function(){// 创建新的 option 元素constnewOption=document.createElement('option');// 设置 option 的值和文本newOption.value='newOption';// 设置选项的值newOption.textContent='新选项';// 设置
主要是javascript对select 和option的操作。因为js功力有限,所以只能做的这样子了 页面效果: 前台代码: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="javascripttest.WebForm1" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www....
用JAVASCRIPT来选择网页的Select里面的OPTION <script language="javascript"> function ChangeSelect(c) { f = document.form1; for (var i = 0; i < f.continent.length; i++) { if(f.continent.options[i].value == c){ f.continent.options[i].selected = true; } } } </...
下面是一个简单的示例代码,演示如何使用JavaScript取出select选择的内容: // 获取select元素varselectElement=document.getElementById('mySelect');// 监听change事件selectElement.addEventListener('change',function(){// 获取选择的选项varselectedOption=selectElement.options[selectElement.selectedIndex].text;// 输出...
object.options.add(new Option(label,value))方法向集合里添加一项option对象; object.options.remove(index) 方法移除options集合中的指定项; object.options(index)或options.item(index)可以通过索引获取options集合的指定项; select标记还有一个属性为selectedIndex,通过它可能获取当前选择的option索引:object.selectedInde...
要实现点击select option后显示警告,可以使用JavaScript来监听select元素的change事件,并在事件触发时显示警告。 以下是一个示例代码: ```html <!DOC...
the function changeunitprice () is called when an option is selected problem is it works well with firefox but not IE any ideas? or is there anyway can make same effect in IE? thanks VK #2 Jan 20 '06, 10:45 AM Re: javascript use <option&g t; from <select&g t; as control, ...
option picker picker-view piece progress qrcode rating richtext search select slider span switch text textarea toolbar toolbar-item toggle web xcomponent 媒体组件 video 画布组件 canvas组件 CanvasRenderingContext2D对象 Image对象 CanvasGradient对象 Ima...
QueryOption QueryParameterEntryValueType QueryParameterValueType QueryRecursionOption QueryResultType QueryTestActionResultRequest QueryTestActionResultResponse QueryTestMessageLogEntryRequest QueryTestRuns2Request QueryTestRunsRequest QueryTestRunStatsRequest QueryType Question QuestionsResult QueuedReleaseData QueueOptions ...
QueryOption QueryParameterEntryValueType QueryParameterValueType QueryRecursionOption QueryResultType QueryTestActionResultRequest QueryTestActionResultResponse QueryTestMessageLogEntryRequest QueryTestRuns2Request QueryTestRunsRequest QueryTestRunStatsRequest QueryType Question QuestionsResult QueuedReleaseData QueueOptions ...