SynchronizedCollection.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / SynchronizedCollection.cs / 1 / SynchronizedCollection.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 SynchronizedCollection : IList, IList
    {
        List items; 
        object sync;
 
        public SynchronizedCollection() 
        {
            this.items = new List(); 
            this.sync = new Object();
        }

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

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

        public SynchronizedCollection(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 SynchronizedCollection(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 Items 
        {
            get { return this.items; } 
        }

        public object SyncRoot
        { 
            get { return this.sync; }
        } 
 
        public T this[int index]
        { 
            get
            {
                lock (this.sync)
                { 
                    return this.items[index];
                } 
            } 
            set {
                lock (this.sync) 
                {
                    if (index < 0 || index >= this.items.Count)
                        throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("index", index,
                                                    SR.GetString(SR.ValueMustBeInRange, 0, this.items.Count - 1))); 

                    this.SetItem(index, value); 
                } 
            }
        } 

        public void Add(T item)
        {
            lock (this.sync) 
            {
                int index = this.items.Count; 
                this.InsertItem(index, item); 
            }
        } 

        public void Clear()
        {
            lock (this.sync) 
            {
                this.ClearItems(); 
            } 
        }
 
        public void CopyTo(T[] array, int index)
        {
            lock (this.sync)
            { 
                this.items.CopyTo(array, index);
            } 
        } 

        public bool Contains(T item) 
        {
            lock (this.sync)
            {
                return this.items.Contains(item); 
            }
        } 
 
        public IEnumerator GetEnumerator()
        { 
            lock (this.sync)
            {
                return this.items.GetEnumerator();
            } 
        }
 
        public int IndexOf(T item) 
        {
            lock (this.sync) 
            {
                return this.InternalIndexOf(item);
            }
        } 

        public void Insert(int index, T item) 
        { 
            lock (this.sync)
            { 
                if (index < 0 || index > this.items.Count)
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("index", index,
                                                    SR.GetString(SR.ValueMustBeInRange, 0, this.items.Count)));
 
                this.InsertItem(index, item);
            } 
        } 

        int InternalIndexOf(T item) 
        {
            int count = items.Count;

            for (int i = 0; i < count; i++) 
            {
                if (object.Equals(items[i], item)) 
                { 
                    return i;
                } 
            }
            return -1;
        }
 
        public bool Remove(T item)
        { 
            lock (this.sync) 
            {
                int index = this.InternalIndexOf(item); 
                if (index < 0)
                    return false;

                this.RemoveItem(index); 
                return true;
            } 
        } 

        public void RemoveAt(int index) 
        {
            lock (this.sync)
            {
                if (index < 0 || index >= this.items.Count) 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentOutOfRangeException("index", index,
                                                    SR.GetString(SR.ValueMustBeInRange, 0, this.items.Count - 1))); 
 

                this.RemoveItem(index); 
            }
        }

        protected virtual void ClearItems() 
        {
            this.items.Clear(); 
        } 

        protected virtual void InsertItem(int index, T item) 
        {
            this.items.Insert(index, item);
        }
 
        protected virtual void RemoveItem(int index)
        { 
            this.items.RemoveAt(index); 
        }
 
        protected virtual void SetItem(int index, T item)
        {
            this.items[index] = item;
        } 

        bool ICollection.IsReadOnly 
        { 
            get { return false; }
        } 

        IEnumerator IEnumerable.GetEnumerator()
        {
            return ((IList)this.items).GetEnumerator(); 
        }
 
        bool ICollection.IsSynchronized 
        {
            get { return true; } 
        }

        object ICollection.SyncRoot
        { 
            get { return this.sync; }
        } 
 
        void ICollection.CopyTo(Array array, int index)
        { 
            lock (this.sync)
            {
                ((IList)this.items).CopyTo(array, index);
            } 
        }
 
        object IList.this[int index] 
        {
            get 
            {
                return this[index];
            }
            set 
            {
                VerifyValueType(value); 
                this[index] = (T)value; 
            }
        } 

        bool IList.IsReadOnly
        {
            get { return false;} 
        }
 
        bool IList.IsFixedSize 
        {
            get { return false;} 
        }

        int IList.Add(object value)
        { 
            VerifyValueType(value);
 
            lock (this.sync) 
            {
                this.Add((T)value); 
                return this.Count - 1;
            }
        }
 
        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)
        { 
            VerifyValueType(value);
            this.Insert(index, (T)value);
        }
 
        void IList.Remove(object value)
        { 
            VerifyValueType(value); 
            this.Remove((T)value);
        } 

        static void VerifyValueType(object value)
        {
            if (value == null) 
            {
                if (typeof(T).IsValueType) 
                { 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.SynchronizedCollectionWrongTypeNull)));
                } 
            }
            else if (!(value is T))
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentException(SR.GetString(SR.SynchronizedCollectionWrongType1, value.GetType().FullName))); 
            }
        } 
    } 
}

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

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