Split Button
- Category: input
- Purpose: Primary action plus a popup menu of secondary commands.
- API reference: FS.Skia.UI.Controls.SplitButton
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Overview
The Split Button control is a input-category control in the FS.Skia.UI typed front door.
Primary action plus a popup menu of secondary commands. It requires the text attribute. It raises onClick, onSelected. Its accessibility role is Menu.
Build it through the FS.Skia.UI.Controls.Typed.SplitButton module — the typed Props/MVU front door is the
preferred authoring surface (see
Typed control front door). Every
attribute is owned by the model; the control renders against the active Theme,
so its colours, sizing, and density follow the design tokens (see
Controls in the Spec Kit workflow).
Usage example
A runnable example that exercises this control lives in the controls gallery
sample, samples/ControlsGallery/Program.fs. It is compiled as part of the build,
so the example stays in lock-step with the public API.
Preview

A deterministic render-only preview of Split Button (320×160), produced through the
render-only evidence path (Widget.render → SkiaViewer.captureScreenshotEvidence,
ViewerRenderTargetPng) and validated decodable / non-1×1 / non-trivial via
Testing.readPngArtifact. It shows the control rendered against the default
DesignTokens.Light theme.