我找到了flask-jquery-ajax示例,其中用户从车辆“ Make”下拉菜单中选择一个项目,通过向AJAX请求选择的车型列表来填充车辆“ Model”下拉菜单。
我尝试用 bootstrap-select 替换下拉菜单,并且在第二个下拉菜单中添加 class =“ selectpicker form- control”后, 在选择了第一个下拉菜单后,不再填充任何内容。
这是HTML模板:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Flask Jquery AJAX Drop Down Menu Example</title> <link rel="stylesheet" type="text/css" href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" > <link rel="stylesheet" type="text/css" href=//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.2/css/bootstrap-select.min.css> <link rel="stylesheet" href="{{ url_for('static', filename='web.css') }}"> <!-- Custom styles for this template --> <link href="http://getbootstrap.com/examples/non-responsive/non-responsive.css" rel="stylesheet"> </head> <body> <h1>Select Vehicle</h1> <form class="form-horizontal" action="/" method="POST" > <div class="input-group"> <span class="input-group-addon">Make:</span> {{ form.make(id="make_select", class="selectpicker form-control") }} </div> <div class="input-group"> <span class="input-group-addon">Model:</span> {{ form.model(id="model_select", class="selectpicker form-control") }} </div> <button type="submit">Submit</button> </form> {% if chosen_make %} <h2>You selected:</h2> <ul> <li>Make ID: {{ chosen_make }}</li> <li>Model ID: {{ chosen_model }}</li> </ul> {% endif %} <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script> <script type="text/javascript" src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script> <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.2/js/bootstrap-select.min.js"></script> <script> $('.selectpicker').selectpicker(); </script> <script src="/assets/vehicle.js"></script> </body> </html>
这是负责填充下拉菜单的JavaScript 代码:
$("#make_select").change(function() { var make_id = $(this).find(":selected").val(); var request = $.ajax({ type: 'GET', url: '/models/' + make_id + '/', }); request.done(function(data){ var option_list = [["", "--- Select One ---"]].concat(data); $("#model_select").empty(); for (var i = 0; i < option_list.length; i++) { $("#model_select").append( $("<option></option>").attr( "value", option_list[i][0]).text(option_list[i][1]) ); } }); });
为什么 类=“selectpicker形式控制” 从 引导选 事业的第二个下拉菜单中得到不再填充?
完成AJAX之后,您需要重新加载插件:
$('#model_select').selectpicker('refresh');
要么
success: function(data) { $("#model_select").html(data).selectpicker('refresh'); }