Smooth Scrolling FlowLayoutPanel with Drag & Momentum

[ZeroByteZ 4]

I wanted to share a little something with FlowLayoutPanel for WinForms that feels way smoother and more natural to use. If you’ve ever wished your panel could scroll with momentum or wanted to drag/scroll like on a touchscreen, this might be just what you need.

What it does:

• Momentum scrolling: Scroll with the mouse wheel, and it keeps moving a bit after you stop like it has inertia!

• Drag-to-scroll: Click and drag anywhere on the panel (even on its child controls) to scroll up and down.

• Optimized redraw: Only redraws what’s visible, so it stays fast even with lots of controls.

• Tracks focused controls: Knows which child control is focused and lets you hook into that.

• Thread-safe: You can safely add or clear controls from background threads.

Here’s the full code:

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