Feedback and progress

KitAlert

Contextual message for a result, information or error.

Set severity: AlertSeverity.information, .success, .warning or .error, with an explicit heading. Enable dismissible and handle dismissed to remove the message in owning state.

The component does not close itself. Its accessibility role requests a polite announcement, or assertive for errors, subject to actual backend support.

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Complete example

This complete Slint file is a visual composition used to produce the screenshot above. Internal strings without a label property retain the kit’s default language; system dialogs follow the host platform. Projected state and callbacks requesting a decision need host wiring; the standalone fixture does not supply that controller. Set up the Rust project, then see the typed controller application for working editing, validation and selection.

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

export component Example inherits Window {
    title: "KitAlert example";
    preferred-width: 480px;
    preferred-height: 220px;
    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: "Alert"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        KitAlert { theme: root.theme; severity: AlertSeverity.success; title: "Changes saved"; message: "Your team can now see the updated project."; dismissible: true; dismissed => { root.status = "Dismiss requested"; } }
        if root.status != "": Text { text: root.status; color: root.theme.text-secondary; font-size: 12px * root.theme.text-scale; wrap: word-wrap; }
    }
}

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Public API

Inherits Rectangle. The declarations below come from the component source. Parent properties remain available; see the controller guide for state management.

Properties

Types and variants

Names below use Slint syntax. Shared Rust domain types live in slint_kit; presentation enums come from the Rust types generated by Slint.

Callbacks

• dismissed()

See also

• KitToast
• KitFieldError