userData Behavior
This topic documents a feature of Binary Behaviors, which are obsolete as of Internet Explorer 10.
Enables the object to persist data in user data.
Syntax
XML <Prefix: CustomTag ID=sIDSTYLE=" behavior:url('#default#userData')"/>HTML <ELEMENT STYLE="behavior:url('#default#userData')"ID=sID>Scripting object . style.behavior = "url('#default#userData')"object . addBehavior ("#default#userData")
Possible Values
Prefix Prefix that associates the CustomTag with an XML namespace. This prefix is set using the XMLNS attribute of the HTML tag. CustomTag User-defined tag. sID String that specifies a unique identifier for the object.
Members Table
The following table lists the members exposed by the userData object.
Attributes/Properties
Property Description expires Sets or retrieves the expiration date of data persisted with the userData behavior. XMLDocument Retrieves a reference to the XML Methods
Method Description getAttribute Retrieves the value of the specified attribute. load Loads an object participating in userData persistence from a UserData store. removeAttribute Removes the specified attribute from the object. save Saves an object participating in userData persistence to a UserData store. setAttribute Sets the value of the specified attribute.
Remarks
Security Alert For security reasons, a UserData store is available only in the same directory and with the same protocol used to persist the store.
The userData behavior persists information across sessions by writing to a UserData store. This provides a data structure that is more dynamic and has a greater capacity than cookies. The capacity of the UserData store depends on the security zone of the domain. The following table shows the maximum amount of UserData storage that is available for an individual document and also the total available for an entire domain, based on the security zone.
Security Zone Document Limit (KB) Domain Limit (KB) Local Machine 128 1024 Intranet 512 10240 Trusted Sites 128 1024 Internet 128 1024 Restricted 64 640 See URLACTION_HTML_USERDATA_SAVE for information on how the userData behavior is regulated. See About URL Security Zones Templates for further information on the default URL policy settings for each of the five security zone templates.
The userData behavior persists data across sessions, using one UserData store for each object. The UserData store is persisted in the cache using thesave and load methods. Once the UserData store has been saved, it can be reloaded even if the document has been closed and reopened.
Setting the userData behavior class on the html, head, title, or style object causes an error when the save or load method is called.
The required style can be set inline or in the document header, as follows:
<STYLE>
.storeuserData {behavior:url(#default#userData);}
</STYLE>An ID is optional for userData, but including one improves performance.
The userData behavior is available as of Microsoft Internet Explorer 5, in the Microsoft Win32 and Unix platforms.
Examples
This example uses the userData behavior to preserve information in a UserData Store.
<html>
<head>
<style type="text/css">
.storeuserData {
behavior: url(#default#userData);
}
</style>
<script type="text/javascript">
function fnSaveInput(){
var oPersist=oPersistForm.oPersistInput;
oPersist.setAttribute("sPersist",oPersist.value);
oPersist.save("oXMLBranch");
}
function fnLoadInput(){
var oPersist=oPersistForm.oPersistInput;
oPersist.load("oXMLBranch");
oPersist.value=oPersist.getAttribute("sPersist");
}
</script>
</head>
<body>
<form id="oPersistForm">
<input class="storeuserData" type="text" id="oPersistInput">
<input type="button" value="Load" onclick="fnLoadInput()">
<input type="button" value="Save" onclick="fnSaveInput()">
</form>
</body>
</html>Code example: http://samples.msdn.microsoft.com/workshop/samples/author/persistence/userData_1.htm
The following example uses the userData behavior in a custom tag to preserve information in a UserData Store.
<html xmlns:sdk="">
<head>
<style type="text/css">
sdk\:cacher {
behavior: url(#default#userData);
}
</style>
<script type="text/javascript">
function fnSaveInput(){
cachetag.setAttribute("sPersist",txt1.value);
cachetag.save("cache");
}
function fnLoadInput(){
cachetag.load("cache");
cachetag.value=cachetag.getAttribute("sPersist");
}
</script>
</head>
<body>
<sdk:cacher id="cachetag"></sdk:cacher>
<input type="button" value="Load" onclick="fnLoadInput()">
<input type="button" value="Save" onclick="fnSaveInput()">
<input type="text" id="txt1" value="some value">
</body>
</html>
Applies To
A, ABBR, ACRONYM, ADDRESS, AREA, B, BIG, BLOCKQUOTE, BUTTON, CAPTION, CENTER, CITE, CODE, DD, DEL, DFN, DIR, DIV, DL, DT, EM, FONT,FORM, hn, HR, I, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=hidden, INPUT type=image, INPUT type=password,INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, KBD, LABEL, LI, LISTING, MAP, MARQUEE, MENU, OBJECT, OL, OPTION,P, PLAINTEXT, PRE, Q, S, SAMP, SELECT, SMALL, SPAN, STRIKE, STRONG, SUB, SUP, TABLE, TEXTAREA, TT, U, UL, VAR, XMP
See Also
userData Behavior的更多相关文章
- Augmenting DOM Storage with IE's userData behavior
http://www.javascriptkit.com/javatutors/domstorage2.shtml Augmenting DOM Storage with IE's userData ...
- js本地存储解决方案(localStorage与userData)
WEB应用的快速发展,是的本地存储一些数据也成为一种重要的需求,实现的方案也有很多,最普通的就是cookie了,大家也经常都用,但是cookie的缺点是显而易见的,其他的方案比如:IE6以上的user ...
- IE中的userData
之前做项目时用到了localstorage,但是考虑到浏览器存在IE8以下不兼容问题,所以来介绍以下IE中的userData. 本地存储解决方案很多,比如Flash SharedObject.Goog ...
- 我项目中使用userData的实例 UserData.js
关于userData的介绍,请参见http://hi.baidu.com/kaisep/blog/item/1da9a3312d2da5a15edf0e87.htmlhttp://hi.baidu.c ...
- JavaScript本地存储实践（html5的localStorage和ie的userData）
http://www.css88.com/archives/3717 JavaScript本地存储实践(html5的localStorage和ie的userData) 发表于 2011年06月11日 ...
- javascript 进阶篇1 正则表达式，cookie管理，userData
首先,什么事正则表达式呢,其实引入概念很多时候并不能帮我们明白它到底是什么,所以我先简单描述下,正则表达式,其实就是一个记录字符串规则则的字符串,等我们看完这一部分,也就能明白它到底是什么了. 基本语 ...
- 利用userData实现客户端保存表单数据
对于多数网页制作的朋友,实现在客户端保存在网页表单上的信息,比较多的是采用Cookie技术来实现,这些功能例如:下拉列表框选择的选项,文本框输入的数据等.事实上,我们可以利用微软DHTML默认行为中的 ...
- 浅析Web数据存储-Cookie、UserData、SessionStorage、WebSqlDatabase
Cookie 它是标准的客户端浏览器状态保存方式,可能在浏览器诞生不久就有Cookie了,为什么需要Cookie 这个东东?由于HTTP协议没有状态,所以需要一个标志/存储来记录客户浏览器当前的状态, ...
- js本地储存userData实例
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head ...
随机推荐
- Python值hashlib详解
一.hashlib的基本概念 .什么叫hash:hash是一种算法(不同的hash算法只是复杂度不一样)(.x里代替了md5模块和sha模块,主要提供 SHA1, SHA224, SHA256, SH ...
- 由 Session 和 Cookie 的区别说起
Session 和 Cookie 有什么区别? 最近面试被问到这个问题,和面试官一番讨论了解到面试官心里的答案后,我不太满意. 面对上面的问题,如果是刚毕业时的我,一定会毫不犹豫说出 Cookie 是 ...
- 我所理解的selenium之PO设计模式
下午,花了点时间来整理UI自动化设计,就把我所理解的PO设计模式项目结构脑图整理如下,有不对的地方还望多多包涵.谢谢
- 对最近java基础学习的一次小结
开头想了3分钟,不知道起什么名字好,首先内容有点泛,但也都是基础知识. 对之前所学的java基础知识做了个小结,因为我是跟着网上找的黑马的基础视频看跟着学的,10天的课程硬生生给我看了这么久,也是佛了 ...
- 【SIKIA计划】_11_Unity动画插件-DOTween笔记
[插值移动]using DG.Tweening;public class GetStart:MomoBehaviour{ public Vector3 myValue = new Vector3(0, ...
- Unity3D — — UGUI之RectTransform
Mask.GetComponent<RectTransform>().anchoredPosition(子物体) = hotKey_image.rectTransform.anchored ...
- 用Python做一个翻译软件
前两天吃了平哥的一波狗粮,他给女朋友写了一个翻译软件,自己真真切切的感受到了程序员的浪漫.在学习requests请求的时候做过类似的Demo,给百度翻译发送一个post请求可以实现任意词组的翻译,利用 ...
- Azure-如何排查应用程序网关返回 HTTP Code 502 或客户端得到应用程序网关响应慢的问题(二)
问题描述 经过如何排查应用程序网关返回 HTTP Code 502 或客户端得到应用程序网关响应慢的问题(一)中的排查步骤,可以判断出是由于 Web 服务器自身问题导致的响应异常. 那么可以在 IIS ...
- 使用vbox构建局域网络
update: 也可以启用DHCP自动分配IP地址.(看到过的某一篇博文写过要使用这个服务还得自己搭--就没有动手去实践一下直接手动分配了静态的IP.偶然尝试了一下发现动态IP分配和手动静态IP分配都 ...
- nodejs加载模块心得，mongoose的继承，schematype的mixd介绍
1. require("xxx")可以是原生模块, 也可以是根目录“/node_modules”下的某个模块 2. 多个模块的package.json使用同一个相同模块的时候,将改 ...