SQLiteTransaction Class

In This Topic

Represents a SQL transaction to be made in the SQLite database.

Syntax

Visual Basic
C#

'Declaration
 
Public Class SQLiteTransaction 
   Inherits Devart.Common.DbTransactionBase
   Implements System.Data.IDbTransaction, System.IDisposable

public class SQLiteTransaction : Devart.Common.DbTransactionBase, System.Data.IDbTransaction, System.IDisposable

Remarks

The application creates a SQLiteTransaction object by calling SQLiteConnection.BeginTransaction on the SQLiteConnection object. All subsequent operations associated with the transaction (for example, committing or aborting the transaction), are performed on the SQLiteTransaction object.

The correlation between SQLiteConnection and SQLiteTransaction is always 1:1.

Example

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

csharp

public static void RunSQLiteTransaction(string myConnString) {
        using (SQLiteConnection sqConnection = new SQLiteConnection(myConnString)) {
                sqConnection.Open();
                // Start a local transaction
                SQLiteTransaction myTrans = sqConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
                SQLiteCommand sqCommand = sqConnection.CreateCommand();
                try {
                        sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(52, 'DEVELOPMENT')";
                        sqCommand.ExecuteNonQuery();
                        sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(62, '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 {
                        sqCommand.Dispose();
                        myTrans.Dispose();
                }
    }
}

Visual Basic

Public Shared Sub RunSQLiteTransaction(myConnString As String)
        Using sqConnection As New SQLiteConnection(myConnString)
                sqConnection.Open()
                ' Start a local transaction
                Dim myTrans As SQLiteTransaction = sqConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted)
                Dim sqCommand As SQLiteCommand = sqConnection.CreateCommand()
                Try
                        sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(52, 'DEVELOPMENT')"
                        sqCommand.ExecuteNonQuery()
                        sqCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(62, '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
                        sqCommand.Dispose()
                        myTrans.Dispose()
                End Try
    End Using
End Sub

Inheritance Hierarchy

System.Object
   System.MarshalByRefObject
      System.Data.Common.DbTransaction
         Devart.Common.DbTransactionBase
            Devart.Data.SQLite.SQLiteTransaction

Reference

SQLiteTransaction Members
Devart.Data.SQLite Namespace
SQLiteDataReader Class
SQLiteConnection Class

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