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PipelineComponent.AcquireConnections Method

Establishes a connection to a connection manager.

Namespace: Microsoft.SqlServer.Dts.Pipeline
Assembly: Microsoft.SqlServer.PipelineHost (in microsoft.sqlserver.pipelinehost.dll)

public virtual void AcquireConnections (
	Object transaction
public void AcquireConnections (
	Object transaction
public function AcquireConnections (
	transaction : Object



The transaction the connection is participating in.

AcquireConnections is called during both component design and execution. Components that connect to external data sources should establish their connections during this method. Any connection established during this method should be cached in a local member variable and released in the ReleaseConnections method. Connections should only be established during AcquireConnections.

The following example shows a component that connects to an ADO.NET connection manager during AcquireConnections.

public override void AcquireConnections(object transaction)
    if (ComponentMetaData.RuntimeConnectionCollection[0].ConnectionManager != null)
            // Convert the native IDTSConnectionManager90 to the managed ConnectionManager,
            // then retrieve the underlying connection through the InnerObject.
            ConnectionManager cm = Microsoft.SqlServer.Dts.Runtime.DtsConvert.ToConnectionManager(ComponentMetaData.RuntimeConnectionCollection[0].ConnectionManager);
            ConnectionManagerAdoNet cmado = cm.InnerObject  as ConnectionManagerAdoNet;

            // If the InnerObject is not an ConnectionManagerAdoNet, then
            // the cmado object is null.
            if( cmado == null )
                throw new Exception("The ConnectionManager " + cm.Name + " is not an ADO.NET connection.");

            // Get the underlying connection object.
            this.oledbConnection = cmado.AcquireConnection(transaction) as OleDbConnection;

            if( this.oledbConnection == null )
                throw new Exception("The ConnectionManager " + cm.Name + " is not an ADO.NET connection.");

            isConnected = true;

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Development Platforms

For a list of the supported platforms, see Hardware and Software Requirements for Installing SQL Server 2005.

Target Platforms