Sealed Method

An overridden method that further derived classes cannot override again.

What is Sealed Method in C#?

Sealed Method — An overridden method that further derived classes cannot override again.

class Alert
{
    public virtual string Text()
    {
        return "Alert";
    }
}

class EmailAlert : Alert
{
    public sealed override string Text()
    {
        return "Email";
    }
}

Level: Journeyman · More C# terms at this level

Updated September 27, 2026