Queue.cs

using System;
using System.Collections;

namespace GPRSWeb.SmartDeviceClient.Common
{
        public class Queue : ICollection, IEnumerable, ICloneable
        {       

                private ArrayList myList;

                public Queue() {
                        myList = new ArrayList();
                }

                public virtual void Enqueue(object o) {
                        myList.Add(o);
                }

                public void Clear() {
                        myList.Clear();
                }
                public virtual object Dequeue() {
                        object result = myList[0];
                        myList.RemoveAt(0);
                        return result;
                }

                public object SyncRoot {
                        get { return myList.SyncRoot; }
                }

                public bool IsSynchronized {
                        get { return myList.IsSynchronized; }
                }

                public void CopyTo(Array array, int index) {
                        if (array == null) { throw new ArgumentNullException("array"); } 
                        else if (index < 0) { throw new ArgumentOutOfRangeException("Index should not be less than zero");}
                        else if (array.Rank != 1 || index >= array.Length || myList.Count > (array.Length - index)) { throw new ArgumentException(); }
                        else {
                                for (int i = index, j = 0; i < myList.Count; i++, j++) {
                                        array.SetValue(myList[j], i);
                                }
                        }
                }

                public int Count {
                        get { return myList.Count; }
                }

                public IEnumerator GetEnumerator() {
                        return myList.GetEnumerator();
                }

                public object Clone() {
                        Queue result = new Queue();
                        result.myList = (ArrayList)myList.Clone();
                        return result;
                }

        }
}

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