Form structure

Field Group for Slint

KitFieldGroup · Slint Kit 0.3.1

Column that spaces complete form fields.

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Try the component

Download the complete project, extract it and run cargo run --locked in its folder. Rust 1.92+; Slint Kit 0.3.0 from crates.io. You can also copy the four files below.

Run the app to inspect this composition and resize its window.

ui/app.slint

export { KitFormValidation, HtmlInputKind, NumberInputFormat, KitInputConstraints, KitValidationResult, KitValidityState } from "@kit/kit.slint";
// SPDX-License-Identifier: GPL-3.0-or-later
import { KitFieldGroup, KitTextField, KitTheme, KitThemes } from "@kit/kit.slint";

export component App inherits Window {
    title: "KitFieldGroup example";
    preferred-width: 420px;
    preferred-height: 280px;
    max-width: 100000px;
    max-height: 100000px;
    background: root.theme.canvas;
    in-out property <KitTheme> theme: KitThemes.light;
    in-out property <string> draft-0: "Alex";
    in-out property <string> draft-1: "Morgan";
    VerticalLayout {
        padding: 24px; spacing: 16px; alignment: start;
        Text { text: "Field Group"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitFieldGroup { KitTextField { theme: root.theme; label: "First name"; text <=> root.draft-0; } KitTextField { theme: root.theme; label: "Last name"; text <=> root.draft-1; } }
    }
}

src/main.rs

// SPDX-License-Identifier: GPL-3.0-or-later
slint::include_modules!();

fn main() -> Result<(), slint::PlatformError> {
    let app = App::new()?;
    slint_kit::init_form_validation!(self, app);
    app.run()
}

[package]
name = "slint-kit-field-group-example"
version = "0.1.0"
edition = "2024"
rust-version = "1.92"
license = "GPL-3.0-or-later"
publish = false

[dependencies]
slint-kit = "=0.3.0"
slint = { version = "=1.18.1", default-features = false, features = ["std", "compat-1-18", "backend-winit", "renderer-skia", "accessibility"] }

[build-dependencies]
slint-kit-build = "=0.3.0"

[workspace]

fn main() {
    slint_kit_build::compile("ui/app.slint").expect("compile component example");
}

Files: Cargo.toml · build.rs · ui/app.slint · src/main.rs

Add KitTextField, selectors or custom KitField children. Use KitFieldSet when a group needs a semantic legend.

Its spacing is intended for complete fields and is larger than internal help spacing. It keeps its children’s natural height without managing their validation.

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Visual composition

The file below produces the screenshot. For controller-driven components, it shows the displayed state without supplying the Rust wiring. Create a project.

Show the screenshot source

// SPDX-License-Identifier: GPL-3.0-or-later
import { KitFieldGroup, KitTextField, KitTheme, KitThemes } from "@kit/kit.slint";

export component Example inherits Window {
    title: "KitFieldGroup example";
    preferred-width: 420px;
    preferred-height: 280px;
    max-width: 100000px;
    max-height: 100000px;
    background: root.theme.canvas;
    in-out property <KitTheme> theme: KitThemes.light;
    in-out property <string> status;
    VerticalLayout {
        padding: 24px; spacing: 16px; alignment: start;
        Text { text: "Field Group"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitFieldGroup { KitTextField { theme: root.theme; label: "First name"; text: "Alex"; } KitTextField { theme: root.theme; label: "Last name"; text: "Morgan"; } }
        if root.status != "": Text { text: root.status; color: root.theme.text-secondary; font-size: 12px * root.theme.text-scale; wrap: word-wrap; }
    }
}

Download this example

Public API

Inherits VerticalLayout.

See also

• Field
• Field Set