Why does a Linq Cast operation fail when I have an implicit cast defined?

Question

I\'ve created two classes, with one of them having an implicit cast between them:

public class Class1
{
    public int Test1;
}

public class Class2
{
    pu         


        

Answer 1

You can also use this to do casting with conversions if needed:

public static IEnumerable CastAll(this IEnumerable items)
{
 var p = Expression.Parameter(typeof(TItem), "i");
 var c = Expression.Convert(p, typeof(TDest));
 var ex = Expression.Lambda>(c, p).Compile();

 foreach (var item in items)
 {
    yield return ex(item);
 }
}

From http://adventuresdotnet.blogspot.com/2010/06/better-more-type-safe-alternative-to.html