protected override object RunBlock() { object obj = base.contextBlock.Run(); IList list = obj as IList; if (list != null) { BloxBlock obj2 = base.paramBlocks[0]; object value = (obj2 != null) ? obj2.Run() : null; return(BloxUtil.ListIndexOf(list, value)); } base.LogError("The context must be a List but was [" + ((obj != null) ? obj.GetType() : null) + "]", null); return(-1); }