/* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794 */ // // ISample.cs - Demonstrates a safe method of determining whether a class // implements a particular interface // Compile this program with the following command line: // C:>csc isample.cs // namespace nsInterfaceSample { using System; public class InterfaceSample { static public void Main () { // Declare an instance of the clsSample class clsSample samp = new clsSample(); // Test whether clsSample supports the IDisposable interface if (samp is IDisposable) { // If true, it is safe to call the Dispose() method IDisposable obj = (IDisposable) samp; obj.Dispose (); } } } class clsSample : IDisposable { // Implement the IDispose() function public void Dispose () { Console.WriteLine ("Called Dispose() in clsSample"); } } }