_Core/Utilities/EnumerableExtensions.cs

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/*
 * Author: Kishore Reddy
 * Url: http://commonlibrarynet.codeplex.com/
 * Title: CommonLibrary.NET
 * Copyright: � 2009 Kishore Reddy
 * License: LGPL License
 * LicenseUrl: http://commonlibrarynet.codeplex.com/license
 * Description: A C# based .NET 3.5 Open-Source collection of reusable components.
 * Usage: Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ComLib
{

    /// <summary>
    /// Extension methods for collections.
    /// </summary>
    public static class EnumerableExtensions
    {
        /// <summary>
        /// Execute action on each item in enumeration.
        /// </summary>
        /// <typeparam name="T">Type of item to use with the method.</typeparam>
        /// <param name="items">List of items.</param>
        /// <param name="action">Action to call for each item.</param>
        public static void ForEach<T>(this IEnumerable<T> items, Action<T> action)
        {
            foreach (var item in items)
                action(item);
        }


        /// <summary>
        /// Joins the specified items.
        /// </summary>
        /// <typeparam name="T">Type of item to use with the method.</typeparam>
        /// <param name="items">The items.</param>
        /// <param name="delimeter">The delimeter.</param>
        /// <returns>String with joined items.</returns>
        public static string Join<T>(this IList<T> items, string delimeter)
        {
            if (items == null || items.Count == 0)
                return string.Empty;

            if (items.Count == 1)
                return items[0].ToString();

            StringBuilder buffer = new StringBuilder();
            buffer.Append(items[0].ToString());

            for (int ndx = 1; ndx < items.Count; ndx++)
            {