/V4/PrismLibrary/Desktop/Prism/CollectionExtensions.cs

//===================================================================================

// Microsoft patterns & practices

// Composite Application Guidance for Windows Presentation Foundation and Silverlight

//===================================================================================

// Copyright (c) Microsoft Corporation.  All rights reserved.

// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY

// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT

// LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

// FITNESS FOR A PARTICULAR PURPOSE.

//===================================================================================

// The example companies, organizations, products, domain names,

// e-mail addresses, logos, people, places, and events depicted

// herein are fictitious.  No association with any real company,

// organization, product, domain name, email address, logo, person,

// places, or events is intended or should be inferred.

//===================================================================================

using System.Collections.Generic;

using System.Collections.ObjectModel;



namespace Microsoft.Practices.Prism

{

    /// <summary>

    /// Class that provides extension methods to Collection

    /// </summary>

    public static class CollectionExtensions

    {

        /// <summary>

        /// Add a range of items to a collection.

        /// </summary>

        /// <typeparam name="T">Type of objects within the collection.</typeparam>

        /// <param name="collection">The collection to add items to.</param>

        /// <param name="items">The items to add to the collection.</param>

        /// <returns>The collection.</returns>

        /// <exception cref="System.ArgumentNullException">An <see cref="System.ArgumentNullException"/> is thrown if <paramref name="collection"/> or <paramref name="items"/> is <see langword="null"/>.</exception>

        public static Collection<T> AddRange<T>(this Collection<T> collection, IEnumerable<T> items)

        {

            if (collection == null) throw new System.ArgumentNullException("collection");

            if (items == null) throw new System.ArgumentNullException("items");



            foreach (var each in items)

            {

                collection.Add(each);

            }



            return collection;

        }

    }

}