mcs/class/System/System.Configuration/SettingsPropertyValue.cs

   1 //
   2 // System.Web.UI.WebControls.SettingsPropertyValue.cs
   3 //
   4 // Authors:
   5 //      Chris Toshok (toshok@ximian.com)
   6 //
   7 // (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 #if NET_2_0
  30 using System;
  31 using System.IO;
  32 using System.Runtime.Serialization.Formatters.Binary;
  33 using System.Xml.Serialization;
  34
  35 namespace System.Configuration
  36 {
  37
  38         public class SettingsPropertyValue
  39         {
  40                 public SettingsPropertyValue (SettingsProperty property)
  41                 {
  42                         this.property = property;
  43                         needPropertyValue = true;
  44                 }
  45
  46                 public bool Deserialized {
  47                         get {
  48                                 return deserialized;
  49                         }
  50                         set {
  51                                 deserialized = true;
  52                         }
  53                 }
  54
  55                 public bool IsDirty {
  56                         get {
  57                                 return dirty;
  58                         }
  59                         set {
  60                                 dirty = value;
  61                         }
  62                 }
  63
  64                 public string Name {
  65                         get {
  66                                 return property.Name;
  67                         }
  68                 }
  69
  70                 public SettingsProperty Property {
  71                         get {
  72                                 return property;
  73                         }
  74                 }
  75
  76                 public object PropertyValue {
  77                         get {
  78                                 if (needPropertyValue) {
  79                                         needPropertyValue = false;
  80                                         propertyValue = property.DefaultValue;
  81                                         defaulted = true;
  82                                 }
  83
  84 #if notyet
  85                                 /* LAMESPEC: the msdn2 docs say that
  86                                  * for object types this
  87                                  * pessimistically sets Dirty == true.
  88                                  * tests, however, point out that that
  89                                  * is not the case. */
  90                                 if (!property.PropertyType.IsValueType)
  91                                         dirty = true;
  92 #endif
  93
  94                                 return propertyValue;
  95                         }
  96                         set {
  97                                 propertyValue = value;
  98                                 dirty = true;
  99                                 needPropertyValue = false;
 100                                 needSerializedValue = true;
 101                                 defaulted = false;
 102                         }
 103                 }
 104
 105                 [MonoTODO ("string type converter?")]
 106                 public object SerializedValue {
 107                         get {
 108                                 if (needSerializedValue) {
 109                                         needSerializedValue = false;
 110
 111                                         switch (property.SerializeAs)
 112                                         {
 113                                         case SettingsSerializeAs.String:
 114                                                 /* the docs say use a string type converter.. this means what? */
 115                                                 serializedValue = propertyValue.ToString();
 116                                                 break;
 117                                         case SettingsSerializeAs.Xml:
 118                                                 XmlSerializer serializer = new XmlSerializer (propertyValue.GetType());
 119                                                 StringWriter w = new StringWriter();
 120
 121                                                 serializer.Serialize (w, propertyValue);
 122                                                 serializedValue = w.ToString();
 123                                                 break;
 124                                         case SettingsSerializeAs.Binary:
 125                                                 BinaryFormatter bf = new BinaryFormatter ();
 126                                                 MemoryStream ms = new MemoryStream ();
 127                                                 bf.Serialize (ms, propertyValue);
 128                                                 serializedValue = ms.ToArray();
 129                                                 break;
 130                                         default:
 131                                                 serializedValue = null;
 132                                                 break;
 133                                         }
 134
 135                                 }
 136
 137                                 return serializedValue;
 138                         }
 139                         set {
 140                                 serializedValue = value;
 141                         }
 142                 }
 143
 144                 public bool UsingDefaultValue {
 145                         get {
 146                                 return defaulted;
 147                         }
 148                 }
 149
 150                 SettingsProperty property;
 151                 object propertyValue;
 152                 object serializedValue;
 153                 bool needSerializedValue;
 154                 bool needPropertyValue;
 155                 bool dirty;
 156                 bool defaulted;
 157                 bool deserialized;
 158         }
 159
 160 }
 161
 162 #endif