Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / Data / System / Data / Common / DBConnection.cs / 1 / DBConnection.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.ComponentModel; using System.Data; #if WINFSInternalOnly internal #else public #endif abstract class DbConnection : Component, IDbConnection { // V1.2.3300 private StateChangeEventHandler _stateChangeEventHandler; protected DbConnection() : base() { } [ DefaultValue(""), RecommendedAsConfigurable(true), RefreshProperties(RefreshProperties.All), ResCategoryAttribute(Res.DataCategory_Data), ] abstract public string ConnectionString { get; set; } [ ResCategoryAttribute(Res.DataCategory_Data), ] virtual public int ConnectionTimeout { get { return ADP.DefaultConnectionTimeout; } } [ ResCategoryAttribute(Res.DataCategory_Data), ] abstract public string Database { get; } [ ResCategoryAttribute(Res.DataCategory_Data), ] abstract public string DataSource { // NOTE: if you plan on allowing the data source to be changed, you // should implement a ChangeDataSource method, in keeping with // the ChangeDatabase method paradigm. get; } ////// The associated provider factory for derived class. /// virtual protected DbProviderFactory DbProviderFactory { get { return null; } } internal DbProviderFactory ProviderFactory { get { return DbProviderFactory; } } [ Browsable(false), ] abstract public string ServerVersion { get; } [ Browsable(false), ResDescriptionAttribute(Res.DbConnection_State), ] abstract public ConnectionState State { get; } [ ResCategoryAttribute(Res.DataCategory_StateChange), ResDescriptionAttribute(Res.DbConnection_StateChange), ] virtual public event StateChangeEventHandler StateChange { add { _stateChangeEventHandler += value; } remove { _stateChangeEventHandler -= value; } } abstract protected DbTransaction BeginDbTransaction(IsolationLevel isolationLevel); public DbTransaction BeginTransaction() { return BeginDbTransaction(IsolationLevel.Unspecified); } public DbTransaction BeginTransaction(IsolationLevel isolationLevel) { return BeginDbTransaction(isolationLevel); } IDbTransaction IDbConnection.BeginTransaction() { return BeginDbTransaction(IsolationLevel.Unspecified); } IDbTransaction IDbConnection.BeginTransaction(IsolationLevel isolationLevel) { return BeginDbTransaction(isolationLevel); } abstract public void Close(); abstract public void ChangeDatabase(string databaseName); public DbCommand CreateCommand() { return CreateDbCommand(); } IDbCommand IDbConnection.CreateCommand() { return CreateDbCommand(); } abstract protected DbCommand CreateDbCommand(); virtual public void EnlistTransaction(System.Transactions.Transaction transaction) { // NOTE: This is virtual because not all providers may choose to support // distributed transactions. throw ADP.NotSupported(); } // these need to be here so that GetSchema is visible when programming to a dbConnection object. // they are overridden by the real implementations in DbConnectionBase virtual public DataTable GetSchema() { throw ADP.NotSupported(); } virtual public DataTable GetSchema(string collectionName) { throw ADP.NotSupported(); } virtual public DataTable GetSchema(string collectionName, string[] restrictionValues ) { throw ADP.NotSupported(); } protected virtual void OnStateChange(StateChangeEventArgs stateChange) { StateChangeEventHandler handler = _stateChangeEventHandler; if (null != handler) { handler(this, stateChange); } } abstract public void Open(); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //[....] //[....] //----------------------------------------------------------------------------- namespace System.Data.Common { using System; using System.ComponentModel; using System.Data; #if WINFSInternalOnly internal #else public #endif abstract class DbConnection : Component, IDbConnection { // V1.2.3300 private StateChangeEventHandler _stateChangeEventHandler; protected DbConnection() : base() { } [ DefaultValue(""), RecommendedAsConfigurable(true), RefreshProperties(RefreshProperties.All), ResCategoryAttribute(Res.DataCategory_Data), ] abstract public string ConnectionString { get; set; } [ ResCategoryAttribute(Res.DataCategory_Data), ] virtual public int ConnectionTimeout { get { return ADP.DefaultConnectionTimeout; } } [ ResCategoryAttribute(Res.DataCategory_Data), ] abstract public string Database { get; } [ ResCategoryAttribute(Res.DataCategory_Data), ] abstract public string DataSource { // NOTE: if you plan on allowing the data source to be changed, you // should implement a ChangeDataSource method, in keeping with // the ChangeDatabase method paradigm. get; } ////// The associated provider factory for derived class. /// virtual protected DbProviderFactory DbProviderFactory { get { return null; } } internal DbProviderFactory ProviderFactory { get { return DbProviderFactory; } } [ Browsable(false), ] abstract public string ServerVersion { get; } [ Browsable(false), ResDescriptionAttribute(Res.DbConnection_State), ] abstract public ConnectionState State { get; } [ ResCategoryAttribute(Res.DataCategory_StateChange), ResDescriptionAttribute(Res.DbConnection_StateChange), ] virtual public event StateChangeEventHandler StateChange { add { _stateChangeEventHandler += value; } remove { _stateChangeEventHandler -= value; } } abstract protected DbTransaction BeginDbTransaction(IsolationLevel isolationLevel); public DbTransaction BeginTransaction() { return BeginDbTransaction(IsolationLevel.Unspecified); } public DbTransaction BeginTransaction(IsolationLevel isolationLevel) { return BeginDbTransaction(isolationLevel); } IDbTransaction IDbConnection.BeginTransaction() { return BeginDbTransaction(IsolationLevel.Unspecified); } IDbTransaction IDbConnection.BeginTransaction(IsolationLevel isolationLevel) { return BeginDbTransaction(isolationLevel); } abstract public void Close(); abstract public void ChangeDatabase(string databaseName); public DbCommand CreateCommand() { return CreateDbCommand(); } IDbCommand IDbConnection.CreateCommand() { return CreateDbCommand(); } abstract protected DbCommand CreateDbCommand(); virtual public void EnlistTransaction(System.Transactions.Transaction transaction) { // NOTE: This is virtual because not all providers may choose to support // distributed transactions. throw ADP.NotSupported(); } // these need to be here so that GetSchema is visible when programming to a dbConnection object. // they are overridden by the real implementations in DbConnectionBase virtual public DataTable GetSchema() { throw ADP.NotSupported(); } virtual public DataTable GetSchema(string collectionName) { throw ADP.NotSupported(); } virtual public DataTable GetSchema(string collectionName, string[] restrictionValues ) { throw ADP.NotSupported(); } protected virtual void OnStateChange(StateChangeEventArgs stateChange) { StateChangeEventHandler handler = _stateChangeEventHandler; if (null != handler) { handler(this, stateChange); } } abstract public void Open(); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ResourceExpressionEditor.cs
- ExpressionBuilder.cs
- BuiltInExpr.cs
- FixedSOMSemanticBox.cs
- GeneratedCodeAttribute.cs
- Rule.cs
- VariableBinder.cs
- SpecialFolderEnumConverter.cs
- WebPartChrome.cs
- ResourceContainer.cs
- KeyProperty.cs
- ISessionStateStore.cs
- DataGridColumn.cs
- ComboBox.cs
- BitmapEffectDrawingContent.cs
- JulianCalendar.cs
- CollectionViewGroup.cs
- AliasedSlot.cs
- UnlockInstanceCommand.cs
- TreeView.cs
- MsmqPoisonMessageException.cs
- StreamWriter.cs
- CompositeFontParser.cs
- FrameworkName.cs
- BaseWebProxyFinder.cs
- AssemblyName.cs
- TextTreeExtractElementUndoUnit.cs
- ScrollChrome.cs
- OutputCache.cs
- VirtualPathProvider.cs
- EventMemberCodeDomSerializer.cs
- AccessDataSource.cs
- ManifestResourceInfo.cs
- DatagridviewDisplayedBandsData.cs
- HttpListenerRequest.cs
- RuntimeIdentifierPropertyAttribute.cs
- ListViewGroupConverter.cs
- Signature.cs
- XPathParser.cs
- IconConverter.cs
- SerializableReadOnlyDictionary.cs
- ServiceBusyException.cs
- CoreSwitches.cs
- documentation.cs
- ArrayWithOffset.cs
- RequiredArgumentAttribute.cs
- ConfigXmlSignificantWhitespace.cs
- UriTemplateMatch.cs
- DataGridViewCellCollection.cs
- InternalSafeNativeMethods.cs
- QueryResponse.cs
- PenThread.cs
- SymbolDocumentInfo.cs
- XamlTreeBuilder.cs
- SystemUdpStatistics.cs
- DBCSCodePageEncoding.cs
- BaseDataList.cs
- WindowsTooltip.cs
- HttpCapabilitiesSectionHandler.cs
- UnaryNode.cs
- KeyFrames.cs
- ProfileManager.cs
- newinstructionaction.cs
- NetMsmqSecurity.cs
- ResXBuildProvider.cs
- Buffer.cs
- CachedPathData.cs
- CachedCompositeFamily.cs
- CreateUserErrorEventArgs.cs
- PropertyValueUIItem.cs
- CoreSwitches.cs
- DataGridViewRowConverter.cs
- PackageDigitalSignatureManager.cs
- CustomErrorsSectionWrapper.cs
- HyperlinkAutomationPeer.cs
- EndpointAddressElementBase.cs
- BinHexEncoder.cs
- SqlAggregateChecker.cs
- InnerItemCollectionView.cs
- StylusPointPropertyInfo.cs
- SchemaConstraints.cs
- FixedNode.cs
- NonVisualControlAttribute.cs
- PrtCap_Base.cs
- UnsafeNativeMethods.cs
- FlowLayoutPanel.cs
- ProcessHost.cs
- MimeMultiPart.cs
- LifetimeMonitor.cs
- FtpCachePolicyElement.cs
- UpdatePanel.cs
- GridErrorDlg.cs
- ContextStack.cs
- BoundColumn.cs
- ReliabilityContractAttribute.cs
- CmsUtils.cs
- QueryException.cs
- InvalidProgramException.cs
- WS2007HttpBindingCollectionElement.cs
- CodeDirectionExpression.cs