Question

i need Enumarable value from below class but give error

   public static  Enumerable  LoadDataByName(string name)
        {
            List<StuffDepartman> Stuff = (List<StuffDepartman>)HttpContext.Current.Session["Stuffs"];
            var stuffs = from s in Stuff select s;

             stuffs = from s in Stuff where s.Name = name select s.Name;

            return stuffs.AsEnumerable();
        }

But Give me error: System.Linq.Enumerable’: static types cannot be used as return types

Answer 1

In .NET 3.5, there exists a static Enumerable existing in System.Linq, which contains extension methods for manipulating IEnumerables – this is not what you want to (or clearly can) return. Change it to IEnumerable, which is the non-generic enumerable class (and what I think you intend), and all should work fine.

Even better, use the generic version of IEnumerable, as such:

public static IEnumerable<StuffDepartman> LoadDataByName(string name)
{
    var stuffs = (List<StuffDepartman>)HttpContext.Current.Session["Stuffs"];

    return (from s in stuffs where s.Name == name select s.Name);
}

Also, note that you don’t need the call to AsEnumerable before returning, since List<T> implements IEnumerable<T>, and the former can be implicitly casted to the latter. The = needed to be changed to ==, since you want to use the equality rather than assigment operator here. The other changes are just tidying up.