SqlTransaction Sınıf

Tanım

public ref class SqlTransaction sealed : System::Data::Common::DbTransaction

public ref class SqlTransaction sealed : MarshalByRefObject, IDisposable, System::Data::IDbTransaction

public sealed class SqlTransaction : System.Data.Common.DbTransaction

public sealed class SqlTransaction : MarshalByRefObject, IDisposable, System.Data.IDbTransaction

type SqlTransaction = class
    inherit DbTransaction

type SqlTransaction = class
    inherit MarshalByRefObject
    interface IDbTransaction
    interface IDisposable

Public NotInheritable Class SqlTransaction
Inherits DbTransaction

Public NotInheritable Class SqlTransaction
Inherits MarshalByRefObject
Implements IDbTransaction, IDisposable

Devralma

Object

DbTransaction

SqlTransaction

Devralma

Object

MarshalByRefObject

DbTransaction

SqlTransaction

Devralma

Object

MarshalByRefObject

SqlTransaction

Uygulamalar

IDbTransaction IDisposable

Örnekler

Aşağıdaki örnek bir SqlConnection ve SqlTransactionoluşturur. Ayrıca , Commitve Rollback yöntemlerinin BeginTransactionnasıl kullanılacağını da gösterir. İşlem herhangi bir hatada veya ilk işlenmeden atılırsa geri alınır. Try / Catch hata işleme işlemi, işlemi işlemeye veya geri alma işlemine çalışırken oluşan hataları işlemek için kullanılır.

private static void ExecuteSqlTransaction(string connectionString)
{
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        connection.Open();

        SqlCommand command = connection.CreateCommand();
        SqlTransaction transaction;

        // Start a local transaction.
        transaction = connection.BeginTransaction();

        // Must assign both transaction object and connection
        // to Command object for a pending local transaction
        command.Connection = connection;
        command.Transaction = transaction;

        try
        {
            command.CommandText =
                "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')";
            command.ExecuteNonQuery();
            command.CommandText =
                "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')";
            command.ExecuteNonQuery();

            // Attempt to commit the transaction.
            transaction.Commit();
            Console.WriteLine("Both records are written to database.");
        }
        catch (Exception ex)
        {
            Console.WriteLine("Commit Exception Type: {0}", ex.GetType());
            Console.WriteLine("  Message: {0}", ex.Message);

            // Attempt to roll back the transaction.
            try
            {
                transaction.Rollback();
            }
            catch (Exception ex2)
            {
                // This catch block will handle any errors that may have occurred
                // on the server that would cause the rollback to fail, such as
                // a closed connection.
                Console.WriteLine("Rollback Exception Type: {0}", ex2.GetType());
                Console.WriteLine("  Message: {0}", ex2.Message);
            }
        }
    }
}

Private Sub ExecuteSqlTransaction(ByVal connectionString As String)
    Using connection As New SqlConnection(connectionString)
        connection.Open()

        Dim command As SqlCommand = connection.CreateCommand()
        Dim transaction As SqlTransaction

        ' Start a local transaction
        transaction = connection.BeginTransaction()

        ' Must assign both transaction object and connection
        ' to Command object for a pending local transaction.
        command.Connection = connection
        command.Transaction = transaction

        Try
            command.CommandText = _
              "Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')"
            command.ExecuteNonQuery()
            command.CommandText = _
              "Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')"

            command.ExecuteNonQuery()

            ' Attempt to commit the transaction.
            transaction.Commit()
            Console.WriteLine("Both records are written to database.")

        Catch ex As Exception
            Console.WriteLine("Commit Exception Type: {0}", ex.GetType())
            Console.WriteLine("  Message: {0}", ex.Message)

            ' Attempt to roll back the transaction.
            Try
                transaction.Rollback()

            Catch ex2 As Exception
                ' This catch block will handle any errors that may have occurred
                ' on the server that would cause the rollback to fail, such as
                ' a closed connection.
                Console.WriteLine("Rollback Exception Type: {0}", ex2.GetType())
                Console.WriteLine("  Message: {0}", ex2.Message)
            End Try
        End Try
    End Using
End Sub

Açıklamalar

Uygulama, nesne üzerinde SqlConnection çağırarak BeginTransaction bir SqlTransaction nesnesi oluşturur. İşlemle ilişkili sonraki tüm işlemler (örneğin, işlemi işleme veya durdurma), nesne üzerinde SqlTransaction gerçekleştirilir.

SQL Server işlemleri hakkında daha fazla bilgi için bkz. Açık İşlemler ve Verimli İşlemleri Kodlama.

Özellikler

Yöntemler

Belirtik Arabirim Kullanımları

Şunlara uygulanır

Ayrıca bkz.

• Yerel İşlemler
• ADO.NET’e Genel Bakış