OracleDataReader.IsDBNull(Int32) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets a value indicating whether the column contains non-existent or missing values.
public:
virtual bool IsDBNull(int i);
public:
override bool IsDBNull(int i);
public bool IsDBNull (int i);
public override bool IsDBNull (int i);
abstract member IsDBNull : int -> bool
override this.IsDBNull : int -> bool
override this.IsDBNull : int -> bool
Public Function IsDBNull (i As Integer) As Boolean
Public Overrides Function IsDBNull (i As Integer) As Boolean
Parameters
- i
- Int32
The zero-based column ordinal.
Returns
true
if the specified column value is equivalent to DBNull; otherwise, false
.
Implements
Remarks
To avoid raising an error, call this method to check for null column values before calling the typed Get methods (for example, GetByte, GetChar, and so on).
Applies to
Werk met ons samen op GitHub
De bron voor deze inhoud vindt u op GitHub, waar u ook problemen en pull-aanvragen kunt maken en bekijken. Raadpleeg onze gids voor inzenders voor meer informatie.