WinForms: How to Fix Flickering on Panel Control During Resize Events
I'm testing a new approach and Can someone help me understand I'm experiencing a significant flickering issue with a Panel control in my WinForms application when resizing the form. After some investigation, I discovered that the flickering occurs primarily when I dynamically add or remove controls from the panel during the resize event. I have tried overriding the `OnResize` method of the form and then calling `SuspendLayout()` and `ResumeLayout()` on the panel, but it doesn't seem to help. Here's a simplified version of my code: ```csharp protected override void OnResize(EventArgs e) { base.OnResize(e); myPanel.SuspendLayout(); // Dynamically resizing or adding controls UpdatePanelControls(); myPanel.ResumeLayout(); } private void UpdatePanelControls() { // Clear existing controls myPanel.Controls.Clear(); // Add new controls based on some logic for (int i = 0; i < 5; i++) { var button = new Button(); button.Text = "Button " + i; button.Width = 100; myPanel.Controls.Add(button); } } ``` Additionally, I've tried setting the `DoubleBuffered` property of the panel to `true`, but that only seems to reduce the flickering slightly without eliminating it. The flickering is more noticeable on slower machines, which is a concern because I aim to deploy this application to users with varying hardware capabilities. I've also looked into using `BeginUpdate()` and `EndUpdate()` methods for the panel, but they don't exist for the `Panel` control. Does anyone have recommendations for reducing or eliminating the flickering during resizing, or is there a specific pattern or best practice I might be missing? I'm using .NET Framework 4.8 and Visual Studio 2019 for development. This is part of a larger API I'm building. I've been using Csharp for about a year now. Thanks for any help you can provide! I'm working with Csharp in a Docker container on Ubuntu 20.04. Any help would be greatly appreciated!