NGWS SDK Documentation  

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DBNull Methods

The methods of the DBNull class are listed below. For a complete list of DBNull class members, see the DBNull Members topic.

Public:

Equals Determines whether the specified Object is equal to DBNull.
GetHashCode (inherited from Object) Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures like a hash table.
GetObjectData Implements the ISerializable interface and returns the data needed to serialize the DBNull object.
GetType (inherited from Object) Gets the Type of the Object.
GetTypeCode Gets the TypeCode value for DBNull.
SetObjectData Implements the ISerializable interface.
ToBoolean Throws an InvalidCastException. Called by the ToType method.
ToByte Throws an InvalidCastException. Called by the ToType method.
ToChar Throws an InvalidCastException. Called by the ToType method.
ToDateTime Throws an InvalidCastException. Called by the ToType method.
ToDecimal Throws an InvalidCastException. Called by the ToType method.
ToDouble Throws an InvalidCastException. Called by the ToType method.
ToInt16 Throws an InvalidCastException. Called by the ToType method.
ToInt32 Throws an InvalidCastException. Called by the ToType method.
ToInt64 Throws an InvalidCastException. Called by the ToType method.
ToSByte Throws an InvalidCastException. Called by the ToType method.
ToSingle Throws an InvalidCastException. Called by the ToType method.
ToString Returns an empty string.
ToType Calls the appropriate method, depending on the specified type.
ToUInt16 Throws an InvalidCastException. Called by the ToType method.
ToUInt32 Throws an InvalidCastException. Called by the ToType method.
ToUInt64 Throws an InvalidCastException. Called by the ToType method.

Protected:

Finalize (inherited from Object) Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by the Garbage Collector (GC). This method may be ignored by the runtime; therefore, necessary cleanup operations should be done elsewhere.
MemberwiseClone (inherited from Object) Creates a shallow copy of the current Object.

See Also

DBNull Class | System Namespace