AdomdDataReader.IsDBNull Method
Returns a Boolean that contains a value indicating whether the column is set to null.
Namespace: Microsoft.AnalysisServices.AdomdClient
Assembly: Microsoft.AnalysisServices.AdomdClient (in Microsoft.AnalysisServices.AdomdClient.dll)
Syntax
'Declaration
Public Function IsDBNull ( _
ordinal As Integer _
) As Boolean
'Usage
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
Parameters
- ordinal
Type: System.Int32
The zero-based ordinal position of the column to find.
Return Value
Type: System.Boolean
A Boolean containing true if the column is set to nulla null reference (Nothing in Visual Basic); false otherwise.
Implements
Remarks
Call this method to check for nulla null reference (Nothing in Visual Basic) column values before calling the typed methods used to retrieve column values (for example, GetByte, GetChar, and so on), to avoid raising an error.