blocks|key|1534574|text|摘自http://www.dotnetspider.com/resources/189-AutoPostBack-What-How-works.aspx|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1534575|1534576|+Autopostback是一种根据web控件中的某些事件将页面自动回发到服务器的机制。在某些web控件中，如果将名为auto+post+back的属性设置为true，则当控件中发生事件时，会将请求发送到服务器。|blockquote|style|CODE|1534577|1534578|每当我们在任何控件上将autopostback属性设置为true时，.NET框架都会自动将几行代码插入到为实现此功能而生成的超文本标记语言中。|1534579|1534580|1534581|名为JavaScript的事件方法(+__doPostBack，将名为__EVENTTARGET的隐藏变量和eventtarget+JavaScript事件发送到|ordered-list-item|1534582|1534583|entityMap|0|LINK|mutability|MUTABLE|url|http://www.dotnetspider.com/resources/189-AutoPostBack-What-How-works.aspx^0|2|22|0|0|0|1|C|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]]|C|$]]|$1|D|3|-4|5|6|7|14|8|@]|9|@]|C|$]]|$1|E|3|F|5|G|7|15|8|@$A|16|B|17|H|I]]|9|@]|C|$]]|$1|J|3|-4|5|6|7|18|8|@]|9|@]|C|$]]|$1|K|3|L|5|6|7|19|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|1A|8|@]|9|@]|C|$]]|$1|N|3|-4|5|6|7|1B|8|@]|9|@]|C|$]]|$1|O|3|P|5|Q|7|1C|8|@]|9|@]|C|$]]|$1|R|3|-4|5|6|7|1D|8|@]|9|@]|C|$]]|$1|S|3|-4|5|6|7|1E|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]]]

Taken from <a href="http://www.dotnetspider.com/resources/189-AutoPostBack-What-How-works.aspx" rel="noreferrer">http://www.dotnetspider.com/resources/189-AutoPostBack-What-How-works.aspx</a>:

<blockquote>
 <code>Autopostback</code> is the mechanism by which the page will be posted 
 back to the server automatically based on some events in the web controls. In some of the web controls, the property called auto post back, if set to true, will send the request to the server when an event happens in the control.
 
 Whenever we set the autopostback attribute to true on any of the controls, the .NET framework will automatically insert a few lines of code into the HTML generated to implement this functionality.
 
 <ol>
 <li>A JavaScript method with name __doPostBack (eventtarget, eventargument)</li>
 <li>Two hidden variables with name __EVENTTARGET and __EVENTARGUMENT</li>
 <li>OnChange JavaScript event to the control</li>
 </ol>
</blockquote>

blocks|key|1833878|text|AutoPostBack+=+true允许将控制回发到服务器。它与一个事件相关联。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1833879|示例：|1833880|<asp:DropDownList+id="id"+runat="server"+AutoPostBack="true"+OnSelectIndexChanged="..."/>|code-block|syntax|javascript|1833881|具有上述下拉列表的aspx页面不需要asp:button来执行回发。当您更改下拉列表中的选项时，页面将回发到服务器。|1833882|控件上AutoPostBack的默认值为false。|1833883|entityMap^0|0|J|0|0|0|I|A|0|3|C|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|13|8|@]|D|@]|E|$]]]|R|$]]

<code>AutoPostBack = true</code> permits control to post back to the server. It is associated with an Event.

Example:

<pre><code>&lt;asp:DropDownList id="id" runat="server" AutoPostBack="true" OnSelectIndexChanged="..."/&gt;
</code></pre>

The aspx page with the above drop down list does not need an <code>asp:button</code> to do the post back. When you change an option in the drop down list, the page gets posted back to the server. 

Default value of <code>AutoPostBack</code> on control is false.

blocks|key|1833912|text|如果您想要在web控件上发生任何事件时回发页面，则AutopostBack是分配给web控件的属性。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1833913|你可以看到这篇文章：What+is+AutoPostBack?|offset|length|1833914|1833915|自动回发是一种机制，通过该机制，页面将根据web控件中的某些事件自动回发到服务器。在某些web控件中，名为auto+post+back的属性如果设置为true，则在控件中发生事件时将请求发送到服务器|blockquote|1833916|1833917|1833918|例如，TextBox具有AutoPostBack属性|1833919|1833920|使用AutoPostBack属性指定当TextBox控件失去焦点时是否自动回发到服务器。在TextBox控件中按ENTER或Tab键是最常见的更改焦点的方法。|1833921|1833922|entityMap|0|LINK|mutability|MUTABLE|url|http://www.dotnetspider.com/resources/189-AutoPostBack-What-How-works.aspx|1|http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.textbox.autopostback.aspx^0|0|A|L|0|0|0|0|0|0|C|C|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|12|8|@]|9|@$D|13|E|14|1|15]]|A|$]]|$1|F|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|G|3|H|5|I|7|17|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1A|8|@]|9|@$D|1B|E|1C|1|1D]]|A|$]]|$1|N|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|O|3|P|5|I|7|1F|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|R|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]]|S|$T|$5|U|V|W|A|$X|Y]]|Z|$5|U|V|W|A|$X|10]]]]

AutopostBack is a property which you assign to web controls if you want to post back the page when any event occurs at them.

You may see this article: <a href="http://www.dotnetspider.com/resources/189-AutoPostBack-What-How-works.aspx" rel="noreferrer">What is AutoPostBack?</a>

<blockquote>
 Autopostback is the mechanism, by which the page will be posted back
 to the server automatically based on some events in the web controls.
 In some of the web controls, the property called auto post back, which
 if set to true, will send the request to the server when an event
 happens in the control
</blockquote>

For example, TextBox has <a href="http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.textbox.autopostback.aspx" rel="noreferrer">AutoPostBack</a> property

<blockquote>
 Use the AutoPostBack property to specify whether an automatic postback
 to the server will occur when the TextBox control loses focus.
 Pressing the ENTER or the TAB key while in the TextBox control is the
 most common way to change focus.
</blockquote>

blocks|key|3943716|text|AutoPostBack属性用于设置或返回当用户在TextBox控件中按"ENTER“或"TAB”时是否发生自动回发。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3943717|如果此属性设置为TRUE，则启用自动回发，否则为FALSE。默认值为FALSE。|3943718|entityMap^0|0|C|P|7|0|8|4|O|5|Y|5|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

The <code>AutoPostBack</code> property is used to set or return whether or not an automatic postback occurs when the user presses "ENTER" or "TAB" in the <code>TextBox</code> control.

If this property is set to <code>TRUE</code> the automatic postback is enabled, otherwise <code>FALSE</code>. The default is <code>FALSE</code>.

blocks|key|1538607|text|默认情况下，有一个事件与任何with控件关联。例如，在按钮单击事件的情况下，在复选框的情况下CheckChangedEvent存在。因此，在AutoPostBack为true的情况下，默认情况下调用这些事件，并在服务器端进行事件处理。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1538608|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

There is one event which is default associate with any webcontrol. For example, in case of Button click event, in case of Check box CheckChangedEvent is there. So in case of AutoPostBack true these events are called by default and event handle at server side.

blocks|key|5361358|text|AutopostBack+:|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|5361359|AutopostBack是控件的一个属性，允许在web控件的更改时回发。|5361360|AutopostBack=True和AutoPostBack=False之间的差异：|5361361|如果AutopostBack属性设置为true，则会立即向服务器发送回发|5361362|如果AutopostBack属性设置为false，则不会发生回发。|5361363|entityMap^0|0|E|0|L|E|0|13|3|0|2|L|0|2|M|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|O|$]]

AutopostBack :

AutopostBack is a property of the controls which enables the post back on the changes of the web control.

Difference between AutopostBack=True and AutoPostBack=False:

If the AutopostBack property is set to true, a post back is sent immediately to the server 

If the AutopostBack property is set to false, then no post back occurs.

blocks|key|3943835|text|AutoPostBack属性：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3943836|不能自己提交表单(PostBack)的Asp.net控件，因此ASP.Net提供了一个使用|3943837|+AutoPostBack+=+"true"|code-block|syntax|javascript|3943838|：哪些控件，如DropDownList、CheckBoxList、RadioButtonList等可以执行PostBack(当单击它时)。|3943839|和|3943840|AutoPostBack+=+"false"|3943841|这是控件的默认状态，可以在按钮提交时执行回发。|3943842|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|X|8|@]|9|@]|A|$G|H]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

AutoPostBack property: 

Asp.net controls which cannot submit the Form (PostBack) on their own and
 hence ASP.Net has provided a feature using 

<pre><code> AutoPostBack = "true"
</code></pre>

: which controls like DropDownList, CheckBoxList, RadioButtonList, etc. can perform PostBack(when clicked on it).

And 

<pre><code>AutoPostBack = "false"
</code></pre>

It is the by default state of controls which can perform Postback on button submit.

blocks|key|1834033|text|hai先生|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1834034|1834035|有一个默认与任何any控件关联事件。例如，在按钮单击事件的情况下，在复选框的情况下CheckChangedEvent存在。因此，如果AutoPostBack为true，则缺省情况下将调用这些事件，并在服务器sid|blockquote|1834036|
处进行事件处理|1834037|entityMap^0|0|5|0|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|R|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|S|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|M|$]]

hai sir

<blockquote>
 There is one event which is default associate with any webcontrol.
 For example, in case of Button click event, in case of Check box
 CheckChangedEvent is there. So in case of AutoPostBack true these
 events are called by default and event handle at server sid
</blockquote>

blocks|key|5361299|text|如果希望控件在引发事件时自动回发，则需要将该控件的AutoPostBack属性设置为True。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5361300|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If you want a control to postback automatically when an event is raised, you need to set the AutoPostBack property of the control to True.

What's the difference between <code>AutoPostBack=True</code> and <code>AutoPostBack=False</code>?

Difference between AutoPostBack=True and AutoPostBack=False?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

教程

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云智能顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云AI代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

功能1上新10个字符

功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符功能2描述100个字符。

功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符功能2上新100个字符。

功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符功能5描述100个字符

功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符功能5上新100个字符

功能4上新

文章&问答评论现已支持表情

全新交互，全新视觉，新增快捷键、悬浮工具栏、高亮块等功能并同时优化现有功能，全面提升创作效率和体验

社区富文本编辑器全新改版！诚邀体验～ 

精选全网热门MCP server，让你的AI更好用 🚀

💥开发者 MCP广场重磅上线！

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

聚焦“写作效率、视觉美观与运行性能”三方面进行全面升级，为您提供更高效、稳定的创作环境

社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

诚挚邀请您参与本次调研，分享您的真实使用感受与建议。您的反馈至关重要，感谢您的支持与参与！

社区新版编辑器体验调研

AutoPostBack=True和AutoPostBack=False有什么不同

问AutoPostBack=True和AutoPostBack=False的区别是什么？
EN

回答 9

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问AutoPostBack=True和AutoPostBack=False的区别是什么？EN

回答 9

Stack Overflow用户

Stack Overflow用户

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问AutoPostBack=True和AutoPostBack=False的区别是什么？
EN