blocks|key|152105|text|非常感谢乌丹|type|unstyled|depth|inlineStyleRanges|entityRanges|data|152106|我找到了解决办法。我就像这样声明，然后一切都好了|152107|[DefaultEvent("Click")]
public+partial+class+FlatButton+:+UserControl
{
}|code-block|syntax|javascript|152108|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Thanks a lot for Udan

I found the solution.
I just declare like this, then everything okay now

<pre><code>[DefaultEvent("Click")]
public partial class FlatButton : UserControl
{
}
</code></pre>

blocks|key|151448|text|在“属性”窗口中，您可以选择更改控件的默认事件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|151449|首先，在窗体中选择控件，然后查看属性窗口的顶部。|unordered-list-item|151450|选择“属性”窗口中工具栏上的“事件”按钮，以查看“属性”窗口中的“事件”页。向下滚动到Click事件，并在框中输入Button_Click。选择ENTER键。|151451|151452|151453|​|151454|📷|atomic|offset|length|151455|151456|IDE将名为label_Click()的Click事件处理程序添加到代码中，并将其挂钩到表单上的每个标签。|151457|在事件中填写其余代码|151458|151459|151460|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/56ad6a455ff1860b3f0f27439211bd64.png|imageAlt^0|0|0|0|0|0|0|0|1|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|16|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|17|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|1A|8|@]|9|@]|A|$]]|$1|K|3|L|5|M|7|1B|8|@]|9|@$N|1C|O|1D|1|1E]]|A|$]]|$1|P|3|J|5|6|7|1F|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|1G|8|@]|9|@]|A|$]]|$1|S|3|T|5|D|7|1H|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1I|8|@]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1K|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13|14|-4]]]]

In Properties window, you have a option to change the default event of your control. 

<ul>
<li>First, you select the control in the form, then see the top of the properties window. </li>
<li>Choose the Events button on the tool bar in the Properties window to view the Events page in the Properties window. Scroll down to the Click event, and enter Button_Click in the box. Choose the ENTER key. </li>
</ul>

<img src="https://i.stack.imgur.com/NK7TT.png" alt="Image of Properties window">

<ul>
<li>The IDE adds a Click event handler called label_Click() to the code, and hooks it to each of the labels on the form.</li>
<li>Fill in the rest of the code in the event</li>
</ul>

blocks|key|152123|text|首先，你应该确定功能结构。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|152124|public+delegate+void+_func(your+param);|code-block|syntax|javascript|152125|那就把你的事|152126|public+event+_func+NewEvent;|152127|您应该在您的usercontrol事件中调用它，如果您想要运行此事件，当用户单击您的用户控件中的lable时，应该在lable事件上添加以下内容：|152128|private+void+lbl_click(object+sender,EventArgs+e){
+++if(this.NewEvent+!=+null){
+++++++this.NewEvent(your+param)
+++}
}|152129|当您使用您的用户控件并将其添加到其他项目中时，您可以在属性->事件窗口中看到您的NewEvent。|152130|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

frist you should decleare function structure

<pre><code>public delegate void _func(your param);
</code></pre>

then decleare your event

<pre><code>public event _func NewEvent;
</code></pre>

and you should call it in your usercontrol event,for exam if you want to run this event when user clicked on the lable in your user control,on the lable event you should add this:

<pre><code>private void lbl_click(object sender,EventArgs e){
 if(this.NewEvent != null){
 this.NewEvent(your param)
 }
}
</code></pre>

finlay when you use your user control and add it in your other project you can see your NewEvent in properties->event windows

blocks|key|2745197|text|我遇到了一个与设置默认Click事件有关的特殊情况。虽然@dexiang的自应答是一个简单的解决方案，但我需要在内部处理click事件，并提供外部默认事件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2745198|对于我的用户控件，我有一个picturebox和label，它需要处理单击事件，同时还公开了整个控件的单击。|2745199|-----------------
%7C+-------------+%7C
%7C+%7CPictureBox+%7C+%7C
%7C+-------------+%7C
%7C+++++++++++++++%7C
%7C+-------------+%7C
%7C+%7C++Label++++%7C+%7C
%7C+-------------+%7C
-----------------|code-block|syntax|javascript|2745200|为此，我需要将默认的单击处理程序命名为与Click不同的名称。我选择了[DefaultEvent("ControlClick")]|offset|length|style|CODE|2745201|然后，在UserControl的构造函数中，在InitializeComponent();之后单击控件、picturebox和label的事件处理程序：|2745202|this.Click+%2B=+OnClick;
this.PictureBox1.Click+%2B=+OnClick;
this.Label1.Click+%2B=+OnClick;|2745203|我还使用以下方法公开了自定义事件：|2745204|+public+event+EventHandler+ControlClick;|2745205|单击事件处理程序如下所示：|2745206|private+void+OnClick(object+sender,+EventArgs+e)
+++++{
+++++//+Invoke+parent's+button+click+handler+if+exists
+++++ControlClick?.Invoke(sender,+e);

+++++//...+code+to+process+click...|2745207|希望这对其他人有帮助，因为我最初努力尝试使用Click默认名称。|2745208|entityMap^0|0|0|0|K|5|Z|U|0|N|M|0|0|0|0|0|0|M|5|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|16|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|17|8|@$K|18|L|19|M|N]|$K|1A|L|1B|M|N]]|9|@]|A|$]]|$1|O|3|P|5|6|7|1C|8|@$K|1D|L|1E|M|N]]|9|@]|A|$]]|$1|Q|3|R|5|F|7|1F|8|@]|9|@]|A|$G|H]]|$1|S|3|T|5|6|7|1G|8|@]|9|@]|A|$]]|$1|U|3|V|5|F|7|1H|8|@]|9|@]|A|$G|H]]|$1|W|3|X|5|6|7|1I|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|F|7|1J|8|@]|9|@]|A|$G|H]]|$1|10|3|11|5|6|7|1K|8|@$K|1L|L|1M|M|N]]|9|@]|A|$]]|$1|12|3|-4|5|6|7|1N|8|@]|9|@]|A|$]]]|13|$]]

I had a particular situation related to setting the default Click event. While the self-answer from @dexiang is a simple solution, I needed to handle the click event internally as well as provide external default event.

For my user control, I have a picturebox and label that I need to handle the click events for while also expose the click of the entire control.

<pre><code>-----------------
| ------------- |
| |PictureBox | |
| ------------- |
| |
| ------------- |
| | Label | |
| ------------- |
-----------------
</code></pre>

To accomplish that, I needed to name the default click handler something different than <code>Click</code>. I chose <code>[DefaultEvent("ControlClick")]</code>

Then in the constructor for the UserControl, right after <code>InitializeComponent();</code> I have click event handlers for the control, picturebox, and label:

<pre><code>this.Click += OnClick;
this.PictureBox1.Click += OnClick;
this.Label1.Click += OnClick;
</code></pre>

I also expose the custom event with:

<pre><code> public event EventHandler ControlClick;
</code></pre>

The click event handler looks like:

<pre><code>private void OnClick(object sender, EventArgs e)
 {
 // Invoke parent's button click handler if exists
 ControlClick?.Invoke(sender, e);

 //... code to process click...
</code></pre>

Hopefully this helps someone else as I originally struggled trying to use the <code>Click</code> default name.

I created a custom user control and want it to work like a Button.

It works now, But I have problem, when I click it in visual studio's designer window, it always generate code that handlers user control's Load event, but I want visual studio handler to handle it's click event by default.

How can I do that?

How to make 'click event' is a user control's default action in visual studio

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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我创建了一个自定义用户控件，并希望它像按钮一样工作。它现在工作了，但是我有问题，当我在visual studio的designer窗口中单击它时，它总是生成处理程序用户控件的Load事件的代码，但是我希望visual studio处理程序默认处理它的单击事件。我怎么能这么做？

问如何使“单击事件”成为用户控件在visual studio中的默认操作
EN

回答 4

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