Firebird ADO.NET Provider SDK Documentation - v1.7

FbDataReader.IsDBNull Method 

Gets a whether the column contains non-existent or missing values.

[Visual Basic]
NotOverridable Public Function IsDBNull( _
   ByVal i As Integer _
) As Boolean _
    Implements IDataRecord.IsDBNull
[C#]
public bool IsDBNull(
   int i
);

Parameters

i
The zero-based column ordinal.

Return Value

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

Implements

IDataRecord.IsDBNull

See Also

FbDataReader Class | FirebirdSql.Data.Firebird Namespace