IsNull 메서드
Gets a Boolean value that specifies whether value of the data at the specified column position is null.
네임스페이스: Microsoft.SqlServer.Management.Trace
어셈블리: Microsoft.SqlServer.ConnectionInfoExtended(Microsoft.SqlServer.ConnectionInfoExtended.dll)
구문
‘선언
Public Function IsNull ( _
ordinal As Integer _
) As Boolean
‘사용 방법
Dim instance As TraceReader
Dim ordinal As Integer
Dim returnValue As Boolean
returnValue = instance.IsNull(ordinal)
public bool IsNull(
int ordinal
)
public:
bool IsNull(
int ordinal
)
member IsNull :
ordinal:int -> bool
public function IsNull(
ordinal : int
) : boolean
매개 변수
- ordinal
유형: System. . :: . .Int32
An Int32 value that specifies the column position of the data.
반환 값
유형: System. . :: . .Boolean
A Boolean value that specifies whether value of the data at the specified column is null.
If True, the value is null.
If False, the value is not null.