SqlTransaction Class

SqlTransaction Class


Represents a Transact-SQL transaction to be made in a SQL Server database. This class cannot be inherited.

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


public sealed class SqlTransaction : DbTransaction


Gets the SqlConnection object associated with the transaction, or null if the transaction is no longer valid.


Specifies the IsolationLevel for this transaction.(Overrides DbTransaction.IsolationLevel.)


Commits the database transaction.(Overrides DbTransaction.Commit().)


Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object.(Inherited from MarshalByRefObject.)


Releases the unmanaged resources used by the DbTransaction.(Inherited from DbTransaction.)


Determines whether the specified object is equal to the current object.(Inherited from Object.)


Serves as the default hash function. (Inherited from Object.)


Retrieves the current lifetime service object that controls the lifetime policy for this instance.(Inherited from MarshalByRefObject.)


Gets the Type of the current instance.(Inherited from Object.)


Obtains a lifetime service object to control the lifetime policy for this instance.(Inherited from MarshalByRefObject.)


Rolls back a transaction from a pending state.(Overrides DbTransaction.Rollback().)


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


Creates a savepoint in the transaction that can be used to roll back a part of the transaction, and specifies the savepoint name.


Returns a string that represents the current object.(Inherited from Object.)

The application creates a SqlTransaction object by calling BeginTransaction on the SqlConnection object. All subsequent operations associated with the transaction (for example, committing or aborting the transaction), are performed on the SqlTransaction object.


Try/Catch exception handling should always be used when committing or rolling back a SqlTransaction. Both Commit and Rollback generate 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.

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, or if it is disposed without first being committed. Try/Catch error handling is used to handle any errors when attempting to commit or roll back the transaction.

.NET Framework
Available since 1.1

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

Return to top
© 2015 Microsoft