DaoBase.DeleteExistingAsync Method

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: 5.2.0.0 (5.2.17.0403)

Syntax

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public Task<bool> DeleteExistingAsync(
	IEntityFields fields,
	ITransaction containingTransaction,
	IPredicate deleteRestriction,
	CancellationToken cancellationToken
)

Public Function DeleteExistingAsync ( 
	fields As IEntityFields,
	containingTransaction As ITransaction,
	deleteRestriction As IPredicate,
	cancellationToken As CancellationToken
) As Task(Of Boolean)

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

Exception	Condition
ArgumentNullException	fields;fields can't be null
ArgumentNullException	When fields is null

Reference

DaoBase Class

SD.LLBLGen.Pro.ORMSupportClasses Namespace