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TryCatch Class

.NET Framework 4.6 and 4.5

Contains activities to be executed by the workflow runtime in an exception handling block.

Namespace:  System.Activities.Statements
Assembly:  System.Activities (in System.Activities.dll)

public sealed class TryCatch : NativeActivity

The TryCatch type exposes the following members.

Public methodTryCatchCreates a new instance of the TryCatch class.

Protected propertyCacheIdGets the identifier of the cache that is unique within the scope of the workflow definition. (Inherited from Activity.)
Public propertyCatchesThe collection of Catch elements to be checked when the Try activity throws an exception.
Public propertyDisplayNameGets or sets an optional friendly name that is used for debugging, validation, exception handling, and tracking. (Inherited from Activity.)
Public propertyFinallyThe activity to be executed when the Try and any necessary activities in the Catches collection complete execution.
Public propertyIdGets an identifier that is unique in the scope of the workflow definition. (Inherited from Activity.)
Protected propertyImplementationVersionGets or sets the implementation version of the activity. (Inherited from NativeActivity.)
Public propertyTryThe activity first executed when the TryCatch executes.
Public propertyVariablesThe collection of contained variables.

Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodShouldSerializeDisplayNameIndicates whether the DisplayName property should be serialized. (Inherited from Activity.)
Public methodToStringReturns a String that contains the Id and DisplayName of the Activity. (Inherited from Activity.)


The 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.

The following code sample demonstrates creating a TransactionScope activity. This example is from the Nesting of TransactionScope within a service sample.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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