SqlTransaction 類別

定義

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

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

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

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

type SqlTransaction = class
    inherit MarshalByRefObject
    interface IDbTransaction
    interface IDisposable

type SqlTransaction = class
    inherit DbTransaction

Public NotInheritable Class SqlTransaction
Inherits MarshalByRefObject
Implements IDbTransaction, IDisposable

Public NotInheritable Class SqlTransaction
Inherits DbTransaction

繼承

Object

MarshalByRefObject

SqlTransaction

繼承

Object

MarshalByRefObject

DbTransaction

SqlTransaction

實作

IDbTransaction IDisposable

範例

以下範例會產生 a SqlConnection 和 SqlTransaction。 同時示範如何使用 BeginTransaction、 Commit及 Rollback 方法。 交易在任何錯誤時或未先提交就被處置時會被回滾。 Try / Catch 錯誤處理用於在嘗試提交或回滾交易時處理錯誤。

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

備註

應用程式透過呼叫BeginTransactionSqlConnection物件來建立SqlTransaction物件。 所有與該交易相關的後續操作（例如，提交或中止交易）都會在物件上 SqlTransaction 執行。

欲了解更多SQL Server交易資訊，請參閱 Explicit Transactions 及 Coding Efficient Transactions。

另請參閱

• 本地交易
• ADO.NET 概觀