LLBLGen Pro v5.4 Runtime Framework Reference Manual
Namespaces
SD.LLBLGen.Pro.ORMSupportClasses Namespaces
SD.LLBLGen.Pro.ORMSupportClasses
DaoBase Class
DaoBase Methods
AddNew Method
AddNewAsync Method
CallActionStoredProcedure Method
CallActionStoredProcedureAsync Method
CallRetrievalStoredProcedure Method
CreateConnection Method
CreateDataAdapter Method
CreatePrimaryKeyFilter Method
CreatePrimaryKeyFilters Method
CreateTransaction Method
DeleteExisting Method
DeleteExistingAsync Method
DeleteMulti Method
DeleteMultiAsync Method
DetermineConnectionToUse Method
ExecuteActionQuery Method
ExecuteActionQueryAsync Method
ExecuteMultiRowDataTableRetrievalQuery Method
ExecuteMultiRowRetrievalQuery Method
ExecuteScalarQuery Method
ExecuteScalarQueryAsync Method
ExecuteSingleRowRetrievalQuery Method
ExecuteSQL Method
ExecuteSQLAsync Method
FetchExcludedFields Method
FetchExcludedFieldsAsync Method
FetchExisting Method
FetchExistingPolymorphic Method
FetchQuery Method
FetchQueryAsync Method
FetchScalarQuery Method
FetchScalarQueryAsync Method
GetAsDataReader Method
GetAsDataReaderAsync Method
GetAsProjection Method
GetAsProjectionAsync Method
GetConnectionString Method
GetDbCount Method
GetMulti Method
GetMultiAsDataTable Method
GetMultiAsync Method
GetScalar Method
HandleValueReadErrors Method
PerformExecuteSingleRowRetrievalQuery Method
PerformFetchEntityAction Method
PerformGetMultiAction Method
PerformGetMultiActionAsync Method
PerformPolymorphicEntityFetch Method
UpdateExisting Method
UpdateExistingAsync Method
UpdateMulti Method
UpdateMultiAsync Method
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DaoBaseDeleteExistingAsync Method

Async variant of DeleteExisting(IEntityFields, ITransaction, IPredicate). Deletes an entity from the persistent storage. Which entity is deleted is determined from the passed in EntityFields object.

Namespace:  SD.LLBLGen.Pro.ORMSupportClasses
Assembly:  SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.4.0.0 (5.4.0)
Syntax
Copy
public Task<bool> DeleteExistingAsync(
	IEntityFields fields,
	ITransaction containingTransaction,
	IPredicate deleteRestriction,
	CancellationToken cancellationToken
)

Parameters

fields
Type: SD.LLBLGen.Pro.ORMSupportClassesIEntityFields
The EntityField data to use for the deletion
containingTransaction
Type: SD.LLBLGen.Pro.ORMSupportClassesITransaction
A containing transaction, if caller is added to a transaction, or null if not.
deleteRestriction
Type: SD.LLBLGen.Pro.ORMSupportClassesIPredicate
Predicate expression, meant for concurrency checks in a delete query. Can be null.
cancellationToken
Type: System.ThreadingCancellationToken
The cancellation token.

Return Value

Type: TaskBoolean
true if the delete was succesful, false otherwise

Implements

IDaoDeleteExistingAsync(IEntityFields, ITransaction, IPredicate, CancellationToken)
Exceptions
ExceptionCondition
ArgumentNullExceptionfields;fields can't be null
ArgumentNullExceptionWhen fields is null
See Also