从下拉菜单中选择而不使用选择标签

Question

如何在不使用select标签的情况下从下拉菜单中选择特定选项？

<div class="form-group"><label class="col-sm-2 control-label">Select Site</label>
    <div class="col-sm-10">
        <div class="row">
            <div class="col-md-3">
                <div class="dropdown" auto-close="outsideClick">
                    <button class="btn btn-secondary btn-lg dropdown-toggle" type="button" id="individualDrop"
                        data-toggle="dropdown">Select Site<span class="caret "></span></button>
                    <ul class="dropdown-menu" role="menu" aria-labelledby="individualDrop">
                        <li id="search">
                            <form method="get">
                                <input class="form-control" type="text" name="search_text" id="search_text"
                                    placeholder="Search" ng-model="searchFilter" ng-change="fetchDevices()">
                        <li role="presentation" ng-repeat="item in  sites | filter:searchFilter" ng-value="item"
                            ng-bind="item.name +' ('+item.site_id+')'" ng-click="item">
                            <a role="menuitem" ng-click="selectEntity(item)">{{item}} </a>
                        </li>
                        </li>
                        </form>
                    </ul>
                </div>
            </div>