using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Microsoft.Research.DynamicDataDisplay

{

	public static class IListExtensions

	{

		public static void AddMany<T>(this IList<T> collection, IEnumerable<T> addingItems)

		{

			foreach (var item in addingItems)

			{

				collection.Add(item);

			}

		}



		public static void AddMany<T>(this IList<T> collection, params T[] children)

		{

			foreach (var child in children)

			{

				collection.Add(child);

			}

		}



		public static void RemoveAllOfType<T>(this IList<T> collection, Type type)

		{

			var children = collection.Where(el => type.IsAssignableFrom(el.GetType())).ToArray();

			foreach (var child in children)

			{

				collection.Remove((T)child);

			}

		}



		public static void RemoveAll<T, TDelete>(this IList<T> collection)

		{

			var children = collection.OfType<TDelete>().ToArray();

			foreach (var child in children)

			{

				collection.Remove((T)(object)child);

			}

		}



		public static void RemoveAll<T>(this IList<T> collection, params T[] elements)

		{

			foreach (var item in elements)

			{

				collection.Remove(item);

			}

		}

	}

}