How Can I Eliminate Flickering in .NET Controls Using Reflection?

Hidden tricks of .NET controls: the power of double buffering technology

The problem of flickering controls on forms is annoying, but there is a hidden tool that can solve this problem: double buffering. The DoubleBuffered attribute usually set to protected is the key.

Access protected properties

Traditionally, access to this property is restricted, but with the power of reflection we can bypass this restriction. Here's an improved way to enable double buffering for any control:

<code class="language-c#">public static void SetDoubleBuffered(System.Windows.Forms.Control c)
{
  // 确保远程桌面用户不会启用双缓冲
  if (System.Windows.Forms.SystemInformation.TerminalServerSession)
    return;

  System.Reflection.PropertyInfo aProp = 
    typeof(System.Windows.Forms.Control).GetProperty(
      "DoubleBuffered", 
      System.Reflection.BindingFlags.NonPublic | 
      System.Reflection.BindingFlags.Instance);

  aProp.SetValue(c, true, null); 
}</code>

Using this method, you can easily enable double buffering for your control, eliminating flickering and ensuring a smooth visual experience.

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