e79aa3c0ed
Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4
156 lines
5.3 KiB
C#
156 lines
5.3 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="SettingsPropertyCollection.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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namespace System.Configuration {
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using System.Collections;
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using System.Collections.Specialized;
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using System.Runtime.Serialization;
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using System.Configuration.Provider;
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using System.Globalization;
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using System.IO;
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using System.Runtime.Serialization.Formatters.Binary;
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using System.Xml.Serialization;
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using System.ComponentModel;
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public class SettingsPropertyCollection : IEnumerable, ICloneable, ICollection
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{
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private Hashtable _Hashtable = null;
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private bool _ReadOnly = false;
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public SettingsPropertyCollection()
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{
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_Hashtable = new Hashtable(10, StringComparer.CurrentCultureIgnoreCase);
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public void Add(SettingsProperty property)
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{
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if (_ReadOnly)
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throw new NotSupportedException();
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OnAdd(property);
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_Hashtable.Add(property.Name, property);
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try {
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OnAddComplete(property);
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}
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catch {
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_Hashtable.Remove(property.Name);
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throw;
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}
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public void Remove(string name)
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{
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if (_ReadOnly)
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throw new NotSupportedException();
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SettingsProperty toRemove = (SettingsProperty)_Hashtable[name];
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if (toRemove == null)
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return;
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OnRemove(toRemove);
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_Hashtable.Remove(name);
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try {
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OnRemoveComplete(toRemove);
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}
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catch {
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_Hashtable.Add(name, toRemove);
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throw;
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}
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public SettingsProperty this[string name]
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{
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get {
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return _Hashtable[name] as SettingsProperty;
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}
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public IEnumerator GetEnumerator()
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{
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return _Hashtable.Values.GetEnumerator();
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public object Clone()
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{
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return new SettingsPropertyCollection(_Hashtable);
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public void SetReadOnly()
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{
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if (_ReadOnly)
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return;
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_ReadOnly = true;
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public void Clear() {
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if (_ReadOnly)
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throw new NotSupportedException();
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OnClear();
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_Hashtable.Clear();
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OnClearComplete();
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// On* Methods for deriving classes to override. These have
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// been modeled after the CollectionBase class but have
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// been stripped of their "index" parameters as there is no
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// visible index to this collection.
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protected virtual void OnAdd(SettingsProperty property) {}
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protected virtual void OnAddComplete(SettingsProperty property) {}
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protected virtual void OnClear() {}
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protected virtual void OnClearComplete() {}
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protected virtual void OnRemove(SettingsProperty property) {}
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protected virtual void OnRemoveComplete(SettingsProperty property) {}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// ICollection interface
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public int Count { get { return _Hashtable.Count; } }
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public bool IsSynchronized { get { return false; } }
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public object SyncRoot { get { return this; } }
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public void CopyTo(Array array, int index)
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{
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_Hashtable.Values.CopyTo(array, index);
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}
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/////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////
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private SettingsPropertyCollection(Hashtable h)
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{
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_Hashtable = (Hashtable)h.Clone();
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}
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}
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}
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