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OracleDataReader.IsDBNull Method

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

Namespace:  System.Data.OracleClient
Assembly:  System.Data.OracleClient (in System.Data.OracleClient.dll)

'Declaration
Public Overrides Function IsDBNull ( _
	i As Integer _
) As Boolean

Parameters

i
Type: System.Int32

The zero-based column ordinal.

Return Value

Type: System.Boolean
true if the specified column value is equivalent to DBNull; otherwise, false.

Implements

IDataRecord.IsDBNull(Int32)

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).

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
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