winforms-high-dpi-fluent-layout

Use nested TableLayoutPanels with AutoSize for caption columns, Percent for content columns, and Anchor (never Dock) on controls inside cells. Keep individual panels to 2-4 columns and group sections with GroupBoxes containing their own layouts.

Set AutoSize with GrowAndShrink on each button and anchor them within an AutoSize TableLayoutPanel row. For reusable uniform sizing, use a FlowLayoutPanel-derived ButtonContainer that computes the maximum PreferredSize and applies it as each button's MinimumSize.

The offset happens when fullscreen state variables are not initialized before the first fullscreen call. Store WindowState and FormBorderStyle in the constructor before calling EnterFullscreen, then set FormBorderStyle to None and WindowState to Maximized.

No, controls in TableLayoutPanel cells must use Anchor instead of Dock. Docking inside cells breaks the layout engine's sizing calculations; Anchor with the appropriate sides achieves correct stretching behavior.

Use Form.RestoreBounds instead of Location and Size, because those return incorrect values when the form is maximized or minimized. Read RestoreBounds during the FormClosing event and restore position, size, and WindowState in OnLoad.

The WinForms Designer only parses InitializeComponent in the .Designer.cs file. Moving control instantiation or property assignment into helper methods like CreateDetailsPanel makes those controls invisible to the Designer and breaks serialization.