TryCatch 類別

定義

包含由例外狀況處理區塊中的工作流程執行階段所執行的活動。Contains activities to be executed by the workflow runtime in an exception handling block.

public ref class TryCatch sealed : System::Activities::NativeActivity
public sealed class TryCatch : System.Activities.NativeActivity
type TryCatch = class
    inherit NativeActivity
Public NotInheritable Class TryCatch
Inherits NativeActivity
繼承

範例

下列程式碼範例將示範如何建立 TransactionScope 活動。The following code sample demonstrates creating a TransactionScope activity. 這個範例是來自 服務範例中 TransactionScope 的嵌套This example is from the Nesting of TransactionScope within a service sample.

備註

注意

Finally TryCatch 如果未處理的例外狀況傳播超過界限,則為子系之活動的活動成員 TransactionScope 將不會執行 TransactionScopeThe Finally activity member of a TryCatch activity that is the child of a TransactionScope will not execute if an unhandled exception propagates past the TransactionScope boundary.

建構函式

TryCatch()

建立 TryCatch() 類別的新執行個體。Creates a new instance of the TryCatch() class.

屬性

CacheId

取得工作流程定義範圍內的唯一快取識別碼。Gets the identifier of the cache that is unique within the scope of the workflow definition.

(繼承來源 Activity)
CanInduceIdle

取得或設定值,這個值指出此活動是否會造成工作流程變為閒置。Gets or sets a value that indicates whether the activity can cause the workflow to become idle.

(繼承來源 NativeActivity)
Catches

Catch 活動擲回例外狀況時,要檢查的 Try 項目集合。The collection of Catch elements to be checked when the Try activity throws an exception.

Constraints

取得 Constraint 活動的集合,這些活動可以設定為提供 Activity 的驗證。Gets a collection of Constraint activities that can be configured to provide validation for the Activity.

(繼承來源 Activity)
DisplayName

取得或設定選擇性的易記名稱,這個名稱會用於偵錯、驗證、例外狀況處理及追蹤。Gets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking.

(繼承來源 Activity)
Finally

TryCatches 集合中的任何必要活動完成執行時,要執行的活動。The activity to be executed when the Try and any necessary activities in the Catches collection complete execution.

Id

取得工作流程定義範圍內的唯一識別碼。Gets an identifier that is unique in the scope of the workflow definition.

(繼承來源 Activity)
Implementation

活動的執行邏輯。The execution logic of the activity.

(繼承來源 NativeActivity)
ImplementationVersion

取得或設定活動的實作版本。Gets or sets the implementation version of the activity.

(繼承來源 NativeActivity)
Try

TryCatch 執行時,首先執行的活動。The activity first executed when the TryCatch executes.

Variables

包含的變數集合。The collection of contained variables.

方法

Abort(NativeActivityAbortContext)

在衍生類別中實作時,會採取動作以回應中止的活動。When implemented in a derived class, takes actions in response to the activity being aborted.

(繼承來源 NativeActivity)
CacheMetadata(ActivityMetadata)

未實作。Not implemented. 請改用 CacheMetadata(NativeActivityMetadata) 方法。Use the CacheMetadata(NativeActivityMetadata) method instead.

(繼承來源 NativeActivity)
CacheMetadata(NativeActivityMetadata)

建立並驗證活動引數、變數、子活動和活動委派的描述。Creates and validates a description of the activity's arguments, variables, child activities, and activity delegates.

(繼承來源 NativeActivity)
Cancel(NativeActivityContext)

在衍生類別中實作時,執行邏輯以便在非失誤性的狀況下及早完成活動。When implemented in a derived class, runs logic to cause graceful early completion of the activity.

(繼承來源 NativeActivity)
Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(繼承來源 Object)
Execute(NativeActivityContext)

在衍生類別中實作時,執行活動的執行邏輯。When implemented in a derived class, runs the activity's execution logic.

(繼承來源 NativeActivity)
GetHashCode()

做為預設雜湊函式。Serves as the default hash function.

(繼承來源 Object)
GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(繼承來源 Object)
MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(繼承來源 Object)
OnCreateDynamicUpdateMap(NativeActivityUpdateMapMetadata, Activity)

建立動態更新的對應時引發事件。Raises an event when creating a map for the dynamic update.

(繼承來源 NativeActivity)
OnCreateDynamicUpdateMap(UpdateMapMetadata, Activity)

建立動態更新的對應時引發事件。Raises an event when creating a map for the dynamic update.

(繼承來源 NativeActivity)
ShouldSerializeDisplayName()

指出是否應序列化 DisplayName 屬性。Indicates whether the DisplayName property should be serialized.

(繼承來源 Activity)
ToString()

傳回包含 的 和 的 。Returns a String that contains the Id and DisplayName of the Activity.

(繼承來源 Activity)
UpdateInstance(NativeActivityUpdateContext)

更新 NativeActivity 的執行個體。Updates the instance of NativeActivity.

(繼承來源 NativeActivity)

適用於