EnlistTransaction Method (DbConnectionBase)

In This Topic

Enlists in the specified transaction.

Syntax

Visual Basic
C#

'Declaration
 
Public Overrides Sub EnlistTransaction( _
   ByVal transaction As Transaction _
)

public override void EnlistTransaction( 
   Transaction transaction
)

Parameters

transaction: A reference to an existing System.Transactions.Transaction in which to enlist.

Remarks

Once a connection is explicitly enlisted in a distributed transaction, it cannot be unenlisted or enlisted in another transaction until the first transaction finishes.

Example

These samples demonstrate usage of EnlistTransaction.

csharp

DB2Command1.Connection=DB2Connection1;
using (TransactionScope transScope = new TransactionScope()) {
 DB2Connection1.Open();
 DB2Command1.ExecuteNonQuery();
 transScope.Complete();
}
DB2Connection1.Close();

- or -

DB2Command1.Connection=DB2Connection1;
DB2Connection1.Open();
using (TransactionScope transScope = new TransactionScope()) {
 DB2Connection1.EnlistTransaction(Transaction.Current);
 DB2Command1.ExecuteNonQuery();
 transScope.Complete();
}
DB2Connection1.Close();

- or -

CommittableTransaction cmtTx = new CommittableTransaction();
DB2Connection1.Open();
DB2Connection1.EnlistTransaction(cmtTx);
DB2Command1.ExecuteNonQuery();
DB2Connection1.Close();

Visual Basic

Me.DB2Command1.Connection = Me.DB2Connection1
Using transScope = New Transactions.TransactionScope
  Me.DB2Connection1.Open()
  Me.DB2Command1.ExecuteNonQuery()
  transScope.Complete()
End Using
Me.DB2Connection1.Close()

- or -

Me.DB2Command1.Connection = Me.DB2Connection1
Me.DB2Connection1.Open()
Using transScope = New Transactions.TransactionScope
  Me.DB2Connection1.EnlistTransaction(Transactions.Transaction.Current)
  Me.DB2Command1.ExecuteNonQuery()
  transScope.Complete()
End Using
Me.DB2Connection1.Close()

- or -

Dim cmtTx As New Transactions.CommittableTransaction
Me.DB2Connection1.Open()
Me.DB2Connection1.EnlistTransaction(cmtTx)
Me.DB2Command1.ExecuteNonQuery()
Me.DB2Connection1.Close()

Reference

DbConnectionBase Class
DbConnectionBase Members

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