Type.IsSealed Property

Property Value

Type: System.Boolean
true if the Type is declared sealed; otherwise, false.

Public NotInheritable Class Example

    Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

        Dim t As Type = GetType(Example)
        outputBlock.Text &= _
            String.Format("Is class {0} NotInheritable? {1}." & vbLf, _
            t.Name, t.IsSealed) 

    End Sub 
End Class 

' This example produces the following output:
'
'Is class Example NotInheritable? True.

using System;

public sealed class Example
{
    public static void Demo(System.Windows.Controls.TextBlock outputBlock)
    {
        Type t = typeof(Example);
        outputBlock.Text += 
            String.Format("Is class {0} sealed? {1}.\n", 
            t.Name, t.IsSealed);
    }
}

/* This example produces the following output:

Is class Example sealed? True.
 */