Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Data / System / Data / Odbc / OdbcConnectionOpen.cs / 1305376 / OdbcConnectionOpen.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //----------------------------------------------------------------------------- using System; using System.Data; using System.Data.Common; using System.Data.ProviderBase; using System.Threading; using SysTx = System.Transactions; namespace System.Data.Odbc { sealed internal class OdbcConnectionOpen : DbConnectionInternal { // Construct from a compiled connection string internal OdbcConnectionOpen(OdbcConnection outerConnection, OdbcConnectionString connectionOptions) { #if DEBUG try { // use this to help validate this object is only created after the following permission has been previously demanded in the current codepath if (null != outerConnection) { outerConnection.UserConnectionOptions.DemandPermission(); } else { connectionOptions.DemandPermission(); } } catch(System.Security.SecurityException) { System.Diagnostics.Debug.Assert(false, "unexpected SecurityException for current codepath"); throw; } #endif OdbcEnvironmentHandle environmentHandle = OdbcEnvironment.GetGlobalEnvironmentHandle(); outerConnection.ConnectionHandle = new OdbcConnectionHandle(outerConnection, connectionOptions, environmentHandle); } internal OdbcConnection OuterConnection { get { OdbcConnection outerConnection = (OdbcConnection)Owner; if (null == outerConnection) throw ADP.InvalidOperation("internal connection without an outer connection?"); // return outerConnection; } } override public string ServerVersion { get { return OuterConnection.Open_GetServerVersion(); } } override protected void Activate(SysTx.Transaction transaction) { OdbcConnection.ExecutePermission.Demand(); } override public DbTransaction BeginTransaction(IsolationLevel isolevel) { return BeginOdbcTransaction(isolevel); } internal OdbcTransaction BeginOdbcTransaction(IsolationLevel isolevel) { return OuterConnection.Open_BeginTransaction(isolevel); } override public void ChangeDatabase(string value) { OuterConnection.Open_ChangeDatabase(value); } override protected DbReferenceCollection CreateReferenceCollection() { return new OdbcReferenceCollection(); } override protected void Deactivate() { NotifyWeakReference(OdbcReferenceCollection.Closing); } override public void EnlistTransaction(SysTx.Transaction transaction) { OuterConnection.Open_EnlistTransaction(transaction); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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