SynchronizedReadOnlyCollection.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / SynchronizedReadOnlyCollection.cs / 1 / SynchronizedReadOnlyCollection.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------
namespace System.Collections.Generic
{ 
    using System;
    using System.Collections; 
    using System.Diagnostics; 
    using System.ServiceModel;
 
    [System.Runtime.InteropServices.ComVisible(false)]
    public class SynchronizedReadOnlyCollection : IList, IList
    {
        IList items; 
        object sync;
 
        public SynchronizedReadOnlyCollection() 
        {
            this.items = new List(); 
            this.sync = new Object();
        }

        public SynchronizedReadOnlyCollection(object syncRoot) 
        {
            if (syncRoot == null) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("syncRoot")); 

            this.items = new List(); 
            this.sync = syncRoot;
        }

        public SynchronizedReadOnlyCollection(object syncRoot, IEnumerable list) 
        {
            if (syncRoot == null) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("syncRoot")); 
            if (list == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("list")); 

            this.items = new List(list);
            this.sync = syncRoot;
        } 

        public SynchronizedReadOnlyCollection(object syncRoot, params T[] list) 
        { 
            if (syncRoot == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("syncRoot")); 
            if (list == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("list"));

            this.items = new List(list.Length); 
            for (int i=0; i list, bool makeCopy)
        {
            if (syncRoot == null) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("syncRoot"));
            if (list == null) 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("list")); 

            if (makeCopy) 
                this.items = new List(list);
            else
                this.items = list;
 
            this.sync = syncRoot;
        } 
 
        public int Count
        { 
            get { lock (this.sync) { return this.items.Count; } }
        }

        protected IList Items 
        {
            get 
            { 
                return this.items;
            } 
        }

        public T this[int index]
        { 
            get { lock (this.sync) { return this.items[index]; } }
        } 
 
        public bool Contains(T value)
        { 
            lock (this.sync)
            {
                return this.items.Contains(value);
            } 
        }
 
        public void CopyTo(T[] array, int index) 
        {
            lock (this.sync) 
            {
                this.items.CopyTo(array, index);
            }
        } 

        public IEnumerator GetEnumerator() 
        { 
            lock (this.sync)
            { 
                return this.items.GetEnumerator();
            }
        }
 
        public int IndexOf(T value)
        { 
            lock (this.sync) 
            {
                return this.items.IndexOf(value); 
            }
        }

        void ThrowReadOnly() 
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.GetString(SR.SFxCollectionReadOnly))); 
        } 

        bool ICollection.IsReadOnly 
        {
            get { return true; }
        }
 
        T IList.this[int index]
        { 
            get 
            {
                return this[index]; 
            }
            set
            {
                this.ThrowReadOnly(); 
            }
        } 
 
        void ICollection.Add(T value)
        { 
            this.ThrowReadOnly();
        }

        void ICollection.Clear() 
        {
            this.ThrowReadOnly(); 
        } 

        bool ICollection.Remove(T value) 
        {
            this.ThrowReadOnly();
            return false;
        } 

        void IList.Insert(int index, T value) 
        { 
            this.ThrowReadOnly();
        } 

        void IList.RemoveAt(int index)
        {
            this.ThrowReadOnly(); 
        }
 
        bool ICollection.IsSynchronized 
        {
            get { return true; } 
        }

        object ICollection.SyncRoot
        { 
            get { return this.sync; }
        } 
 
        void ICollection.CopyTo(Array array, int index)
        { 
            ICollection asCollection = this.items as ICollection;
            if (asCollection == null)
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new NotSupportedException(SR.GetString(SR.SFxCopyToRequiresICollection)));
 
            lock (this.sync)
            { 
                asCollection.CopyTo(array, index); 
            }
        } 

        IEnumerator IEnumerable.GetEnumerator()
        {
            lock (this.sync) 
            {
                IEnumerable asEnumerable = this.items as IEnumerable; 
                if (asEnumerable != null) 
                    return asEnumerable.GetEnumerator();
                else 
                    return new EnumeratorAdapter(this.items);
            }
        }
 
        bool IList.IsFixedSize
        { 
            get { return true; } 
        }
 
        bool IList.IsReadOnly
        {
            get { return true; }
        } 

        object IList.this[int index] 
        { 
            get
            { 
                return this[index];
            }
            set
            { 
                this.ThrowReadOnly();
            } 
        } 

        int IList.Add(object value) 
        {
            this.ThrowReadOnly();
            return 0;
        } 

        void IList.Clear() 
        { 
            this.ThrowReadOnly();
        } 

        bool IList.Contains(object value)
        {
            VerifyValueType(value); 
            return this.Contains((T)value);
        } 
 
        int IList.IndexOf(object value)
        { 
            VerifyValueType(value);
            return this.IndexOf((T)value);
        }
 
        void IList.Insert(int index, object value)
        { 
            this.ThrowReadOnly(); 
        }
 
        void IList.Remove(object value)
        {
            this.ThrowReadOnly();
        } 

        void IList.RemoveAt(int index) 
        { 
            this.ThrowReadOnly();
        } 

        static void VerifyValueType(object value)
        {
            if ((value is T) || (value == null && !typeof(T).IsValueType)) 
                return;
 
            Type type = (value == null) ? typeof(Object) : value.GetType(); 
            string message = SR.GetString(SR.SFxCollectionWrongType2, type.ToString(), typeof(T).ToString());
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(message)); 
        }

        sealed class EnumeratorAdapter: IEnumerator, IDisposable
        { 
            IList list;
            IEnumerator e; 
 
            public EnumeratorAdapter(IList list) {
                this.list = list; 
                this.e = list.GetEnumerator();
            }

            public object Current { 
                get { return e.Current; }
            } 
 
            public bool MoveNext() {
                return e.MoveNext(); 
            }

            public void Dispose() {
                e.Dispose(); 
            }
 
            public void Reset() { 
                e = list.GetEnumerator();
            } 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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SynchronizedReadOnlyCollection.cs source code in C# .NET

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