blocks|key|1670803|text|您必须将控件放在窗体runat=server中的某个位置，它可以在母版页或.aspx文件中。仔细检查母版页表单标记是否为runat=server|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1670804|AutoEventWireup是允许您使用的语法的属性。仔细检查母版页、WebForm中的设置，也可以在web.config中进行设置。|1670805|如果这不起作用，你可以对它进行显式编码(我更喜欢)|1670806|<script+runat=server>

protected+override+void+OnInit(EventArgs+e)
++++{
++++++++btnSubmit.Click+%2B=+delegate(object+sender,+EventArgs+e1)
++++++++{

++++++++};
++++++++base.OnInit(e);
++++}

</script>|code-block|syntax|javascript|1670807|UpdatePanel还可以处理引发的服务器端事件，所以请不要使用UpdatePanel来尝试它。我确信你在母版页中有一个ScriptManager|1670808|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

You have to have the control in a form runat=server somewhere, it can be in the Master page or the .aspx file. Double check that the master page form tag is runat=server

AutoEventWireup is the property that allows the syntax you are using. Double check the setting in the Master Page, WebForm and it can also be set in the web.config.

if that doesnt work, you can always explicilty code it (which I prefer)

<pre><code>&lt;script runat=server&gt;

protected override void OnInit(EventArgs e)
 {
 btnSubmit.Click += delegate(object sender, EventArgs e1)
 {

 };
 base.OnInit(e);
 }

&lt;/script&gt;
</code></pre>

UpdatePanel can mess with server side events being raised also, so try it without the UpdatePanel. And I am sure you have a ScriptManager in the Master Page

blocks|key|5629351|text|从您提供的代码看，您似乎缺少页面中的<asp:scriptmanager>。您必须执行以下操作之一：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|5629352|5629353|在页面上有<asp:scriptmanagerproxy>，在母版页上有<asp:scriptmanager>。|ordered-list-item|5629354|在您的页面上有<asp:scriptmanager>，但在母版页上没有<asp:scriptmanager>。|5629355|5629356|就我个人而言，我建议在母版页上使用<form>标记，但这是个人喜好。|5629357|entityMap^0|I|J|0|0|5|O|10|J|0|7|J|Z|J|0|0|H|6|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|J|3|K|5|I|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|L|3|-4|5|6|7|14|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|P|$]]

From the code you supplied, you seem to be missing the <code>&lt;asp:scriptmanager&gt;</code> from your page. You must do one of the following:

<ol>
<li>Have the <code>&lt;asp:scriptmanagerproxy&gt;</code> on the page and the <code>&lt;asp:scriptmanager&gt;</code> on the master page. </li>
<li>Have <code>&lt;asp:scriptmanager&gt;</code> on your page and no <code>&lt;asp:scriptmanager&gt;</code> on the master page.</li>
</ol>

Personally, I recommend having the <code>&lt;form&gt;</code> tag on the master page, but that's personal preference.

blocks|key|5629386|text|你可以随时试着拿出UpdatePanel，看看它是否正常工作。我通常在没有UpdatePanel的情况下开始，让一切按我想要的方式工作，然后添加UpdatePanel并调试任何导致的东西。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5629387|MasterPage中的表单适用于我，所以@Keltex提到的脚本管理器/脚本管理器代理可能是一个问题，尽管我有时会忘记它们，通常会逃脱惩罚。|5629388|有了UpdatePanel，按钮的点击事件将通过Javascript处理，所以你可能会抓取FireBug或类似的东西(取决于浏览器)，并跟踪实际发生的事情。它是否在验证时出错，而您却看不到它？有没有JS错误(控制工具包并不总是完美的)？页面是否真的回发了，只是没有命中事件处理程序？|5629389|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

You can always try taking out the UpdatePanel and seeing if it works. I usually start without the UpdatePanel, get everything working the way I want and then add in the UpdatePanel and debug anything that causes.

The form in the MasterPage works for me so the ScriptManager/ScriptManagerProxy mentioned by @Keltex might be an issue, though I forget them sometimes and usually get away with it.

With the UpdatePanel the button's click event will be handled via Javascript, so you might grab FireBug or equivalent (depending on browser) and follow through what actually is happening. Is it tripping on the validation and you don't see it? Is there a JS error somewhere (the Control Toolkit isn't perfect always)? Is the page actually posting back at all and just not hitting the event handler?

blocks|key|2100558|text|您还可以检查您的ImageButton是否未触发验证。如果确实如此，则将其CausesValidation属性设置为false+(当然，如果它有意义的话)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2100559|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|$]]

You can also check if your ImageButton does not trigger validation. If it does set its CausesValidation property to false (of course if it makes sense).

blocks|key|2100584|text|在我的网页上，我在updatepanel包含的表格中动态创建了imagebutton。这些按钮由以下代码创建：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2100585|for+(int+i+=+0;+i+<+15;+i%2B%2B)
++++{
++++++++TableRow+tr+=+new+TableRow();
++++++++for+(int+j+=+0;+j+<+20;+j%2B%2B)
++++++++{
++++++++++++TableCell+tc+=+new+TableCell();
++++++++++++ImageButton+ib+=+new+ImageButton();
++++++++++++ib.Click+%2B=+new+ImageClickEventHandler(ImageButton1_Click);
++++++++++++ib.ImageUrl+=+"../img/defaultCell.jpg";
++++++++++++ib.ID+=+i+%2B+":"+%2B+j;
++++++++++++tc.Controls.Add(ib);
++++++++++++tc.Width+=+25;
++++++++++++tc.Height+=+25;
++++++++++++tr.Cells.Add(tc);
++++++++}
++++++++GameTable.Rows.Add(tr);
++++}|code-block|syntax|javascript|2100586|}|2100587|图像按钮不会触发点击事件。但是，如果行'ib.ID+=+...‘被注释掉了，他们做到了！这个简单的替代似乎解决了所有的问题。我不知道为什么。如果有人能解释这一点，并告诉我如何触发事件保持设置按钮id的能力，我将非常感谢|2100588|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

On my webpage i am creating imagebuttons dynamically inside a table that is contained by an updatepanel. The buttons are created by this code:

<pre><code>for (int i = 0; i &lt; 15; i++)
 {
 TableRow tr = new TableRow();
 for (int j = 0; j &lt; 20; j++)
 {
 TableCell tc = new TableCell();
 ImageButton ib = new ImageButton();
 ib.Click += new ImageClickEventHandler(ImageButton1_Click);
 ib.ImageUrl = "../img/defaultCell.jpg";
 ib.ID = i + ":" + j;
 tc.Controls.Add(ib);
 tc.Width = 25;
 tc.Height = 25;
 tr.Cells.Add(tc);
 }
 GameTable.Rows.Add(tr);
 }
</code></pre>

}

The image buttons will not trigger click events. HOWEVER, if the line 'ib.ID = ...' is commented out, they do! That single alternation seems to fix all the issues.
I have no idea why. 
If anyone can explain this, and also tell me how to trigger events keeping the ability to set button id's, i'd be much thankful

blocks|key|5629481|text|我认为这可能与您在创建和分配事件处理程序后重新分配id的事实有关？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5629482|你甚至需要分配id吗？-当然这是为你做的？-真的删除'ib.ID+=i%2B+":“%2B+j;‘|5629483|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I think it may have something to do with the fact your re-assigning the id's after creating &amp; assigning the event handler?

Do you even need to assign the id's? - Surely this is done for you anyway? - True removing the 'ib.ID = i + ":" + j;'

blocks|key|2100634|text|我也遇到过类似的问题(不同的场景)。我使用了Page.RegisterRequiresRaiseEvent(ImageButton)，我的onclick事件开始触发。我为什么要这么做？我不知道。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2100635|entityMap^0|M|18|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I had a similar issue (different scenario). I used <code>Page.RegisterRequiresRaiseEvent(ImageButton)</code> and my onclick event started to fire. Why I needed to do that? I don't know.

blocks|key|5629500|text|我有一个类似的问题与图像按钮，并找到了根本原因。您正在使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5629501|"ib.ID+=+i+%2B+":"+%2B+j;“|offset|length|style|CODE|5629502|作为ImageButton的ID，":“是非法使用的名称，因为您以编程方式创建它，所以ASP.NET允许创建它。|5629503|在运行时，如果您查看页面的HTML源，您将看到特殊字符要么被忽略，要么被替换为"_“。因此，页面无法找到正确的控件，因此事件不会被激发。尝试使用纯文本更改名称，事件将被触发。|5629504|entityMap^0|0|1|K|0|2|B|I|1|0|14|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@$D|S|E|T|F|G]|$D|U|E|V|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@$D|X|E|Y|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|M|$]]

I have a similar issue with the image button and found the root cause. You are using

"<code>ib.ID = i + ":" + j;</code>" 

as the ID of the <code>ImageButton</code>, the "<code>:</code>" is illegal name to use, as you are creating it programmatically, ASP.NET allows it to be created. 

At runtime, if you look at the HTML source of the page, you will see the special characters are either ignored or replaced with "<code>_</code>". So the page is unable to find the correct control, thus the event won't fire. Try changing the name with plain text, the event will fire.

blocks|key|4211462|text|确保使用OnClick而不是onClick|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4211463|您的更新面板可能会干扰回发。在没有UpdatePanel的情况下尝试一下，看看这是否是罪魁祸首。|4211464|entityMap^0|4|7|E|7|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|P|8|@]|D|@]|E|$]]]|I|$]]

Make sure you use OnClick rather than onClick 

Your update panel could be messing with the postback. Try it without the UpdatePanel and see if that is the culprit.

blocks|key|4211505|text|ib.ID+=+i+%2B+":"+%2B+j;|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4211506|应更改为|4211507|ib.ID+=+i.toString()%2B":"%2Bj.toString();|code-block|syntax|javascript|4211508|如果仍然不起作用，请尝试使用StringBuilder来构建ID，并稍后将其分配给ib.ID属性|4211509|entityMap^0|0|K|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|V|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

<code>ib.ID = i + ":" + j;</code> 

should be changed to 

<pre><code>ib.ID = i.toString()+":"+j.toString();
</code></pre>

If it still doesn't work try making use of the StringBuilder to buildup the ID and assign it later to ib.ID property

blocks|key|1670924|text|我遇到了同样的问题，ImageButton的OnClick事件没有触发。但实际问题是，在表单级别，我使用了onSubmit="return+false;"|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1670925|entityMap^0|M|7|1H|O|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

I had the same problem that <code>OnClick</code> event of ImageButton was not firing. But the actual problem was, at form level, I had <code>onSubmit="return false;"</code>

blocks|key|5629601|text|我的解决方案是将ImageButton的CausesValidation设置为false。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|5629602|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|$]]

My solution was to set the ImageButton's CausesValidation to false.

blocks|key|2100759|text|我也面临着同样的问题，我正在动态创建一个ImageButton，但点击该事件并未触发。因此，我在if+(IsPostBack)中创建了图像按钮。现在它运行得很好。即使页面被刷新，ImageButton也会被保留。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2100760|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|$]]

I was facing the same issue, where I was dynamically creating an ImageButton and click of that event was not triggering. hence, i created the Image button in if (IsPostBack) . Now it is working fine. And even if the page gets refresh, the ImageButton will be retained.

blocks|key|2100796|text|我刚刚解决了一个启用了OutputCache的类似问题。当从asp:ImageButton更改为asp:Button时，事件被正确激发。可能是asp:ImageButton在OutputCache上有一些bug。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2100797|entityMap^0|U|F|1C|A|1Z|F|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

I've just solved a similar issue where OutputCache was enabled. When changing from <code>asp:ImageButton</code> to <code>asp:Button</code>, the event is correctly fired. Probably <code>asp:ImageButton</code> has some bug with OutputCache.

blocks|key|2100802|text|在上述建议都不起作用后，我再次尝试在OnInit()中调用按钮创建。这解决了我的问题，现在OnClick事件正在触发。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2100803|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|$]]

After none of the above suggestions worked for me, I did one more try by calling the button creation in OnInit(). This fixed my issue and now the OnClick event is firing.

blocks|key|4211596|text|这就是对我有效的解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4211597|如果通过数据绑定控件进行绑定，则使用OnCommand属性而不是OnClick属性|4211598|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

This is solution that worked for me

If you are binding through data bound controls then use OnCommand attr instead of OnClick attr

I have a page that uses a master page, several RequiredFieldValidators, and the Web Toolkit autocomplete extender. The following code only shows the bare minimum of the page:

<pre><code>&lt;%@ Page Language="C#" 
 AutoEventWireup="true" 
 CodeFile="Login.aspx.cs" 
 MasterPageFile="~/master.master" 
 Inherits="Login" %&gt;

&lt;asp:Content id="Content1" 
 contentplaceholderid="ContentPlaceHolder1" 
 runat="server"&gt;
 &lt;asp:UpdatePanel ID="pnlUpdate" runat="server"&gt;
 &lt;ContentTemplate&gt;
 &lt;div&gt;
 &lt;asp:ImageButton class="submitButton" 
 imageurl="images/button_submit.gif" 
 id="btnSubmit" 
 runat="server" 
 onclick="btnSubmit_ServerClick"/&gt;
 &lt;/div&gt;
 &lt;/ContentTemplate&gt;
 &lt;/asp:UpdatePanel&gt;
&lt;/asp:Content&gt;
</code></pre>

Code-behind:

<pre><code>protected void btnSubmit_ServerClick
 (object sender, ImageClickEventArgs e)
{
 //breakpoint here does not get hit
}
</code></pre>

The <code>&lt;form runat="server"&gt;</code> tag is in the master page. The code above does not fire the onclick event. If I get rid of the master page and add a form tag to the page, it works. Is the form tag in the master page not supported, or is this supposed to work somehow?
<a href="http://digitalcopy.warnerbros.com/images/mainmenu.gif?provider=00079&amp;disc=03403AAA-1D20-47F2-91FA-5EE632832659">alt text http://digitalcopy.warnerbros.com/images/mainmenu.gif?provider=00079&amp;disc=03403AAA-1D20-47F2-91FA-5EE632832659</a>

asp:ImageButton not firing onclick event

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。

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我有一个使用母版页、几个RequiredFieldValidators和Web Toolkit自动完成扩展器的页面。下面的代码只显示了页面的最小部分：<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Login.aspx.cs" M...

问asp:ImageButton未触发onclick事件
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问asp:ImageButton未触发onclick事件EN