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 #if (XML_DEP)
  34 using System.Xml.Serialization;
  35 #endif
  36
  37 namespace System.Configuration
  38 {
  39
  40         public class SettingsPropertyValue
  41         {
  42                 public SettingsPropertyValue (SettingsProperty property)
  43                 {
  44                         this.property = property;
  45                         needPropertyValue = true;
  46                 }
  47
  48                 public bool Deserialized {
  49                         get {
  50                                 return deserialized;
  51                         }
  52                         set {
  53                                 deserialized = true;
  54                         }
  55                 }
  56
  57                 public bool IsDirty {
  58                         get {
  59                                 return dirty;
  60                         }
  61                         set {
  62                                 dirty = value;
  63                         }
  64                 }
  65
  66                 public string Name {
  67                         get {
  68                                 return property.Name;
  69                         }
  70                 }
  71
  72                 public SettingsProperty Property {
  73                         get {
  74                                 return property;
  75                         }
  76                 }
  77
  78                 public object PropertyValue {
  79                         get {
  80                                 if (needPropertyValue) {
  81                                         needPropertyValue = false;
  82                                         propertyValue = property.DefaultValue;
  83                                         defaulted = true;
  84                                 }
  85
  86 #if notyet
  87                                 /* LAMESPEC: the msdn2 docs say that
  88                                  * for object types this
  89                                  * pessimistically sets Dirty == true.
  90                                  * tests, however, point out that that
  91                                  * is not the case. */
  92                                 if (!property.PropertyType.IsValueType)
  93                                         dirty = true;
  94 #endif
  95
  96                                 return propertyValue;
  97                         }
  98                         set {
  99                                 propertyValue = value;
 100                                 dirty = true;
 101                                 needPropertyValue = false;
 102                                 needSerializedValue = true;
 103                                 defaulted = false;
 104                         }
 105                 }
 106
 107                 [MonoTODO ("string type converter?")]
 108                 public object SerializedValue {
 109                         get {
 110                                 if (needSerializedValue) {
 111                                         needSerializedValue = false;
 112
 113                                         switch (property.SerializeAs)
 114                                         {
 115                                         case SettingsSerializeAs.String:
 116                                                 /* the docs say use a string type converter.. this means what? */
 117                                                 serializedValue = propertyValue.ToString();
 118                                                 break;
 119 #if (XML_DEP)
 120                                         case SettingsSerializeAs.Xml:
 121                                                 XmlSerializer serializer = new XmlSerializer (propertyValue.GetType());
 122                                                 StringWriter w = new StringWriter();
 123
 124                                                 serializer.Serialize (w, propertyValue);
 125                                                 serializedValue = w.ToString();
 126                                                 break;
 127 #endif
 128                                         case SettingsSerializeAs.Binary:
 129                                                 BinaryFormatter bf = new BinaryFormatter ();
 130                                                 MemoryStream ms = new MemoryStream ();
 131                                                 bf.Serialize (ms, propertyValue);
 132                                                 serializedValue = ms.ToArray();
 133                                                 break;
 134                                         default:
 135                                                 serializedValue = null;
 136                                                 break;
 137                                         }
 138
 139                                 }
 140
 141                                 return serializedValue;
 142                         }
 143                         set {
 144                                 serializedValue = value;
 145                         }
 146                 }
 147
 148                 public bool UsingDefaultValue {
 149                         get {
 150                                 return defaulted;
 151                         }
 152                 }
 153
 154                 SettingsProperty property;
 155                 object propertyValue;
 156                 object serializedValue;
 157                 bool needSerializedValue;
 158                 bool needPropertyValue;
 159                 bool dirty;
 160                 bool defaulted;
 161                 bool deserialized;
 162         }
 163
 164 }
 165
 166 #endif