DBNull Methods
Assembly: mscorlib (in mscorlib.dll)
| Name | Description | |
|---|---|---|
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetObjectData(SerializationInfo^, StreamingContext) | Implements the ISerializable interface and returns the data needed to serialize the DBNull object. |
![]() | GetType() | |
![]() | GetTypeCode() | |
![]() | ToString() | Returns an empty string (String::Empty).(Overrides Object::ToString().) |
![]() | ToString(IFormatProvider^) | Returns an empty string using the specified System::IFormatProvider. |
| Name | Description | |
|---|---|---|
![]() ![]() | IConvertible::ToBoolean(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToByte(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToChar(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToDateTime(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToDecimal(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToDouble(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToInt16(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToInt32(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToInt64(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToSByte(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToSingle(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToType(Type^, IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. Converts the current DBNull object to the specified type. |
![]() ![]() | IConvertible::ToUInt16(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToUInt32(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |
![]() ![]() | IConvertible::ToUInt64(IFormatProvider^) | This API supports the product infrastructure and is not intended to be used directly from your code. This conversion is not supported. Attempting to make this conversion throws an InvalidCastException. |


