture">Architecture</option>
<option value="Automotive">Automotive</option>
<option value="Banking">Banking</option>
<option value="Biotechnology">Biotechnology</option>
<option value="Building Materials &amp; Equipment">Building Materials &amp; Equipment</option>
<option value="Chemical">Chemical</option>
<option value="Computer">Computer</option>
<option value="Construction">Construction</option>
<option value="Consulting">Consulting</option>
<option value="Creative">Creative</option>
<option value="Culture">Culture</option>
<option value="Defense">Defense</option>
<option value="Education">Education</option>
<option value="Electric Power">Electric Power</option>
<option value="Electronics">Electronics</option>
<option value="Energy">Energy</option>
<option value="Entertainment &amp; Leisure">Entertainment &amp; Leisure</option>
<option value="Finance">Finance</option>
<option value="Food &amp; Beverage">Food &amp; Beverage</option>
<option value="Grocery">Grocery</option>
<option value="Healthcare">Healthcare</option>
<option value="Hospitality">Hospitality</option>
<option value="Insurance">Insurance</option>
<option value="Legal">Legal</option>
<option value="Manufacturing">Manufacturing</option>
<option value="Marketing">Marketing</option>
<option value="Mass Media">Mass Media</option>
<option value="Mining">Mining</option>
<option value="Music">Music</option>
<option value="Petroleum">Petroleum</option>
<option value="Publishing">Publishing</option>
<option value="Real Estate">Real Estate</option>
<option value="Retail">Retail</option>
<option value="Service">Service</option>
<option value="Shipping">Shipping</option>
<option value="Software">Software</option>
<option value="Sports">Sports</option>
<option value="Support">Support</option>
<option value="Technology">Technology</option>
<option value="Telecommunications">Telecommunications</option>
<option value="Television">Television</option>
<option value="Testing, Inspection &amp; Certification">Testing, Inspection &amp; Certification</option>
<option value="Transportation">Transportation</option>
<option value="Travel">Travel</option>
<option value="Venture Capital">Venture Capital</option>
<option value="Water">Water</option>
<option value="Wholesale">Wholesale</option>
</select>
</div>
<div>
<select name="company[countries][]" id="additionalAccountLocations" class="dropdown mul-select countries" multiple>
<option value="Afganistan">Afghanistan</option>
<option value="Albania">Albania</option>
<option value="Algeria">Algeria</option>
<option value="American Samoa">American Samoa</option>
<option value="Andorra">Andorra</option>
<option value="Angola">Angola</option>
<option value="Anguilla">Anguilla</option>
<option value="Antigua & Barbuda">Antigua & Barbuda</option>
<option value="Argentina">Argentina</option>
<option value="Armenia">Armenia</option>
<option value="Aruba">Aruba</option>
<option value="Australia">Australia</option>
<option value="Austria">Austria</option>
<option value="Azerbaijan">Azerbaijan</option>
<option value="Bahamas">Bahamas</option>
<option value="Bahrain">Bahrain</option>
<option value="Bangladesh">Bangladesh</option>
<option value="Barbados">Barbados</option>
<option value="Belarus">Belarus</option>
<option value="Belgium">Belgium</option>
<option value="Belize">Belize</option>
<option value="Benin">Benin</option>
<option value="Bermuda">Bermuda</option>
<option value="Bhutan">Bhutan</option>
<option value="Bolivia">Bolivia</option>
<option value="Bonaire">Bonaire</option>
<option value="Bosnia & Herzegovina">Bosnia & Herzegovina</option>
<option value="Botswana">Botswana</option>
<option value="Brazil">Brazil</option>
<option value="British Indian Ocean Ter">British Indian Ocean Ter</option>
<option value="Brunei">Brunei</option>
<option value="Bulgaria">Bulgaria</option>
<option value="Burkina Faso">Burkina Faso</option>
<option value="Burundi">Burundi</option>
<option value="Cambodia">Cambodia</option>
<option value="Cameroon">Cameroon</option>
<option value="Canada">Canada</option>
<option value="Canary Islands">Canary Islands</option>
<option value="Cape Verde">Cape Verde</option>
<option value="Cayman Islands">Cayman Islands</option>
<option value="Central African Republic">Central African Republic</option>
<option value="Chad">Chad</option>
<option value="Channel Islands">Channel Islands</option>
<option value="Chile">Chile</option>
<option value="China">China</option>
<option value="Christmas Island">Christmas Island</option>
<option value="Cocos Island">Cocos Island</option>
<option value="Colombia">Colombia</option>
<option value="Comoros">Comoros</option>
<option value="Congo">Congo</option>
<option value="Cook Islands">Cook Islands</option>
<option value="Costa Rica">Costa Rica</option>
<option value="Cote DIvoire">Cote DIvoire</option>
<option value="Croatia">Croatia</option>
<option value="Cuba">Cuba</option>
<option value="Curaco">Curacao</option>
<option value="Cyprus">Cyprus</option>
<option value="Czech Republic">Czech Republic</option>
<option value="Denmark">Denmark</option>
<option value="Djibouti">Djibouti</option>
<option value="Dominica">Dominica</option>
<option value="Dominican Republic">Dominican Republic</option>
<option value="East Timor">East Timor</option>
<option value="Ecuador">Ecuador</option>
<option value="Egypt">Egypt</option>
<option value="El Salvador">El Salvador</option>
<option value="Equatorial Guinea">Equatorial Guinea</option>
<option value="Eritrea">Eritrea</option>
<option value="Estonia">Estonia</option>
<option value="Ethiopia">Ethiopia</option>
<option value="Falkland Islands">Falkland Islands</option>
<option value="Faroe Islands">Faroe Islands</option>
<option value="Fiji">Fiji</option>
<option value="Finland">Finland</option>
<option value="France">France</option>
<option value="French Guiana">French Guiana</option>
<option value="French Polynesia">French Polynesia</option>
<option value="French Southern Ter">French Southern Ter</option>
<option value="Gabon">Gabon</option>
<option value="Gambia">Gambia</option>
<option value="Georgia">Georgia</option>
<option value="Germany">Germany</option>
<option value="Ghana">Ghana</option>
<option value="Gibraltar">Gibraltar</option>
<option value="Great Britain">Great Britain</option>
<option value="Greece">Greece</option>
<option value="Greenland">Greenland</option>
<option value="Grenada">Grenada</option>
<option value="Guadeloupe">Guadeloupe</option>
<option value="Guam">Guam</option>
<option value="Guatemala">Guatemala</option>
<option value="Guinea">Guinea</option>
<option value="Guyana">Guyana</option>
<option value="Haiti">Haiti</option>
<option value="Hawaii">Hawaii</option>
<option value="Honduras">Honduras</option>
<option value="Hong Kong">Hong Kong</option>
<option value="Hungary">Hungary</option>
<option value="Iceland">Iceland</option>
<option value="Indonesia">Indonesia</option>
<option value="India">India</option>
<option value="Iran">Iran</option>
<option value="Iraq">Iraq</option>
<option value="Ireland">Ireland</option>
<option value="Isle of Man">Isle of Man</option>
<option value="Israel">Israel</option>
<option value="Italy">Italy</option>
<option value="Jamaica">Jamaica</option>
<option value="Japan">Japan</option>
<option value="Jordan">Jordan</option>
<option value="Kazakhstan">Kazakhstan</option>
<option value="Kenya">Kenya</option>
<option value="Kiribati">Kiribati</option>
<option value="Korea North">Korea North</option>
<option value="Korea Sout">Korea South</option>
<option value="Kuwait">Kuwait</option>
<option value="Kyrgyzstan">Kyrgyzstan</option>
<option value="Laos">Laos</option>
<option value="Latvia">Latvia</option>
<option value="Lebanon">Lebanon</option>
<option value="Lesotho">Lesotho</option>
<option value="Liberia">Liberia</option>
<option value="Libya">Libya</option>
<option value="Liechtenstein">Liechtenstein</option>
<option value="Lithuania">Lithuania</option>
<option value="Luxembourg">Luxembourg</option>
<option value="Macau">Macau</option>
<option value="Macedonia">Macedonia</option>
<option value="Madagascar">Madagascar</option>
<option value="Malaysia">Malaysia</option>
<option value="Malawi">Malawi</option>
<option value="Maldives">Maldives</option>
<option value="Mali">Mali</option>
<option value="Malta">Malta</option>
<option value="Marshall Islands">Marshall Islands</option>
<option value="Martinique">Martinique</option>
<option value="Mauritania">Mauritania</option>
<option value="Mauritius">Mauritius</option>
<option value="Mayotte">Mayotte</option>
<option value="Mexico">Mexico</option>
<option value="Midway Islands">Midway Islands</option>
<option value="Moldova">Moldova</option>
<option value="Monaco">Monaco</option>
<option value="Mongolia">Mongolia</option>
<option value="Montserrat">Montserrat</option>
<option value="Morocco">Morocco</option>
<option value="Mozambique">Mozambique</option>
<option value="Myanmar">Myanmar</option>
<option value="Nambia">Nambia</option>
<option value="Nauru">Nauru</option>
<option value="Nepal">Nepal</option>
<option value="Netherland Antilles">Netherland Antilles</option>
<option value="Netherlands">Netherlands (Holland, Europe)</option>
<option value="Nevis">Nevis</option>
<option value="New Caledonia">New Caledonia</option>
<option value="New Zealand">New Zealand</option>
<option value="Nicaragua">Nicaragua</option>
<option value="Niger">Niger</option>
<option value="Nigeria">Nigeria</option>
<option value="Niue">Niue</option>
<option value="Norfolk Island">Norfolk Island</option>
<option value="Norway">Norway</option>
<option value="Oman">Oman</option>
<option value="Pakistan">Pakistan</option>
<option value="Palau Island">Palau Island</option>
<option value="Palestine">Palestine</option>
<option value="Panama">Panama</option>
<option value="Papua New Guinea">Papua New Guinea</option>
<option value="Paraguay">Paraguay</option>
<option value="Peru">Peru</option>
<option value="Phillipines">Philippines</option>
<option value="Pitcairn Island">Pitcairn Island</option>
<option value="Poland">Poland</option>
<option value="Portugal">Portugal</option>
<option value="Puerto Rico">Puerto Rico</option>
<option value="Qatar">Qatar</option>
<option value="Republic of Montenegro">Republic of Montenegro</option>
<option value="Republic of Serbia">Republic of Serbia</option>
<option value="Reunion">Reunion</option>
<option value="Romania">Romania</option>
<option value="Russia">Russia</option>
<option value="Rwanda">Rwanda</option>
<option value="St Barthelemy">St Barthelemy</option>
<option value="St Eustatius">St Eustatius</option>
<option value="St Helena">St Helena</option>
<option value="St Kitts-Nevis">St Kitts-Nevis</option>
<option value="St Lucia">St Lucia</option>
<option value="St Maarten">St Maarten</option>
<option value="St Pierre & Miquelon">St Pierre & Miquelon</option>
<option value="St Vincent & Grenadines">St Vincent & Grenadines</option>
<option value="Saipan">Saipan</option>
<option value="Samoa">Samoa</option>
<option value="Samoa American">Samoa American</option>
<option value="San Marino">San Marino</option>
<option value="Sao Tome & Principe">Sao Tome & Principe</option>
<option value="Saudi Arabia">Saudi Arabia</option>
<option value="Senegal">Senegal</option>
<option value="Seychelles">Seychelles</option>
<option value="Sierra Leone">Sierra Leone</option>
<option value="Singapore">Singapore</option>
<option value="Slovakia">Slovakia</option>
<option value="Slovenia">Slovenia</option>
<option value="Solomon Islands">Solomon Islands</option>
<option value="Somalia">Somalia</option>
<option value="South Africa">South Africa</option>
<option value="Spain">Spain</option>
<option value="Sri Lanka">Sri Lanka</option>
<option value="Sudan">Sudan</option>
<option value="Suriname">Suriname</option>
<option value="Swaziland">Swaziland</option>
<option value="Sweden">Sweden</option>
<option value="Switzerland">Switzerland</option>
<option value="Syria">Syria</option>
<option value="Tahiti">Tahiti</option>
<option value="Taiwan">Taiwan</option>
<option value="Tajikistan">Tajikistan</option>
<option value="Tanzania">Tanzania</option>
<option value="Thailand">Thailand</option>
<option value="Togo">Togo</option>
<option value="Tokelau">Tokelau</option>
<option value="Tonga">Tonga</option>
<option value="Trinidad & Tobago">Trinidad & Tobago</option>
<option value="Tunisia">Tunisia</option>
<option value="Turkey">Turkey</option>
<option value="Turkmenistan">Turkmenistan</option>
<option value="Turks & Caicos Is">Turks & Caicos Is</option>
<option value="Tuvalu">Tuvalu</option>
<option value="Uganda">Uganda</option>
<option value="United Kingdom">United Kingdom</option>
<option value="Ukraine">Ukraine</option>
<option value="United Arab Erimates">United Arab Emirates</option>
<option value="United States of America">United States of America</option>
<option value="Uraguay">Uruguay</option>
<option value="Uzbekistan">Uzbekistan</option>
<option value="Vanuatu">Vanuatu</option>
<option value="Vatican City State">Vatican City State</option>
<option value="Venezuela">Venezuela</option>
<option value="Vietnam">Vietnam</option>
<option value="Virgin Islands (Brit)">Virgin Islands (Brit)</option>
<option value="Virgin Islands (USA)">Virgin Islands (USA)</option>
<option value="Wake Island">Wake Island</option>
<option value="Wallis & Futana Is">Wallis & Futana Is</option>
<option value="Yemen">Yemen</option>
<option value="Zaire">Zaire</option>
<option value="Zambia">Zambia</option>
<option value="Zimbabwe">Zimbabwe</option>
</select>
</div>
</div>
<div class="add_del_btn_outer_comp" style="margin:0 4% 0 4%;">
<button class="add_new_frm_field_btn">
<img src="add-icon.png" alt="Add Company Button">
</button>
<button class="remove_node_btn_frm_field" disabled>
<img src="remove-icon.png" alt="Remove Company Button">
</button>
</div>
</div>
</div>
</div>
</body>
</html>

任何帮助他们以同样的方式出现和发挥作用的人都将不胜感激。提前谢谢！

我的小提琴 ：https://jsfiddle.net/30jwqfc5/

前两个select元素是select2的实例，后一个元素是原生html select。点击点击处理程序中的添加公司按钮后，您需要为动态生成的select元素实例化select2，$('.mul-select').select2();

这是小提琴https://jsfiddle.net/vpof3ab5/

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