2 // System.ComponentModel.DefaultValueAttribute.cs
5 // Andreas Nahr (ClassDevelopment@A-SoftTech.com)
7 // (C) 2003 Andreas Nahr
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 using System.Globalization;
32 namespace System.ComponentModel
34 [AttributeUsage(AttributeTargets.All)]
35 public sealed class DefaultValueAttribute : Attribute
38 private object DefaultValue;
40 public DefaultValueAttribute (bool value)
45 public DefaultValueAttribute (byte value)
50 public DefaultValueAttribute (char value)
55 public DefaultValueAttribute (double value)
60 public DefaultValueAttribute (short value)
65 public DefaultValueAttribute (int value)
70 public DefaultValueAttribute (long value)
75 public DefaultValueAttribute (object value)
80 public DefaultValueAttribute (float value)
85 public DefaultValueAttribute (string value)
90 public DefaultValueAttribute (Type type, string value)
93 TypeConverter converter = TypeDescriptor.GetConverter (type);
94 DefaultValue = converter.ConvertFromString (null, CultureInfo.InvariantCulture, value);
99 get { return DefaultValue; }
102 public override bool Equals (object obj)
104 if (!(obj is DefaultValueAttribute))
108 return ((DefaultValueAttribute) obj).Value == DefaultValue;
111 public override int GetHashCode()
113 return DefaultValue.GetHashCode();