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OleDbCommand.Connection Property

Gets or sets the OleDbConnection used by this instance of the OleDbCommand.

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

public OleDbConnection Connection { get; set; }

Property Value

Type: System.Data.OleDb.OleDbConnection
The connection to a data source. The default value is null.


The Connection property was changed while a transaction was in progress.

You cannot set the Connection, CommandType and CommandText properties if the current connection is performing an execute or fetch operation.

If you set Connection while a transaction is in progress and the Transaction property is not null, an InvalidOperationException is generated. If the Transaction property is not null and the transaction has already been committed or rolled back, Transaction is set to null.

The following example creates an OleDbCommand and sets some of its properties.

public void CreateOleDbCommand() 
   string queryString = "SELECT * FROM Categories ORDER BY CategoryID";
   OleDbCommand command = new OleDbCommand(queryString);
   command.Connection = new OleDbConnection
      ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=NWIND_RW.MDB");
   command.CommandTimeout = 20;

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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