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//
// System.DBNull.cs
//
// Author: Duncan Mak (duncan@ximian.com)
//
// (C) 2002 Ximian, Inc. http://www.ximian.com
//
using System.Runtime.Serialization;
namespace System
{
[Serializable]
public sealed class DBNull : ISerializable, IConvertible
{
// Fields
public static readonly DBNull Value = new DBNull ();
// Private constructor
private DBNull () {}
// Methods
[MonoTODO]
public void GetObjectData (SerializationInfo info, StreamingContext context)
{
}
public TypeCode GetTypeCode ()
{
return TypeCode.DBNull;
}
[MonoTODO]
bool IConvertible.ToBoolean (IFormatProvider provider)
{
return false;
}
[MonoTODO]
byte IConvertible.ToByte (IFormatProvider provider)
{
return Byte.MinValue;
}
[MonoTODO]
char IConvertible.ToChar (IFormatProvider provider)
{
return Char.MinValue;
}
[MonoTODO]
DateTime IConvertible.ToDateTime (IFormatProvider provider)
{
return DateTime.MinValue;
}
[MonoTODO]
decimal IConvertible.ToDecimal (IFormatProvider provider)
{
return Decimal.MinValue;
}
[MonoTODO]
double IConvertible.ToDouble (IFormatProvider provider)
{
return Double.MinValue;
}
[MonoTODO]
short IConvertible.ToInt16 (IFormatProvider provider)
{
return Int16.MinValue;
}
[MonoTODO]
int IConvertible.ToInt32 (IFormatProvider provider)
{
return Int32.MinValue;
}
[MonoTODO]
long IConvertible.ToInt64 (IFormatProvider provider)
{
return Int64.MinValue;
}
[MonoTODO]
sbyte IConvertible.ToSByte (IFormatProvider provider)
{
return SByte.MinValue;
}
[MonoTODO]
float IConvertible.ToSingle (IFormatProvider provider)
{
return Single.MinValue;
}
[MonoTODO]
object IConvertible.ToType (Type type, IFormatProvider provider)
{
return null;
}
[MonoTODO]
ushort IConvertible.ToUInt16 (IFormatProvider provider)
{
return UInt16.MinValue;
}
[MonoTODO]
uint IConvertible.ToUInt32 (IFormatProvider provider)
{
return UInt32.MinValue;
}
[MonoTODO]
ulong IConvertible.ToUInt64 (IFormatProvider provider)
{
return UInt64.MinValue;
}
public override string ToString ()
{
return String.Empty;
}
public string ToString (IFormatProvider provider)
{
return String.Empty;
}
}
}
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