Using bootstrap-select control
This control relies on the Bootstrap front-end framework;
For specific usage of this control, please see the above link;
One of the uses of this control is to search for the options of the select tag to obtain accurate options. After all, there may be many options;
Now I want to dynamically obtain the option data incoming from the background by typing keywords in the search bar, instead of reading all the data at once and then searching;
The specific implementation is as follows:
1. Introduce relevant files:
<head>
<!-- 引入 Bootstrap样式 -->
<link href="${pageContext.request.contextPath}/resources/css/bootstrap.min.css" rel="stylesheet">
<!-- bootstrap-select样式 -->
<link href="${pageContext.request.contextPath}/resources/css/select/bootstrap-select.min.css" rel="stylesheet">
<!-- jQuery (Bootstrap 依赖于 jQuery) -->
<script src="${pageContext.request.contextPath}/resources/js/jquery-3.0.0.min.js"></script>
<!-- Bootstrap -->
<script src="${pageContext.request.contextPath}/resources/js/bootstrap.min.js"></script>
<!-- Bootstrap-select 控件 -->
<script src="${pageContext.request.contextPath}/resources/js/select/bootstrap-select.min.js"></script>
<script src="${pageContext.request.contextPath}/resources/js/select/defaults-zh_CN.min.js"></script>
</head>2. Select tag
<form id="addForm" action="${pageContext.request.contextPath}/admin/authority/manager/saveAdd" method="post">
<p class="form-group">
<p class="input-group">
<span class="input-group-addon" >管理员</span>
<!--触发bootstrap-select需添加class="selectpicker" 搜索功能需添加data-live-search="true" -->
<select data-size="6" class="form-control selectpicker show-tick" data-live-search="true" title="请输入管理员" id="select-manager" name="managerName" data-selectNameUrl="${pageContext.request.contextPath}/admin/authority/managerRole/getManagerByName" >
</select>
</p>
</p>
<p class="form-group">
<p class="input-group">
<span class="input-group-addon" >角 色</span>
<select class="form-control selectpicker show-tick" data-size="6" data-live-search="true" id="select-role" name="roleName" title="请选择角色" >
<c:forEach var="selectRole" items="${selectRoles}" varStatus="statu">
<option value ="${selectRole.id}" >${selectRole.roleName}</option>
</c:forEach>
</select>
</p>
</p>
</form>Until this step , under the administrator's select tag, I did not add any tags, so the options are empty
Rendering:
What I want to achieve now is to trigger an event as soon as a character is typed in the search bar: dynamically obtain background data to add
The solution is to call the developer mode of chrome and find the label generated by the bootstrap-select control, as shown below:
## Knowing the search bar related labels and attributes generated by bootstrap-select, you can select the Search bar trigger event;
3. Trigger event: The effect is as follows: [Related video recommendations: The above is the detailed content of Using bootstrap-select control. For more information, please follow other related articles on the PHP Chinese website! <script type="text/javascript">
$().ready(function(){
//键入字符触发事件:动态获得后台传入select选项数据
//请求的url
var selectNameUrl = $("#select-manager").attr("data-selectNameUrl");
//选择得到搜索栏input，松开按键后触发事件
$("#select-manager").prev().find('.bs-searchbox').find('input').keyup(function () {
//键入的值
var inputManagerName =$('#addForm .open input').val(); //判定键入的值不为空，才调用ajax
if(inputManagerName != ''){
$.ajax({
type: 'Get',
url: selectNameUrl,
data: { //传递到后台的值 managerName: inputManagerName
},
dataType: "Json",
success: function (Selectmanagers) { //清除select标签下旧的option签，根据新获得的数据重新添加option标签
$("#select-manager").empty(); if (Selectmanagers != null) {
$.each(Selectmanagers, function (i,Selectmanager) {
$("#select-manager").append(" <option value=\"" + Selectmanager.id + "\">" + Selectmanager.managerName + "</option>");
}) //必不可少的刷新
$("#select-manager").selectpicker('refresh');
}
}
})
}else
//如果输入的字符为空，清除之前option标签
$("#select-manager").empty();
$("#select-manager").selectpicker('refresh');
});
}); </script>
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