blocks|key|1567734|text|Winform面板有一个DoubleBuffered+property。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1567735|编辑:我应该注意到它是受保护的。其他人描述了如何将其子类化。:)|1567736|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.windows.forms.control.doublebuffered.aspx^0|C|N|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

Winform panels have a <a href="http://msdn.microsoft.com/en-us/library/system.windows.forms.control.doublebuffered.aspx" rel="nofollow noreferrer">DoubleBuffered property</a>. 

Edit: I should have noticed that it was protected. Others have described how to sub-class it. :)

blocks|key|1567812|text|您需要从面板或PictureBox派生。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1567813|根据您选择启用缓冲的方式，这会产生一些影响。|1567814|如果你设置了this.DoubleBuffer标志，那么你应该没问题。|1567815|如果您手动更新样式，则必须在WM_PAINT中自己绘制窗体。|1567816|如果你真的觉得雄心勃勃，你可以维护和绘制自己的后台缓冲区作为位图。|1567817|using+System.Windows.Forms;

public+class+MyDisplay+:+Panel
{
++++public+MyDisplay()
++++{
++++++++this.DoubleBuffered+=+true;

++++++++//+or

++++++++SetStyle(ControlStyles.AllPaintingInWmPaint,+true);
++++++++SetStyle(ControlStyles.OptimizedDoubleBuffer,+true);
++++++++UpdateStyles();
++++}
}|code-block|syntax|javascript|1567818|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|U|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|V|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

You need to derive from Panel or PictureBox. 

There are ramifications to this depending on how you choose to enable the buffering. 

If you set the this.DoubleBuffer flag then you should be ok. 

If you manually update the styles then you have to paint the form yourself in WM_PAINT.

If you really feel ambitious you can maintain and draw your own back buffer as a Bitmap.

<pre><code>
using System.Windows.Forms;

public class MyDisplay : Panel
{
 public MyDisplay()
 {
 this.DoubleBuffered = true;

 // or

 SetStyle(ControlStyles.AllPaintingInWmPaint, true);
 SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
 UpdateStyles();
 }
}
</code></pre>

blocks|key|1567854|text|可以在Panel的派生类中公开DoubleBuffered-Property|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1567855|public+class+DoubleBufferedPanel+:+Panel
{++++++++
++++[DefaultValue(true)]
++++public+new+bool+DoubleBuffered
++++{
++++++++get
++++++++{
++++++++++++return+base.DoubleBuffered;
++++++++}
++++++++set
++++++++{
++++++++++++base.DoubleBuffered+=+value;
++++++++}
++++}
}|code-block|syntax|javascript|1567856|entityMap^0|3|5|F|E|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

You can make the <code>DoubleBuffered</code>-Property public in a derivided class of <code>Panel</code>:

<pre><code>public class DoubleBufferedPanel : Panel
{ 
 [DefaultValue(true)]
 public new bool DoubleBuffered
 {
 get
 {
 return base.DoubleBuffered;
 }
 set
 {
 base.DoubleBuffered = value;
 }
 }
}
</code></pre>

blocks|key|1352567|text|另一种方法是使用InvokeMember方法调用成员doublebuffered：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1352568|+typeof(Panel).InvokeMember("DoubleBuffered",+BindingFlags.SetProperty++++
++++++++++++%7C+BindingFlags.Instance+%7C+BindingFlags.NonPublic,+null,
++++++++++++panel2,+new+object[]+{+true+});+|code-block|syntax|javascript|1352569|通过这种方式，您不必创建子类|1352570|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Another way of doing this is to invoke the member doublebuffered, using the InvokeMember method:

<pre><code> typeof(Panel).InvokeMember("DoubleBuffered", BindingFlags.SetProperty 
 | BindingFlags.Instance | BindingFlags.NonPublic, null,
 panel2, new object[] { true }); 
</code></pre>

By doing it this way, you don't have to create a subclass

blocks|key|1352614|text|扩展一下User79775的答案，如果你想在VB.net中实现这一点，可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1352615|Imports+System.Windows.Forms

Public+Class+MyDisplay
++++Inherits+Panel

++++Public+Sub+New()
++++++++Me.DoubleBuffered+=+True

++++++++'+or

++++++++SetStyle(ControlStyles.AllPaintingInWmPaint,+True)
++++++++SetStyle(ControlStyles.OptimizedDoubleBuffer,+True)
++++++++UpdateStyles()
++++End+Sub
End+Class|code-block|syntax|javascript|1352616|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Just expanding on User79775's answer, if you're trying to achieve this in VB.net, do so like this:

<pre><code>Imports System.Windows.Forms

Public Class MyDisplay
 Inherits Panel

 Public Sub New()
 Me.DoubleBuffered = True

 ' or

 SetStyle(ControlStyles.AllPaintingInWmPaint, True)
 SetStyle(ControlStyles.OptimizedDoubleBuffer, True)
 UpdateStyles()
 End Sub
End Class
</code></pre>

blocks|key|1352692|text|我和你的处境完全一样。我在C#+WinForm中放置了一个面板，并将其用作几何动画的显示区。由计时器触发的多次重绘操作，再加上偶尔的窗口大小调整，都会导致面板严重闪烁。这里提供的其他解决方案似乎都依赖于激活DoubleBuffered标志，但这在我的经验中没有任何区别。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1352693|正确的方法是使用System.Drawing.BufferedGraphics类并在应用程序中利用它。|1352694|这是它的一个overview，以及一个实际工作的example+(不再闪烁！)|1352695|这个例子有点夸张，因为它强调了在翻转图形缓冲区之前执行渲染的至少两种方法；您只需要在实现中保留您喜欢的一种。|1352696|我个人选择将面板子类化为一个新的DoubleBufferedPanel类。我简单地使用了基础面板的Paint()方法，并调用了Refresh()来翻转缓冲区。|1352697|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/dotnet/desktop/winforms/advanced/double-buffered-graphics?view=netframeworkdesktop-4.8|1|https://docs.microsoft.com/en-us/dotnet/api/system.drawing.bufferedgraphics^0|2V|E|0|8|V|0|6|8|0|O|7|1|0|0|G|J|1D|7|1R|9|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@$9|11|A|12|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|13|8|@]|D|@$9|14|A|15|1|16]|$9|17|A|18|1|19]]|E|$]]|$1|J|3|K|5|6|7|1A|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|1B|8|@$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]|$9|1G|A|1H|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|1I|8|@]|D|@]|E|$]]]|O|$P|$5|Q|R|S|E|$T|U]]|V|$5|Q|R|S|E|$T|W]]]]

I was in the exact same predicament as you. I put a Panel inside of a C# WinForm and used it as a display zone for a geometric animation. Multiple redraw operations triggered by a timer, combined with the occasional window resizing, all caused that Panel to flicker terribly. The other solutions offered here all seem to rely on activating the <code>DoubleBuffered</code> flag, but this never made any difference in my experience.
The proper way to go about it is to use the <code>System.Drawing.BufferedGraphics</code> class and harness it in your application.
Here's an <a href="https://docs.microsoft.com/en-us/dotnet/desktop/winforms/advanced/double-buffered-graphics?view=netframeworkdesktop-4.8" rel="nofollow noreferrer">overview</a> of it, and an <a href="https://docs.microsoft.com/en-us/dotnet/api/system.drawing.bufferedgraphics" rel="nofollow noreferrer">example</a> that actually works (no more flickering!).
That example is a bit overkill since it highlights at least two ways to perform the rendering before flipping the graphic buffers; you only need to keep the one you prefer in your implementation.
I personally chose to subclass the Panel into a new <code>DoubleBufferedPanel</code> class. I simply use the base Panel's <code>Paint()</code> method combined with a call to <code>Refresh()</code> to flip the buffers.

I have a panel that has a roulette wheel on it, and I need to double buffer the panel, so that it stops flickering. Can anyone help me out?

EDIT:

Yes, I have tried that.

panel1.doublebuffered does not exist, only this.doublebuffered. And I don't need to buffer the Form, just the Panel.

How do I double buffer a Panel?

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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我有一个面板，上面有一个轮盘赌轮，我需要对面板进行双缓冲，这样它就不会闪烁。有人能帮我吗？编辑：是的，我试过了。panel1.doublebuffered不存在，只存在this.doublebuffered。我不需要缓冲表单，只需要缓冲面板。

问如何对面板进行双重缓冲？
EN

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问如何对面板进行双重缓冲？EN