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Devart.Data.SQLite Namespace / SQLiteConnection Class / Rollback Method
Example

In This Topic
    Rollback Method (SQLiteConnection)
    In This Topic
    Rolls back a transaction from a pending state.
    Syntax
    'Declaration
     
    Public Sub Rollback() 
    public void Rollback()
    Example
    The following example demonstrates how to use Commit and Rollback methods.
    public void RunSQLiteTransaction(string myConnString)
    {
      SQLiteConnection sqConnection = new SQLiteConnection(myConnString);
      sqConnection.Open();
    
      SQLiteCommand sqCommand = new SQLiteCommand();
      sqConnection.BeginTransaction();
      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();
        sqConnection.Commit();
        Console.WriteLine("Both records are written to database.");
      }
      catch(Exception e)
      {
        sqConnection.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()
      sqConnection.BeginTransaction()
      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()
        sqConnection.Commit()
        Console.WriteLine("Both records are written to database.")
      Catch e As Exception
        sqConnection.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