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Devart.Data.SQLite Namespace / SQLiteConnection Class / BeginTransaction Method / BeginTransaction() Method
Example

BeginTransaction() Method
Begins a database transaction.
Syntax
'Declaration
 
Public Overloads Shadows Function BeginTransaction() As SQLiteTransaction
 

Return Value

An object representing the new transaction.
Remarks
To commit or roll back the transaction, you must explicitly use the Commit or Rollback methods.
Example
The following example creates a SQLiteConnection and a SQLiteTransaction. It also demonstrates how to use the BeginTransaction(), Commit, and Rollback methods.
public void RunSQLiteTransaction(string myConnString)
{
  SQLiteConnection sqConnection = new SQLiteConnection(myConnString);
  sqConnection.Open();

  SQLiteCommand sqCommand = new SQLiteCommand();
  sqCommand.Connection = sqConnection;
  SQLiteTransaction myTrans;

  // Start a local transaction
  myTrans = sqConnection.BeginTransaction();
  // Assign transaction object for a pending local transaction
  sqCommand.Transaction = myTrans;

  try
  {
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')";
    sqCommand.ExecuteNonQuery();
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(60, 'PRODUCTION')";
    sqCommand.ExecuteNonQuery();
    myTrans.Commit();
    Console.WriteLine("Both records are written to database.");
  }
  catch(Exception e)
  {
    myTrans.Rollback();
    Console.WriteLine(e.ToString());
    Console.WriteLine("Neither record was written to database.");
  }
  finally
  {
    sqConnection.Close();
  }
}
Public Sub RunSQLiteTransaction(myConnString As String)
  Dim sqConnection As New SQLiteConnection(myConnString)
  sqConnection.Open()

  Dim sqCommand As New SQLiteCommand()
  sqCommand.Connection = sqConnection
  Dim myTrans As SQLiteTransaction

  ' Start a local transaction
  myTrans = sqConnection.BeginTransaction()
  ' Assign transaction object for a pending local transaction
  sqCommand.Transaction = myTrans

  Try
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')"
    sqCommand.ExecuteNonQuery()
    sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(60, 'PRODUCTION')"
    sqCommand.ExecuteNonQuery()
    myTrans.Commit()
    Console.WriteLine("Both records are written to database.")
  Catch e As Exception
    myTrans.Rollback()
    Console.WriteLine(e.ToString())
    Console.WriteLine("Neither record was written to database.")
  Finally
    sqConnection.Close()
  End Try
End Sub
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also