Code:
/ DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / SiteMapNodeCollection.cs / 1 / SiteMapNodeCollection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* * Copyright (c) 2002 Microsoft Corporation */ namespace System.Web { using System; using System.Collections; using System.Diagnostics; using System.Security.Permissions; using System.Web.UI; using System.Web.UI.WebControls; [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)] public class SiteMapNodeCollection : IHierarchicalEnumerable, IList { internal static SiteMapNodeCollection Empty = new ReadOnlySiteMapNodeCollection(new SiteMapNodeCollection()); private int _initialSize = 10; private ArrayList _innerList; public SiteMapNodeCollection() { } // Create the collection with initial capacity. public SiteMapNodeCollection(int capacity) { _initialSize = capacity; } public SiteMapNodeCollection(SiteMapNode value) { if (value == null) { throw new ArgumentNullException("value"); } _initialSize = 1; List.Add(value); } public SiteMapNodeCollection(SiteMapNode[] value) { if (value == null) { throw new ArgumentNullException("value"); } _initialSize = value.Length; AddRangeInternal(value); } public SiteMapNodeCollection(SiteMapNodeCollection value) { if (value == null) { throw new ArgumentNullException("value"); } _initialSize = value.Count; AddRangeInternal(value); } public virtual int Count { get { return List.Count; } } public virtual bool IsSynchronized { get { return List.IsSynchronized; } } public virtual object SyncRoot { get { return List.SyncRoot; } } private ArrayList List { get { Debug.Assert(!(this is ReadOnlySiteMapNodeCollection), "List should not be called on ReadOnlySiteMapNodeCollection."); if (_innerList == null) { _innerList = new ArrayList(_initialSize); } return _innerList; } } public virtual bool IsFixedSize { get { return false; } } public virtual bool IsReadOnly { get { return false; } } public virtual SiteMapNode this[int index] { get { return (SiteMapNode)List[index]; } set { if (value == null) { throw new ArgumentNullException("value"); } List[index] = value; } } public virtual int Add(SiteMapNode value) { if (value == null) { throw new ArgumentNullException("value"); } return List.Add(value); } public virtual void AddRange(SiteMapNode[] value) { AddRangeInternal(value); } public virtual void AddRange(SiteMapNodeCollection value) { AddRangeInternal(value); } private void AddRangeInternal(IList value) { if (value == null) { throw new ArgumentNullException("value"); } List.AddRange(value); } public virtual void Clear() { List.Clear(); } public virtual bool Contains(SiteMapNode value) { return List.Contains(value); } public virtual void CopyTo(SiteMapNode[] array, int index) { CopyToInternal(array, index); } internal virtual void CopyToInternal(Array array, int index) { List.CopyTo(array, index); } public SiteMapDataSourceView GetDataSourceView(SiteMapDataSource owner, string viewName) { return new SiteMapDataSourceView(owner, viewName, this); } public virtual IEnumerator GetEnumerator() { return List.GetEnumerator(); } public SiteMapHierarchicalDataSourceView GetHierarchicalDataSourceView() { return new SiteMapHierarchicalDataSourceView(this); } public virtual IHierarchyData GetHierarchyData(object enumeratedItem) { return enumeratedItem as IHierarchyData; } public virtual int IndexOf(SiteMapNode value) { return List.IndexOf(value); } public virtual void Insert(int index, SiteMapNode value) { if (value == null) { throw new ArgumentNullException("value"); } List.Insert(index, value); } protected virtual void OnValidate(object value) { if (value == null) { throw new ArgumentNullException("value"); } if (!(value is SiteMapNode)) { throw new ArgumentException( SR.GetString(SR.SiteMapNodeCollection_Invalid_Type, value.GetType().ToString())); } } public static SiteMapNodeCollection ReadOnly(SiteMapNodeCollection collection) { if (collection == null) { throw new ArgumentNullException("collection"); } return new ReadOnlySiteMapNodeCollection(collection); } public virtual void Remove(SiteMapNode value) { if (value == null) { throw new ArgumentNullException("value"); } List.Remove(value); } public virtual void RemoveAt(int index) { List.RemoveAt(index); } #region ICollection implementation int ICollection.Count { get { return Count; } } bool ICollection.IsSynchronized { get { return IsSynchronized; } } object ICollection.SyncRoot { get { return SyncRoot; } } void ICollection.CopyTo(Array array, int index) { CopyToInternal(array, index); } #endregion #region IEnumerable implementation IEnumerator IEnumerable.GetEnumerator() { return GetEnumerator(); } #endregion #region IHierarchicalEnumerable implementation ///IHierarchyData IHierarchicalEnumerable.GetHierarchyData(object enumeratedItem) { return GetHierarchyData(enumeratedItem); } #endregion #region IList implementation /// bool IList.IsFixedSize { get { return IsFixedSize; } } /// bool IList.IsReadOnly { get { return IsReadOnly; } } /// object IList.this[int index] { get { return this[index]; } set { OnValidate(value); this[index] = (SiteMapNode)value; } } int IList.Add(object value) { OnValidate(value); return Add((SiteMapNode)value); } void IList.Clear() { Clear(); } bool IList.Contains(object value) { OnValidate(value); return Contains((SiteMapNode)value); } int IList.IndexOf(object value) { OnValidate(value); return IndexOf((SiteMapNode)value); } void IList.Insert(int index, object value) { OnValidate(value); Insert(index, (SiteMapNode)value); } void IList.Remove(object value) { OnValidate(value); Remove((SiteMapNode)value); } void IList.RemoveAt(int index) { RemoveAt(index); } #endregion private sealed class ReadOnlySiteMapNodeCollection : SiteMapNodeCollection { private SiteMapNodeCollection _internalCollection; internal ReadOnlySiteMapNodeCollection(SiteMapNodeCollection collection) { if (collection == null) { throw new ArgumentNullException("collection"); } _internalCollection = collection; } public override int Count { get { return _internalCollection.Count; } } public override bool IsFixedSize { get { return true; } } public override bool IsReadOnly { get { return true; } } public override bool IsSynchronized { get { return _internalCollection.IsSynchronized; } } public override object SyncRoot { get { return _internalCollection.SyncRoot; } } public override int Add(SiteMapNode value) { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } public override void AddRange(SiteMapNode[] value) { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } public override void AddRange(SiteMapNodeCollection value) { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } public override void Clear() { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } public override bool Contains(SiteMapNode node) { return _internalCollection.Contains(node); } internal override void CopyToInternal(Array array, int index) { _internalCollection.List.CopyTo(array, index); } public override SiteMapNode this[int index] { get { return _internalCollection[index]; } set { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } } public override IEnumerator GetEnumerator() { return _internalCollection.GetEnumerator(); } public override int IndexOf(SiteMapNode value) { return _internalCollection.IndexOf(value); } public override void Insert(int index, SiteMapNode value) { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } public override void Remove(SiteMapNode value) { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } public override void RemoveAt(int index) { throw new NotSupportedException(SR.GetString(SR.Collection_readonly)); } } } }
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