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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

IDataRecord.IsDBNull(Int32)

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.