Basic Dispose Pattern in C#

dispose-pattern.cs

public class DisposableResourceHolder : IDisposable {  

    private SafeHandle resource; // handle to a resource  

    public DisposableResourceHolder(){  
        this.resource = ... // allocates the resource  
    }  

    public void Dispose(){  
        Dispose(true);  
        GC.SuppressFinalize(this);  
    }  

    protected virtual void Dispose(bool disposing){  
        if (disposing){  
            if (resource!= null) resource.Dispose();  
        }  
    }  
}