KryptonMessageBoxExtended

Overview

KryptonMessageBoxExtended is a static API in Krypton.Toolkit.Utilities that extends KryptonMessageBox with additional buttons, icons, timeouts, countdown buttons, rich footer content, custom checkbox text, and layout options.

Namespace: Krypton.Toolkit.Utilities
Assembly: Krypton.Toolkit.Utilities
Type: Static class (ToolboxItem(false))

Comparison with KryptonMessageBox

Feature	`KryptonMessageBox`	`KryptonMessageBoxExtended`
Standard buttons/icons	Yes	Yes (+ extended sets)
Timeout auto-close	Limited	`useTimeOut`, `timeOut`, `timerResult`
Countdown on a button	No	`countdownButton`, `countdownButtonSeconds`
Footer area	Basic	Text, link, or custom footer types
Message alignment	Default	`messageTextAlignment`, text box alignment
Extra buttons	No	`ExtendedMessageBoxButtons`

Basic usage

using Krypton.Toolkit.Utilities;

DialogResult result = KryptonMessageBoxExtended.Show(
    "Save changes before closing?",
    "Confirm",
    ExtendedMessageBoxButtons.YesNoCancel,
    ExtendedKryptonMessageBoxIcon.Question);

Timeout example

DialogResult result = KryptonMessageBoxExtended.Show(
    messageText: "Session expires soon.",
    caption: "Warning",
    buttons: ExtendedMessageBoxButtons.OK,
    icon: ExtendedKryptonMessageBoxIcon.Warning,
    useTimeOut: true,
    timeOut: 30,
    timerResult: DialogResult.OK);

Countdown button

Use with [KryptonCountdownButton](../../Toolkit Utilities/KryptonCountdownButton.md) semantics on dialog buttons:

KryptonMessageBoxExtended.Show(
    "Delete this item?",
    "Confirm",
    ExtendedMessageBoxButtons.YesNo,
    ExtendedKryptonMessageBoxIcon.Warning,
    countdownButton: ExtendedKryptonMessageBoxCountdownButton.Button1,
    countdownButtonSeconds: 10,
    countdownButtonDialogResult: DialogResult.Yes);

Additional overloads support owner window, custom icons, checkbox text, footer links, and ShowCore parameters for advanced scenarios — see source KryptonMessageBoxExtended.cs.