SqlParameter.Direction Property

Definition

Namespace:

Microsoft.Data.SqlClient

Assembly:

Microsoft.Data.SqlClient.dll

Package:

Microsoft.Data.SqlClient v5.2.0

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

public:
 virtual property System::Data::ParameterDirection Direction { System::Data::ParameterDirection get(); void set(System::Data::ParameterDirection value); };

public override System.Data.ParameterDirection Direction { get; set; }

member this.Direction : System.Data.ParameterDirection with get, set

Public Overrides Property Direction As ParameterDirection

Property Value

ParameterDirection

One of the ParameterDirection values. The default is Input.

Implements

Direction

Exceptions

ArgumentException

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

Examples

The following example creates a SqlParameter and sets some of its properties.

Commands and Parameters

DataAdapter Parameters

SQL Server and ADO.NET

Remarks

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

Output, InputOut, and ReturnValue parameters returned by calling ExecuteReader cannot be accessed until you close the SqlDataReader.