SqlTransaction.Rollback Method (String)

 

Rolls back a transaction from a pending state, and specifies the transaction or savepoint name.

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

member Rollback : 
        transactionName:string -> unit

Parameters

transactionName
Type: System.String

The name of the transaction to roll back, or the savepoint to which to roll back.

Exception Condition
ArgumentException

No transaction name was specified.

InvalidOperationException

The transaction has already been committed or rolled back.

-or-

The connection is broken.

The Rollback method is equivalent to the Transact-SQL ROLLBACK TRANSACTION statement. For more information, see "Explicit Transactions" and "Transaction Savepoints" in SQL Server Books Online.

The transaction can only be rolled back from a pending state (after BeginTransaction has been called, but before Commit is called). The transaction is rolled back if it is disposed before Commit or Rollback is called.

System_CAPS_noteNote

Try/Catch exception handling should always be used when rolling back a transaction. A Rollback generates an InvalidOperationException if the connection is terminated or if the transaction has already been rolled back on the server.

For more information on SQL Server transactions, see "Explicit Transactions" and "Coding Efficient Transactions" in SQL Server Books Online.

The following example creates a SqlConnection and a SqlTransaction. It also demonstrates how to use the BeginTransaction, Commit, and Rollback methods. The transaction is rolled back on any error. Try/Catch error handling is used to handle any errors when attempting to commit or roll back the transaction.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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