e79aa3c0ed
Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4
164 lines
5.2 KiB
C#
164 lines
5.2 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="SettingsPropertyValueCollection.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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using System.Security.Permissions;
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using System.Reflection;
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//////////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////////
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public class SettingsPropertyValueCollection : IEnumerable, ICloneable, ICollection
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{
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private Hashtable _Indices = null;
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private ArrayList _Values = null;
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private bool _ReadOnly = false;
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public SettingsPropertyValueCollection()
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{
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_Indices = new Hashtable(10, StringComparer.CurrentCultureIgnoreCase);
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_Values = new ArrayList();
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public void Add(SettingsPropertyValue property)
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{
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if (_ReadOnly)
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throw new NotSupportedException();
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int pos = _Values.Add(property);
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try
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{
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_Indices.Add(property.Name, pos);
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}
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catch (Exception)
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{
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_Values.RemoveAt(pos);
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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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object pos = _Indices[name];
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if (pos == null || !(pos is int))
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return;
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int ipos = (int)pos;
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if (ipos >= _Values.Count)
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return;
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_Values.RemoveAt(ipos);
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_Indices.Remove(name);
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ArrayList al = new ArrayList();
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foreach (DictionaryEntry de in _Indices)
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if ((int)de.Value > ipos)
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al.Add(de.Key);
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foreach (string key in al)
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_Indices[key] = ((int)_Indices[key]) - 1;
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public SettingsPropertyValue this[string name]
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{
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get
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{
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object pos = _Indices[name];
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if (pos == null || !(pos is int))
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return null;
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int ipos = (int)pos;
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if (ipos >= _Values.Count)
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return null;
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return (SettingsPropertyValue)_Values[ipos];
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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 _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 SettingsPropertyValueCollection(_Indices, _Values);
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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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_Values = ArrayList.ReadOnly(_Values);
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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public void Clear()
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{
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_Values.Clear();
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_Indices.Clear();
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}
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// ICollection interface
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public int Count { get { return _Values.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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_Values.CopyTo(array, index);
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}
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/////////////////////////////////////////////////////////////////////////////
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/////////////////////////////////////////////////////////////////////////////
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private SettingsPropertyValueCollection(Hashtable indices, ArrayList values)
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{
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_Indices = (Hashtable)indices.Clone();
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_Values = (ArrayList)values.Clone();
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}
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}
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}
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