Класс Sequence
Defines a control flow that is a subset of the package control flow. Use Sequence containers to group the package into multiple separate control flows that each contain one or more tasks and containers that run within the overall package control flow. This class cannot be inherited.
Иерархия наследования
System.Object
Microsoft.SqlServer.Dts.Runtime.DtsObject
Microsoft.SqlServer.Dts.Runtime.Executable
Microsoft.SqlServer.Dts.Runtime.DtsContainer
Microsoft.SqlServer.Dts.Runtime.EventsProvider
Microsoft.SqlServer.Dts.Runtime.Sequence
Пространство имен: Microsoft.SqlServer.Dts.Runtime
Сборка: Microsoft.SqlServer.ManagedDTS (в Microsoft.SqlServer.ManagedDTS.dll)
Синтаксис
'Декларация
Public NotInheritable Class Sequence _
Inherits EventsProvider _
Implements IDTSSequence, IDTSPropertiesProvider, IDTSPropertiesProviderEx, IDTSPackagePath, _
IDTSExecutionPath
'Применение
Dim instance As Sequence
public sealed class Sequence : EventsProvider,
IDTSSequence, IDTSPropertiesProvider, IDTSPropertiesProviderEx, IDTSPackagePath, IDTSExecutionPath
public ref class Sequence sealed : public EventsProvider,
IDTSSequence, IDTSPropertiesProvider, IDTSPropertiesProviderEx, IDTSPackagePath, IDTSExecutionPath
[<SealedAttribute>]
type Sequence =
class
inherit EventsProvider
interface IDTSSequence
interface IDTSPropertiesProvider
interface IDTSPropertiesProviderEx
interface IDTSPackagePath
interface IDTSExecutionPath
end
public final class Sequence extends EventsProvider implements IDTSSequence, IDTSPropertiesProvider, IDTSPropertiesProviderEx, IDTSPackagePath, IDTSExecutionPath
Тип Sequence обеспечивает доступ к следующим элементам.
Свойства
Имя | Описание | |
---|---|---|
CreationName | Returns the string that is used to create an instance of the DtsContainer object. This property is read-only. (Производный от DtsContainer.) | |
DebugMode | Gets or sets a Boolean that indicates whether the DtsContainer object is in debug mode and whether it should fire the OnBreakpointHit event while running. (Производный от DtsContainer.) | |
DelayValidation | Gets or sets a Boolean that indicates whether validation of the task is delayed until run time. The default value is false. (Производный от DtsContainer.) | |
Description | Gets or sets the description of the DtsContainer object. (Производный от DtsContainer.) | |
Disable | A Boolean that indicates if the DtsContainer object is disabled. (Производный от DtsContainer.) | |
DisableEventHandlers | Gets or sets a Boolean that indicates whether the event handlers on task are disabled. (Производный от EventsProvider.) | |
EventHandlers | Returns a collection of event handler objects. This field is read-only. (Производный от EventsProvider.) | |
EventInfos | Returns a collection of EventInfo objects. This field is read-only. (Производный от EventsProvider.) | |
Executables | Returns a collection of executable objects processed by the run-time engine during execution of this Sequence container. This property is read-only. | |
ExecutionDuration | Returns a value that indicates the amount of time that the container spent in execution, in milliseconds. This property is read-only. (Производный от DtsContainer.) | |
ExecutionResult | Returns a value that indicates the success or failure of the execution of the DtsContainer object. (Производный от DtsContainer.) | |
ExecutionStatus | Returns a value that indicates the current status of the execution of the DtsContainer object at the time of the call. (Производный от DtsContainer.) | |
FailPackageOnFailure | Gets or sets a Boolean that indicates whether the package fails when a child container fails. This property is used on containers, not the package itself. (Производный от DtsContainer.) | |
FailParentOnFailure | Gets or sets a Boolean that defines whether the parent container fails when a child container fails. (Производный от DtsContainer.) | |
ForcedExecutionValue | If the ForceExecutionValue property is set to True, gets or sets a value that specifies the optional execution value that the package returns. (Производный от DtsContainer.) | |
ForceExecutionResult | Gets or sets a DTSForcedExecResult enumeration value that specifies the forced execution result of the container. (Производный от DtsContainer.) | |
ForceExecutionValue | Gets or sets a Boolean that indicates whether the execution value of the container should be forced to contain a particular value. (Производный от DtsContainer.) | |
HasExpressions | Gets a value that indicates whether the specified Sequence has expressions. | |
ID | Returns the ID, which is a GUID, of the DtsContainer. The value is read-only. (Производный от DtsContainer.) | |
IsDefaultLocaleID | A Boolean that indicates whether the container uses the default locale. This property is read-only. (Производный от DtsContainer.) | |
IsolationLevel | Gets or sets the isolation level of the transaction in the DtsContainer object. (Производный от DtsContainer.) | |
LocaleID | Gets or sets an Integer that indicates the Microsoft Win32® localeID to use when the DtsContainer object is executed. (Производный от DtsContainer.) | |
LogEntryInfos | Returns a LogEntryInfos object. This property is read-only. (Производный от DtsContainer.) | |
LoggingMode | Gets or sets a valid value from the DTSLoggingMode enumeration that indicates the logging mode of the container. (Производный от DtsContainer.) | |
LoggingOptions | Returns an object that contains properties that indicates the filtering and logging resource for containers. This property is read-only. (Производный от DtsContainer.) | |
MaximumErrorCount | Gets or sets an Integer value that indicates the maximum number of errors that can occur before the DtsContainer object stops running. (Производный от DtsContainer.) | |
Name | Gets or sets the name of the DtsContainer. (Производный от DtsContainer.) | |
Parent | Returns the parent container. The value is read-only. (Производный от DtsContainer.) | |
PrecedenceConstraints | Returns a collection of PrecedenceConstraint objects that describe the precedence constraints that link container-level containers and tasks into an ordered control flow | |
Properties | Returns a collection of DtsProperty objects that contain properties relating to the sequence container. | |
Site | Инфраструктура. Gets or sets the site for the container. (Производный от DtsContainer.) | |
StartTime | Returns the time that the container began execution. This property is read-only. (Производный от DtsContainer.) | |
StopTime | Returns the time that the container ended execution. This property is read-only. (Производный от DtsContainer.) | |
SuspendRequired | Gets or sets a Boolean that indicates if tasks should suspend when they encounter a breakpoint. This value is set by the runtime engine for tasks and containers when a breakpoint is encountered. (Производный от DtsContainer.) | |
TransactionOption | Gets or sets a DTSTransactionOption enumeration value that indicates whether the container participates in transactions. (Производный от DtsContainer.) | |
VariableDispenser | Returns a VariableDispenser object so variables associated with the container can be locked. (Производный от DtsContainer.) | |
Variables | Returns a collection that contains the variables associated with this container. This property is read-only. (Производный от DtsContainer.) |
В начало
Методы
Имя | Описание | |
---|---|---|
AcceptBreakpointManager | This method is called by the run-time engine when a task or container is created, and passes it a BreakpointManager manager to allow the task to create, remove, and check the status of breakpoints. This method is called by the runtime and is not used in code. (Производный от DtsContainer.) | |
Dispose | Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources. (Производный от DtsContainer.) | |
Equals | Determines whether two object instances are equal. (Производный от DtsObject.) | |
Execute | Runs the application, container, or package as part of a package workflow. (Производный от DtsContainer.) | |
GetExecutionPath | Returns the execution path of the current sequence. | |
GetExpression | Returns a String that contains the expression for the specified property. Null means no expression is assigned. | |
GetHashCode | Returns the hash code for this instance. (Производный от DtsObject.) | |
GetPackagePath | Returns the path of the package that the sequence container is a part of. | |
GetType | (Производный от Object.) | |
LoadFromXML | This method is not callable by your application code. To load a package saved as .xml, use the Application.LoadPackage method. (Производный от DtsContainer.) | |
ResumeExecution | Resumes execution of the task after pausing. The task or container is resumed by the runtime engine. (Производный от DtsContainer.) | |
SaveToXML | This method is not callable by your application code. To save a package as .xml, use the Application.SaveToXml method. (Производный от DtsContainer.) | |
SetExpression | Assigns the specified expression to the property. Specify nullпустая ссылка (Nothing в Visual Basic) to remove an existing expression from the property. | |
SuspendExecution | Called when the executable needs to suspend. This method is called by the runtime engine. (Производный от DtsContainer.) | |
ToString | (Производный от Object.) | |
Validate | Allows the container to determine if it contains invalid settings that will prevent it from executing successfully. (Производный от DtsContainer.) |
В начало
События
Имя | Описание | |
---|---|---|
Disposed | Adds an event handler to listen to the Disposed event on the component. (Производный от DtsContainer.) |
В начало
Поля
Имя | Описание | |
---|---|---|
m_executable | Инфраструктура. The executable. (Производный от Executable.) |
В начало
Замечания
This class inherits from the following class and interfaces:
For more information about the Sequence container, see Контейнер последовательности and Контейнер последовательности.
Безопасность многопоточности
Любые открытые статический (Shared в Visual Basic) элементы этого типа потокобезопасны. Потокобезопасность с элементами экземпляров не гарантируется.