#region Author //// Rob Eisenberg, Blue Spire Consulting, Inc #endregion using System; using System.Collections.Generic; namespace Sample.Silverlight.WCF.Infrastructure.Actions { public class Yield { readonly IEnumerator<IAction> iterator; Yield(IEnumerable<IAction> routine) { iterator = routine.GetEnumerator(); } void Iterate() { ActionCompleted(null, EventArgs.Empty); } void ActionCompleted(object sender, EventArgs args) { var previous = sender as IAction; if (previous != null) previous.Completed -= ActionCompleted; if (!iterator.MoveNext()) return; IAction next = iterator.Current; next.Completed += ActionCompleted; next.Execute(); } public static void Call(IEnumerable<IAction> routine) { new Yield(routine).Iterate(); } } }
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