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GetTextReader Method

Teradata.Client.Provider Namespace > TdDataReader Class : GetTextReader Method
Column ordinal (see TdDataReader.GetOrdinal).
Gets the value of the specified field (column) as a IO.TextReader.
Public Overrides NotOverridable Function GetTextReader( _
   ByVal ordinal As Integer _
) As TextReader
Dim instance As TdDataReader
Dim ordinal As Integer
Dim value As TextReader
value = instance.GetTextReader(ordinal)
public override TextReader GetTextReader( 
   int ordinal
TextReader^ GetTextReader( 
   int ordinal
) override 


Column ordinal (see TdDataReader.GetOrdinal).

Return Value

Returns the value of the specified field represented as a TextReader type.
ordinal is less than zero or ordinal is equal to or greater than TdDataReader.FieldCount.
The field is null or cannot be converted into a TextReader.
CommandBehavior is set to SchemaOnly, or there is no data for the row or column, or preceding columns are no longer accessible.
The TdDataReader is closed.
The Teradata Database returned an error, or .NET Data Provider for Teradata detected an error.
Use this method to retrieve columns of type CLOB, JSON, Char or VarChar. This method may be used with either SequentialAccess or Default command behaviour.

The TextReader will be disposed when you read another column, row or result set.


Target Platforms: Windows 7, Windows 8, Windows 8.1, Windows 10, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2

See Also


TdDataReader Class
TdDataReader Members