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AsyncAdapterExtensionMethodsFetchFirstAsyncTEntity Method (IDataAccessAdapter, EntityQueryTEntity)
Async variant of FetchFirstTEntity(IDataAccessAdapter, EntityQueryTEntity). Fetches the first entity of the set returned by the query and returns that entity, if any, otherwise null.

Namespace:  SD.LLBLGen.Pro.QuerySpec.Adapter
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 static Task<TEntity> FetchFirstAsync<TEntity>(
	this IDataAccessAdapter adapter,
	EntityQuery<TEntity> query
)
where TEntity : EntityBase2, IEntity2

Parameters

adapter
Type: SD.LLBLGen.Pro.ORMSupportClassesIDataAccessAdapter
The adapter.
query
Type: SD.LLBLGen.Pro.QuerySpecEntityQueryTEntity
The query.

Type Parameters

TEntity
The type of the entity.

Return Value

Type: TaskTEntity
the first entity in the resultset, or null if the resultset is empty.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IDataAccessAdapter. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
See Also