C#.Net Migration - A2Z Dotnet

Using Type Navigation Operators
interface ICowboy {}
interface IArtist {}
class Tex : ICowboy {}
class LaRoche : IArtist {}
// What happens if DrawAndPaint is passed
// a Tex or LaRoche instance?
//
void DrawAndPaint( object o )
{
// InvalidCastException on failure:
IArtist a = (IArtist)o;
a.Paint();
// False on failure:
bool IsArmed = o is ICowboy;
Using explicit cast, is and as
operations to perform type navigation
}
// Null reference on failure:
ICowboy cb = o as ICowboy;
if( cb != null )
{
cb.Draw();
}
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