Type.IsInterface Property

Property Value

Type: System.Boolean
true if the Type is an interface; otherwise, false.

' Declare an interface.
Interface myIFace
End Interface 'myIFace
Class Example
   Public Shared Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
      Try
         ' Get the IsInterface attribute for myIFace.
         Dim myBool1 As Boolean = GetType(myIFace).IsInterface
         ' Display the IsInterface attribute for myIFace.
         outputBlock.Text += String.Format("Is the specified type an interface? {0}.", myBool1.ToString) & vbCrLf
         ' Get the IsInterface attribute for Example.
         Dim myBool2 As Boolean = GetType(Example).IsInterface
         ' Display the IsInterface attribute for Example.
         outputBlock.Text += String.Format("Is the specified type an interface? {0}.", myBool2.ToString) & vbCrLf
      Catch e As Exception
         outputBlock.Text += String.Format(ControlChars.Cr + "An exception occurred: {0}", e.Message.ToString) & vbCrLf
      End Try
   End Sub 'Main
End Class 'MyIsInterface

using System;
// Declare an interface.
interface myIFace
{
}
class Example
{
   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      try
      {
         // Get the IsInterface attribute for myIFace.
         bool myBool1 = typeof(myIFace).IsInterface;
         //Display the IsInterface attribute for myIFace.
         outputBlock.Text += String.Format("Is the specified type an interface? {0}.", myBool1) + "\n";
         // Get the attribute IsInterface for Example.
         bool myBool2 = typeof(Example).IsInterface;
         //Display the IsInterface attribute for Example.
         outputBlock.Text += String.Format("Is the specified type an interface? {0}.", myBool2) + "\n";
      }
      catch (Exception e)
      {
         outputBlock.Text += String.Format("\nAn exception occurred: {0}.", e.Message) + "\n";
      }
   }
}