protected override void Execute(NativeActivityContext context) { if (this.Request == null) { throw FxTrace.Exception.AsError(new ValidationException(SR2.TransactedReceiveScopeRequiresReceive(this.DisplayName))); } // we have to do this in code since we aren't fully modeled (in order for // dynamic update to work correctly) RuntimeTransactionHandle handleInstance = this.transactionHandle.Get(context); Fx.Assert(handleInstance != null, "RuntimeTransactionHandle is null"); //This is used by InternalReceiveMessage to update the InitiatingTransaction so that we can later call Commit/Complete on it context.Properties.Add(TransactedReceiveData.TransactedReceiveDataExecutionPropertyName, new TransactedReceiveData()); RuntimeTransactionHandle foundHandle = context.Properties.Find(handleInstance.ExecutionPropertyName) as RuntimeTransactionHandle; if (foundHandle == null) { context.Properties.Add(handleInstance.ExecutionPropertyName, handleInstance); } else { //nested case if (foundHandle.SuppressTransaction) { throw FxTrace.Exception.AsError(new InvalidOperationException(SR2.CannotNestTransactedReceiveScopeWhenAmbientHandleIsSuppressed(this.DisplayName))); } // Verify if TRS is root and if the foundHandle is not from the parent HandleScope<RTH> if (foundHandle.GetCurrentTransaction(context) != null) { handleInstance = foundHandle; this.isNested.Set(context, true); } } context.ScheduleActivity(this.Request, new CompletionCallback(OnReceiveCompleted)); }