我需要获取select标签中所有选定选项的数据,为此我使用了onclick()函数,它只提供了单击选项的数据。但是如果用户选择CTRL * A的所有选项,则不会收到任何数据。我试过使用在这种情况下不起作用的select()。
<?xml version="1.0" encoding="utf-8"?>
<configuration>
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type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
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<system.data>
<DbProviderFactories>
<remove invariant="Oracle.ManagedDataAccess.Client" />
<add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client"
description="Oracle Data Provider for .NET, Managed Driver"
type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.121.2.0, Culture=neutral, PublicKeyToken=89b483f429c47342" />
</DbProviderFactories>
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<runtime>
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<publisherPolicy apply="no" />
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<oracle.manageddataaccess.client>
<version number="*">
<dataSources>
<dataSource alias="MyDataSource"
descriptor="(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=100.100.100.100)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=myservice.com)))" />
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</configuration>
&#13;
//jQuery onclick()
$('select[name=sensors]').on('click', function(){
$('#demo').text($('select[name=sensors]').val());
});
//jQuery select()
$('select[name=sensors]').select(function(){
$('#demo2').text($('select[name=sensors]').val());
});
&#13;
答案 0 :(得分:5)
不要绑定click
,而是绑定change
。这样就可以考虑来自其他类型互动的变化:
$('select[name=sensors]').on('change', function(){
$('#demo').text($('select[name=sensors]').val());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select type='list' name='sensors' multiple>
<option value= "e11">e11</option>
<option value= "e12">e12</option>
<option value= "e13">e13</option>
<option value= "e14">e14</option>
</select>
<div id="demo"></div>
关于select
的实验,以下是the documentation所说的内容:
当用户发出文本时,select事件将发送到元素 在里面选择。此活动仅限于 田野和盒子。
这里没有相关性,因为用户没有选择 text 而是选项。
答案 1 :(得分:1)
这样做
$('select[name=sensors]').change(function(){
$('#demo2').text($(this).val());
});