mcs/class/System/System.Configuration/ConfigurationProperty.cs

   1 //
   2 // System.Configuration.ConfigurationProperty.cs
   3 //
   4 // Authors:
   5 //      Duncan Mak (duncan@ximian.com)
   6 //  Lluis Sanchez Gual (lluis@novell.com)
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining
   9 // a copy of this software and associated documentation files (the
  10 // "Software"), to deal in the Software without restriction, including
  11 // without limitation the rights to use, copy, modify, merge, publish,
  12 // distribute, sublicense, and/or sell copies of the Software, and to
  13 // permit persons to whom the Software is furnished to do so, subject to
  14 // the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be
  17 // included in all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 //
  27 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  28 //
  29
  30 #if NET_2_0 && XML_DEP
  31 #if XML_DEP
  32 using System;
  33 using System.ComponentModel;
  34
  35 namespace System.Configuration
  36 {
  37         public class ConfigurationProperty
  38         {
  39                 string name;
  40                 Type type;
  41                 object default_value;
  42                 TypeConverter converter;
  43                 ConfigurationValidationAttribute validation;
  44                 ConfigurationPropertyFlags flags;
  45
  46                 public ConfigurationProperty (string name, Type type, object default_value)
  47                         : this (name, type, default_value, ConfigurationPropertyFlags.None)
  48                 {
  49                 }
  50
  51                 public ConfigurationProperty (
  52                                         string name, Type type, object default_value,
  53                                         ConfigurationPropertyFlags flags)
  54                         :this (name, type, default_value, TypeDescriptor.GetConverter (type), null, flags)
  55                 {
  56                 }
  57
  58                 public ConfigurationProperty (
  59                                         string name, Type type, object default_value,
  60                                         TypeConverter converter,
  61                                         ConfigurationValidationAttribute validation,
  62                                         ConfigurationPropertyFlags flags)
  63                 {
  64                         this.name = name;
  65                         this.converter = converter;
  66                         this.default_value = default_value;
  67                         this.flags = flags;
  68                         this.type = type;
  69                         this.validation = validation;
  70                 }
  71
  72                 public TypeConverter Converter {
  73                         get { return converter; }
  74                 }
  75
  76                 public object DefaultValue {
  77                         get { return default_value; }
  78                 }
  79
  80                 public bool IsKey {
  81                         get { return (flags & ConfigurationPropertyFlags.IsKey) != 0; }
  82                 }
  83
  84                 public bool IsRequired {
  85                         get { return (flags & ConfigurationPropertyFlags.Required) != 0; }
  86                 }
  87
  88                 public string Name {
  89                         get { return name; }
  90                 }
  91
  92                 public Type Type {
  93                         get { return type; }
  94                 }
  95
  96                 public ConfigurationValidationAttribute ValidationAttribute {
  97                         get { return validation; }
  98                 }
  99
 100                 protected internal virtual object ConvertFromString (string value)
 101                 {
 102                         if (converter != null)
 103                                 return converter.ConvertFromInvariantString (value);
 104                         else
 105                                 throw new NotImplementedException ();
 106                 }
 107
 108                 protected internal virtual string ConvertToString (object value)
 109                 {
 110                         if (converter != null)
 111                                 return converter.ConvertToInvariantString (value);
 112                         else
 113                                 throw new NotImplementedException ();
 114                 }
 115
 116                 internal bool IsElement {
 117                         get {
 118                                 return (typeof(ConfigurationElement).IsAssignableFrom (type));
 119                         }
 120                 }
 121         }
 122 }
 123 #endif
 124 #endif