mcs/class/System.Configuration/System.Configuration/CommaDelimitedStringCollection.cs

   1 //
   2 // System.Configuration.CommaDelimitedStringCollection.cs
   3 //
   4 // Authors:
   5 //      Chris Toshok (toshok@ximian.com)
   6 //
   7 // Permission is hereby granted, free of charge, to any person obtaining
   8 // a copy of this software and associated documentation files (the
   9 // "Software"), to deal in the Software without restriction, including
  10 // without limitation the rights to use, copy, modify, merge, publish,
  11 // distribute, sublicense, and/or sell copies of the Software, and to
  12 // permit persons to whom the Software is furnished to do so, subject to
  13 // the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be
  16 // included in all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  21 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  22 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25 //
  26 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
  27 //
  28
  29 #if NET_2_0
  30 using System;
  31 using System.Collections.Specialized;
  32
  33 namespace System.Configuration {
  34
  35         /* i really hate all these "new"s... maybe
  36          * StringCollection marks these methods as virtual in
  37          * 2.0? */
  38         public sealed class CommaDelimitedStringCollection : StringCollection {
  39
  40                 bool modified;
  41                 bool readOnly;
  42
  43                 public bool IsModified {
  44                         get {
  45                                 return modified;
  46                         }
  47                 }
  48
  49                 public new bool IsReadOnly {
  50                         get {
  51                                 return readOnly;
  52                         }
  53                 }
  54
  55                 public new string this [int index] {
  56                         get {
  57                                 return base [index];
  58                         }
  59                         set {
  60                                 if (readOnly)
  61                                         throw new ConfigurationErrorsException ("The configuration is read only");
  62
  63                                 base [index] = value;
  64                                 modified = true;
  65                         }
  66                 }
  67
  68                 public new void Add (string value)
  69                 {
  70                         if (readOnly)
  71                                 throw new ConfigurationErrorsException ("The configuration is read only");
  72
  73                         base.Add (value);
  74                         modified = true;
  75                 }
  76
  77                 public new void AddRange (string[] range)
  78                 {
  79                         if (readOnly)
  80                                 throw new ConfigurationErrorsException ("The configuration is read only");
  81
  82                         base.AddRange (range);
  83                         modified = true;
  84                 }
  85
  86                 public new void Clear ()
  87                 {
  88                         if (readOnly)
  89                                 throw new ConfigurationErrorsException ("The configuration is read only");
  90
  91                         base.Clear ();
  92                         modified = true;
  93                 }
  94
  95                 public CommaDelimitedStringCollection Clone ()
  96                 {
  97                         CommaDelimitedStringCollection col = new CommaDelimitedStringCollection();
  98                         string[] contents = new string[this.Count];
  99                         CopyTo (contents, 0);
 100
 101                         col.AddRange (contents);
 102
 103                         return col;
 104                 }
 105
 106                 public new void Insert (int index, string value)
 107                 {
 108                         if (readOnly)
 109                                 throw new ConfigurationErrorsException ("The configuration is read only");
 110
 111                         base.Insert (index, value);
 112                         modified = true;
 113                 }
 114
 115                 public new void Remove (string value)
 116                 {
 117                         if (readOnly)
 118                                 throw new ConfigurationErrorsException ("The configuration is read only");
 119
 120                         base.Remove (value);
 121                         modified = true;
 122                 }
 123
 124                 public void SetReadOnly ()
 125                 {
 126                         readOnly = true;
 127                 }
 128
 129                 public new string ToString ()
 130                 {
 131                         if (this.Count == 0)
 132                                 return null;
 133
 134                         string[] contents = new string[this.Count];
 135
 136                         CopyTo (contents, 0);
 137
 138                         return String.Join (",", contents);
 139                 }
 140         }
 141
 142 }
 143
 144 #endif