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QueryableExtensionMethodsFirstOrDefaultAsyncTSource Method (IQueryableTSource, ExpressionFuncTSource, Boolean, TSource)

Async variant of Queryable.FirstOrDefault

Namespace:  SD.LLBLGen.Pro.LinqSupportClasses
Assembly:  SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.9.0.0 (5.9.0)
Syntax
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public static Task<TSource> FirstOrDefaultAsync<TSource>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, bool>> predicate,
	TSource defaultValue
)

Parameters

source
Type: System.LinqIQueryableTSource
The source.
predicate
Type: System.Linq.ExpressionsExpressionFuncTSource, Boolean
The predicate.
defaultValue
Type: TSource
The default value to return if the sequence is empty

Type Parameters

TSource
The type of the source.

Return Value

Type: TaskTSource

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableTSource. 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