150 lines
3.7 KiB
C#
150 lines
3.7 KiB
C#
//
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// System.Configuration.CommaDelimitedStringCollection.cs
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//
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// Authors:
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// Chris Toshok (toshok@ximian.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
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//
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using System;
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using System.Collections.Specialized;
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namespace System.Configuration {
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/* i really hate all these "new"s... maybe
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* StringCollection marks these methods as virtual in
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* 2.0? */
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public sealed class CommaDelimitedStringCollection : StringCollection {
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bool modified;
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bool readOnly;
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int originalStringHash = 0;
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public bool IsModified {
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get {
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if (modified)
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return true;
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string str = ToString ();
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if (str == null)
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return false;
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return str.GetHashCode () != originalStringHash;
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}
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}
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public new bool IsReadOnly {
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get { return readOnly; }
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}
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public new string this [int index] {
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get { return base [index]; }
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set {
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if (readOnly) throw new ConfigurationErrorsException ("The configuration is read only");
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base [index] = value;
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modified = true;
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}
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}
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public new void Add (string value)
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{
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if (readOnly) throw new ConfigurationErrorsException ("The configuration is read only");
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base.Add (value);
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modified = true;
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}
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public new void AddRange (string[] range)
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{
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if (readOnly) throw new ConfigurationErrorsException ("The configuration is read only");
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base.AddRange (range);
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modified = true;
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}
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public new void Clear ()
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{
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if (readOnly) throw new ConfigurationErrorsException ("The configuration is read only");
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base.Clear ();
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modified = true;
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}
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public CommaDelimitedStringCollection Clone ()
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{
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CommaDelimitedStringCollection col = new CommaDelimitedStringCollection();
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string[] contents = new string[this.Count];
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CopyTo (contents, 0);
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col.AddRange (contents);
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col.originalStringHash = originalStringHash;
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return col;
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}
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public new void Insert (int index, string value)
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{
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if (readOnly) throw new ConfigurationErrorsException ("The configuration is read only");
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base.Insert (index, value);
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modified = true;
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}
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public new void Remove (string value)
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{
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if (readOnly) throw new ConfigurationErrorsException ("The configuration is read only");
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base.Remove (value);
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modified = true;
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}
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public void SetReadOnly ()
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{
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readOnly = true;
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}
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public override string ToString ()
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{
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if (this.Count == 0)
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return null;
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string[] contents = new string[this.Count];
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CopyTo (contents, 0);
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return String.Join (",", contents);
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}
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internal void UpdateStringHash ()
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{
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string str = ToString ();
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if (str == null)
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originalStringHash = 0;
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else
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originalStringHash = str.GetHashCode ();
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}
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}
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}
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