static IEnumerable <Order> MyCast(MyEnumerable orders)
{
IEnumerable <Order> typedSource = orders as IEnumerable <Order>;
if (typedSource != null)
{
return(typedSource);
}
if (orders == null)
{
throw new Exception("orders == null");
}
return(CastIterator <Order>(orders));
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
var myEnumerable = new MyEnumerable();
myEnumerable.Add("chen");
myEnumerable.Add("qiang");
myEnumerable.Add("dennis");
foreach (var item in myEnumerable)
{
Console.WriteLine($"value => {(item as Order).Name}");
}
var asResult = MyCast(myEnumerable);
foreach (var item in asResult)
{
Console.WriteLine($"value1 => {item.Name}");
}
Console.ReadKey();
}
