DesignerTransactionCloseEventHandler Delegate
Represents the method that handles the TransactionClosed and TransactionClosing events of a designer.
Assembly: System (in System.dll)
[ComVisibleAttribute(true)] [HostProtectionAttribute(SecurityAction::LinkDemand, SharedState = true)] public delegate void DesignerTransactionCloseEventHandler( Object^ sender, DesignerTransactionCloseEventArgs^ e )
Parameters
- sender
- Type: System::Object
The source of the event.
- e
- Type: System.ComponentModel.Design::DesignerTransactionCloseEventArgs
A DesignerTransactionCloseEventArgs that contains the event data.
When you create a DesignerTransactionCloseEventHandler delegate, you identify the method that will handle the event. To associate the event with your event handler, add an instance of the delegate to the event. The event handler is called whenever the event occurs, unless you remove the delegate. For more information about event-handler delegates, see Events and Delegates.
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The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: SharedState. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes. |
The following example demonstrates registering a DesignerTransactionCloseEventHandler and handling the TransactionClosing and TransactionClosed events.
public: void LinkDesignerTransactionCloseEvent( IDesignerHost^ host ) { // Registers an event handler for the designer TransactionClosing and TransactionClosed events. host->TransactionClosing += gcnew DesignerTransactionCloseEventHandler( this, &DesignerTransactionCloseEventHandlerExample::OnTransactionClose ); host->TransactionClosed += gcnew DesignerTransactionCloseEventHandler( this, &DesignerTransactionCloseEventHandlerExample::OnTransactionClose ); } private: void OnTransactionClose( Object^ sender, DesignerTransactionCloseEventArgs^ e ) { // Displays transaction close information on the console. if ( e->TransactionCommitted ) { Console::WriteLine( "Transaction has been committed." ); } else { Console::WriteLine( "Transaction has not yet been committed." ); } }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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