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DbParameter.Direction Property

Gets or sets a value that indicates whether the parameter is input-only, output-only, bidirectional, or a stored procedure return value parameter.

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

'Declaration
Public MustOverride Property Direction As ParameterDirection
'Usage
Dim instance As DbParameter 
Dim value As ParameterDirection 

value = instance.Direction

instance.Direction = value

Property Value

Type: System.Data.ParameterDirection
One of the ParameterDirection values. The default is Input.

Implements

IDataParameter.Direction

ExceptionCondition
ArgumentException

The property is not set to one of the valid ParameterDirection values.

If the ParameterDirection is output, and execution of the associated DbCommand does not return a value, the DbParameter contains a null value.

Output, InputOut, and ReturnValue parameters returned by calling ExecuteReader cannot be accessed until you call Close or Dispose on the DbDataReader.

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

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

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