How Can I Eliminate Flickering in My .NET Controls?

Double-buffered .NET control: solving flickering issues

The flickering controls on the form are very annoying. Fortunately, .NET provides a way to solve this problem using double buffering. Double buffering improves the performance of repeatedly updating controls by prerendering changes off-screen and then updating the control once. Ultimately, this eliminated the flickering.

To enable double buffering, we cannot access the DoubleBuffered property directly as it is marked as protected. Instead, we will utilize reflection to dynamically call this property.

The following is an optimized version of the solution:

<code class="language-c#">public static void SetDoubleBuffered(System.Windows.Forms.Control c)
{
    // 检查用户是否在终端服务会话（例如，远程桌面）中工作
    if (System.Windows.Forms.SystemInformation.TerminalServerSession)
        return;

    // 使用反射获取受保护的“DoubleBuffered”属性
    var aProp = typeof(System.Windows.Forms.Control).GetProperty(
        "DoubleBuffered", 
        System.Reflection.BindingFlags.NonPublic | 
        System.Reflection.BindingFlags.Instance);

    // 将“DoubleBuffered”属性设置为 true
    aProp.SetValue(c, true, null);
}</code>

You can eliminate flicker and enhance the user experience of your form by calling the SetDoubleBuffered() method on the desired controls.

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