AdomdDataReader.IsDBNull 메서드
Returns a Boolean that contains a value indicating whether the column is set to null.
네임스페이스: Microsoft.AnalysisServices.AdomdClient
어셈블리: Microsoft.AnalysisServices.AdomdClient(Microsoft.AnalysisServices.AdomdClient.dll)
구문
‘선언
Public Function IsDBNull ( _
ordinal As Integer _
) As Boolean
‘사용 방법
Dim instance As AdomdDataReader
Dim ordinal As Integer
Dim returnValue As Boolean
returnValue = instance.IsDBNull(ordinal)
public bool IsDBNull(
int ordinal
)
public:
virtual bool IsDBNull(
int ordinal
) sealed
abstract IsDBNull :
ordinal:int -> bool
override IsDBNull :
ordinal:int -> bool
public final function IsDBNull(
ordinal : int
) : boolean
매개 변수
- ordinal
유형: System.Int32
The zero-based ordinal position of the column to find.
반환 값
유형: System.Boolean
A Boolean containing true if the column is set to nullnull 참조(Visual Basic에서는 Nothing); false otherwise.
구현
주의
Call this method to check for nullnull 참조(Visual Basic에서는 Nothing) column values before calling the typed methods used to retrieve column values (for example, GetByte, GetChar, and so on), to avoid raising an error.