具有多選選項框選項的動態表單
[英]Dynamic form with multi select option box option
問題描述
我有這個動態表單，如果用戶選擇+按鈕，則可以添加更多表單輸入；如果選擇-按鈕，則可以將其刪除。 在此表單中，我有一個下拉選擇器，我想使用該選擇器並使之生效，以便用戶可以在選擇框中選擇多個選項。 我已經包含了select2 API，但是我無法選擇多個選項。 我有什么可以做的工作嗎？
var room = 1; function education_fields() { room++; var objTo = document.getElementById('education_fields') var divtest = document.createElement("div"); divtest.setAttribute("class", "form-group removeclass"+room); var rdiv = 'removeclass'+room; divtest.innerHTML = '<div class="col-sm-3 nopadding"><div class="form-group"> <input type="text" class="form-control" id="Schoolname" name="Schoolname[]" value="" placeholder="School name"></div></div><div class="col-sm-3 nopadding"><div class="form-group"> <input type="text" class="form-control" id="Major" name="Major[]" value="" placeholder="Major"></div></div><div class="col-sm-3 nopadding"><div class="form-group"> <input type="text" class="form-control" id="Degree" name="Degree[]" value="" placeholder="Degree"></div></div><div class="col-sm-3 nopadding"><div class="form-group"><div class="input-group"> <select multiple="multiple" class="form-control" id="educationDate" name="educationDate[]"><option value="">Date</option><option value="2015">2015</option><option value="2016">2016</option><option value="2017">2017</option><option value="2018">2018</option> </select><div class="input-group-btn"> <button class="btn btn-danger" type="button" onclick="remove_education_fields('+ room +');"> <span class="glyphicon glyphicon-minus" aria-hidden="true"></span> </button></div></div></div></div><div class="clear"></div>'; objTo.appendChild(divtest) } function remove_education_fields(rid) { $('.removeclass'+rid).remove(); }
<head> <meta charset="utf-8"> <meta name="robots" content="noindex, nofollow"> <title>Dynamic Form Fields - Add & Remove Multiple fields - Bootsnipp.com</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="http://code.jquery.com/jquery-1.10.2.min.js"></script> <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <!-- select2 boxes--> <link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/css/select2.min.css" rel="stylesheet" /> <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.5/js/select2.full.min.js"></script> </head> <div class="panel panel-default"> <div class="panel-heading">Dynamic Form Fields - Add & Remove Multiple fields</div> <div class="panel-heading">Education Experience</div> <div class="panel-body"> <div id="education_fields"> </div> <div class="col-sm-3 nopadding"> <div class="form-group"> <input type="text" class="form-control" id="Schoolname" name="Schoolname[]" value="" placeholder="School name"> </div> </div> <div class="col-sm-3 nopadding"> <div class="form-group"> <input type="text" class="form-control" id="Major" name="Major[]" value="" placeholder="Major"> </div> </div> <div class="col-sm-3 nopadding"> <div class="form-group"> <input type="text" class="form-control" id="Degree" name="Degree[]" value="" placeholder="Degree"> </div> </div> <div class="col-sm-3 nopadding"> <div class="form-group"> <div class="input-group"> <select multiple="multiple" class="form-control" id="educationDate" name="educationDate[]"> <option value="">Date</option> <option value="2015">2015</option> <option value="2016">2016</option> <option value="2017">2017</option> <option value="2018">2018</option> </select> <div class="input-group-btn"> <button class="btn btn-success" type="button" onclick="education_fields();"> <span class="glyphicon glyphicon-plus" aria-hidden="true"></span> </button> </div> </div> </div> </div> <button class="btn btn-primary" type="submit">Next</button> <div class="clear"></div> </div> <div class="panel-footer"><small>Press <span class="glyphicon glyphicon-plus gs"></span> to add another form field :)</small>, <small>Press <span class="glyphicon glyphicon-minus gs"></span> to remove form field :)</small></div> </div> <script type="text/javascript"> // select2 place holder text $('#educationDate').select2({ placeholder: 'Pick An Option' }); </script>
1 個解決方案
解決方案1
1 已采納 2019-01-18 19:58:01
使用JavaScript檢查多重選擇框中是否已存在選項
[英]Check if an option already exists in a multi select box using JavaScript
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