'Declaration Public Class UniTransaction Inherits Devart.Common.DbTransactionBase Implements System.Data.IDbTransaction, System.IDisposable
public class UniTransaction : Devart.Common.DbTransactionBase, System.Data.IDbTransaction, System.IDisposable
'Declaration Public Class UniTransaction Inherits Devart.Common.DbTransactionBase Implements System.Data.IDbTransaction, System.IDisposable
public class UniTransaction : Devart.Common.DbTransactionBase, System.Data.IDbTransaction, System.IDisposable
The application creates a UniTransaction object by calling UniConnection.BeginTransaction on the UniConnection object. All subsequent operations associated with the transaction (for example, committing or aborting the transaction), are performed on the UniTransaction object.
The correlation between UniConnection and UniTransaction is always 1:1.
public void RunUniTransaction(string myConnString) { UniConnection myConnection = new UniConnection(myConnString); myConnection.Open(); UniCommand myCommand = new UniCommand(); UniTransaction myTrans; // Start a local transaction myTrans = myConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted); // Assign transaction object for a pending local transaction myCommand.Transaction = myTrans; myCommand.Connection = myConnection; 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(); } }
Public Sub RunUniTransaction(ByVal myConnString As String) Dim myConnection As New UniConnection(myConnString) myConnection.Open() Dim myCommand As New UniCommand Dim myTrans As UniTransaction ' Start a local transaction myTrans = myConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted) ' Assign transaction object for a pending local transaction myCommand.Transaction = myTrans myCommand.Connection = myConnection 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
System.Object
System.MarshalByRefObject
System.Data.Common.DbTransaction
Devart.Common.DbTransactionBase
Devart.Data.Universal.UniTransaction
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