Microsoft.ManagementConsole.BaseCollection.AddRange C# (CSharp) Method

        protected void AddRange(object[] items)
        {
            if (items == null)
            {
                throw new ArgumentNullException("items");
            }
            if (items.Length != 0)
            {
                foreach (object obj2 in items)
                {
                    this.OnValidate(obj2, true);
                }
                int count = base.InnerList.Count;
                base.InnerList.AddRange(items);
                try
                {
                    this.OnItemsAdded(count, items);
                }
                catch
                {
                    base.InnerList.RemoveRange(count, items.Length);
                    throw;
                }
            }
        }