OdbcTransaction.Commit Method
Important
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Commits the database transaction.
public:
override void Commit();
public:
virtual void Commit();
public override void Commit ();
public void Commit ();
override this.Commit : unit -> unit
abstract member Commit : unit -> unit
override this.Commit : unit -> unit
Public Overrides Sub Commit ()
Public Sub Commit ()
An error occurred while trying to commit the transaction.
The transaction has already been committed or rolled back.
-or-
The connection is broken.
The following example creates an OdbcConnection and an OdbcTransaction. It also demonstrates how to use the BeginTransaction, Commit, and Rollback methods.
public static void ExecuteTransaction(string connectionString)
{
using (OdbcConnection connection =
new OdbcConnection(connectionString))
{
OdbcCommand command = new OdbcCommand();
OdbcTransaction transaction = null;
// Set the Connection to the new OdbcConnection.
command.Connection = connection;
// Open the connection and execute the transaction.
try
{
connection.Open();
// Start a local transaction
transaction = connection.BeginTransaction();
// Assign transaction object for a pending local transaction.
command.Connection = connection;
command.Transaction = transaction;
// Execute the commands.
command.CommandText =
"Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')";
command.ExecuteNonQuery();
command.CommandText =
"Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')";
command.ExecuteNonQuery();
// Commit the transaction.
transaction.Commit();
Console.WriteLine("Both records are written to database.");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
try
{
// Attempt to roll back the transaction.
transaction.Rollback();
}
catch
{
// Do nothing here; transaction is not active.
}
}
// The connection is automatically closed when the
// code exits the using block.
}
}
Public Sub ExecuteTransaction(ByVal connectionString As String)
Using connection As New OdbcConnection(connectionString)
Dim command As New OdbcCommand()
Dim transaction As OdbcTransaction
' Set the Connection to the new OdbcConnection.
command.Connection = connection
' Open the connection and execute the transaction.
Try
connection.Open()
' Start a local transaction.
transaction = connection.BeginTransaction()
' Assign transaction object for a pending local transaction.
command.Connection = connection
command.Transaction = transaction
' Execute the commands.
command.CommandText =
"Insert into Region (RegionID, RegionDescription) VALUES (100, 'Description')"
command.ExecuteNonQuery()
command.CommandText =
"Insert into Region (RegionID, RegionDescription) VALUES (101, 'Description')"
command.ExecuteNonQuery()
' Commit the transaction.
transaction.Commit()
Console.WriteLine("Both records are written to database.")
Catch ex As Exception
Console.WriteLine(ex.Message)
' Try to rollback the transaction
Try
transaction.Rollback()
Catch
' Do nothing here; transaction is not active.
End Try
End Try
' The connection is automatically closed when the
' code exits the Using block.
End Using
End Sub
Produkt | Versioner |
---|---|
.NET | 8 (package-provided), 9 (package-provided) |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1 |
.NET Standard | 2.0 (package-provided) |
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