Members

System.DBNull Members

The members of System.DBNull are listed below.

See Also: Inherited members from System.Object

Public Fields

static readonly

Value

DBNull.

Represents the sole instance of the DBNull class.

Public Methods

	GetObjectData(System.Runtime.Serialization.SerializationInfo, System.Runtime.Serialization.StreamingContext) Implements the System.Runtime.Serialization.ISerializable interface and returns the data needed to serialize the DBNull object.
	GetTypeCode() : TypeCode Gets the TypeCode value for DBNull.
override	ToString() : string Returns an empty string (string.Empty).
	ToString(IFormatProvider) : string Returns an empty string using the specified IFormatProvider.

Explicitly Implemented Interface Members

	IConvertible.ToBoolean	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToByte	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToChar	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToDateTime	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToDecimal	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToDouble	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToInt16	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToInt32	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToInt64	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToSByte	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToSingle	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToType	Converts the current DBNull object to the specified type.
	IConvertible.ToUInt16	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToUInt32	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.
	IConvertible.ToUInt64	This conversion is not supported. Attempting to make this conversion throws an InvalidCastException.