VistaDB 5

The zero-based column ordinal.
IsDBNull Method (VistaDBDataReader)
Gets a value that indicates whether the column contains nonexistent or missing values.
Public Overrides NotOverridable Function IsDBNull( _
   ByVal ordinal As System.Integer _
) As System.Boolean
Dim instance As VistaDBDataReader
Dim ordinal As System.Integer
Dim value As System.Boolean
value = instance.IsDBNull(ordinal)
public override System.bool IsDBNull( ordinal
public function IsDBNull( 
    ordinal: System.Integer
): System.Boolean; override; 
public override function IsDBNull( 
   ordinal :
) : System.boolean;
public: System.bool IsDBNull( ordinal
) override 
System.bool IsDBNull( ordinal
) override 


The zero-based column ordinal.

Return Value

true if the specified column is equivalent to DBNull; otherwise false.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also