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IDataReader.GetSchemaTable Method

Returns a DataTable that describes the column metadata of the IDataReader.

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

DataTable GetSchemaTable()

Return Value

Type: System.Data.DataTable
A DataTable that describes the column metadata.

ExceptionCondition
InvalidOperationException

The IDataReader is closed.

The implementation of GetSchemaTable method for the .NET Framework Data Provider for OLE DB maps to the OLE DB IColumnsRowset::GetColumnsRowset method, while implementations for other .NET Framework data providers do not use an OLE DB provider layer. The order in which GetSchemaTable returns metadata about each column in a table, and the DataReader columns that are returned, vary depending on which data provider you use. The following table lists data providers and members that implement GetSchemaTable.

Data Provider

Member

.NET Data Provider for ODBC

OdbcDataReader.GetSchemaTable.

.NET Data Provider for OLE DB

OleDbDataReader.GetSchemaTable.

.NET Data Provider for Oracle

OracleDataReader.GetSchemaTable.

.NET Data Provider for SQL Server

SqlDataReader.GetSchemaTable.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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