How Can I Eliminate Flickering in My .NET Forms Using Reflection?

Enhance .NET Form Performance: Enabling Double Buffering via Reflection

Unwanted flickering in your .NET forms can significantly impact the user experience. While the DoubleBuffered property offers a solution, its protected access level presents a challenge. This article demonstrates how reflection provides a workaround, enabling this crucial property for smoother visual performance.

Leveraging Reflection to Enable Double Buffering

Reflection grants access to a class's non-public members. We'll use it to access and modify the DoubleBuffered property of controls within your form. The following method accomplishes this:

<code class="language-csharp">public static void SetDoubleBuffered(System.Windows.Forms.Control c)
{
   // Performance optimization for Terminal Server sessions
   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>

Important Note on Terminal Services

Enabling DoubleBuffered within a terminal services environment can negatively affect performance. The above helper method includes a check to prevent this, ensuring optimal performance in all scenarios.

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