Commit Method

Visual Basic
C#

'Declaration
 
Public Overrides Sub Commit()

public override void Commit()

The Commit method is equivalent to the SQL COMMIT statement.

The following example creates a SqlConnection and a SqlTransaction. It also demonstrates how to use the BeginTransaction, Commit, and Rollback methods.

csharp

public void RunSqlTransaction(string myConnString)
{
  SqlConnection myConnection = new SqlConnection(myConnString);
  myConnection.Open();

  SqlCommand myCommand = new SqlCommand();
  SqlTransaction myTrans;

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

  try
  {
    myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')";
    myCommand.ExecuteNonQuery();
    myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(60, 'PRODUCTION')";
    myCommand.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
  {
    myConnection.Close();
  }
}

Visual Basic

Public Sub RunSqlTransaction(myConnString As String)
  Dim myConnection As New SqlConnection(myConnString)
  myConnection.Open()

  Dim myCommand As New SqlCommand()
  Dim myTrans As SqlTransaction

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

  Try
    myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(50, 'DEVELOPMENT')"
    myCommand.ExecuteNonQuery()
    myCommand.CommandText = "INSERT INTO Test.Dept(DeptNo, DName) Values(60, 'PRODUCTION')"
    myCommand.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
    myConnection.Close()
  End Try
End Sub

Reference

SqlTransaction Class
SqlTransaction Members
BeginTransaction Method
Rollback Method