By setting the ListItem.Value property of the item, you can associate a value with the item that is different from the text. To select an item from the list by default, set the ListItem.Selected property of the item to true. You can control the appearance and behavior of the HtmlSelect...
varx = document.getElementById("mySelect").selectedIndex; vary = document.getElementsByTagName("option"); alert("Is "+ y[x].text+" selected by default? "+ y[x].defaultSelected); Try it Yourself » Description The defaultSelected property returns the default value of the selected attribut...
Go to View | Open in Browser, and then select the desired browser from the list. To open the default WebStorm browser, select Default. Alternatively, hover over the code to show the browser icons popup, and click the icon that indicates the desired browser: If you have only one browser...
();items.Add(newSelectListItem{Text="Option 1",Value="1"});items.Add(newSelectListItem{Text="Option 2",Value="2"});items.Add(newSelectListItem{Text="Option 3",Value="3"});// 设置默认选项的值items.Where(x=>x.Value=="2").FirstOrDefault().Selected=true;ViewBag.Options=items...
document.getElementById("demo").innerHTML="I have changed!"; Try it Yourself » Get the HTML content of a <ul> element with id="myList": lethtml = document.getElementById("myList").innerHTML; Try it Yourself » Delete the HTML content of a <p> element with id="demo": ...
DOCTYPE html><html><head><title>DOMdefaultSelectedProperty</title></head><bodystyle="text-align:center;"><h1style="color:green;">GeeksforGeeks</h1><h2>DOMdefaultSelectedProperty</h2><!-- List of Options --><selectid="GFG"><optionvalue="merge">Merge Sort</option><optionvalue="bubble"...
DOCTYPEhtml><html><head><metacharset="UTF-8"><title>创建电子邮件</title></head><body><p>这是一个电子邮件链接:<ahref="mailto:someone@example.com?Subject=Hello%20again"target="_top">发送邮件</a></p><p><b>注意:</b>单词之间空格用%20代替,以确保浏览器能正常显示文本.</p></body><...
value: 当提交时,发送给服务器的值 disabled: 布尔属性,是否禁用 type: 有四个值可选择: submit: 提交表单 reset: 刷新表单 button: default menu: 菜单 <button>submit</button> datalist 元素(Data list) 当时有 input 元素时,定义了一组可自动补全的可选项。与 option 元素配合使用。 input 元素的 list ...
<input type="radio" name="Region" value="USA"/> USA<BR/> <input type="radio" name="Region" value="Spain"/> Spain<BR/> Top of Page Use a drop-down list of choices If there are many mutually exclusive choices, consider using a drop down lis...
在Page Item 部分下,从 Display As 下拉列表中选择 Select List。从页面顶部的链接中,单击 LOV 链接。 15. 在List of Values 部分下,从 Named LOV 下拉列表中选择 STATUSES。单击 Top 图标 ()。 16. 单击Apply Changes。 17. 单击浏览器中的刷新按钮,您会注意到发生的更改。Start Date 与 End Date 格...