| QueryableExtensionContainsAsyncTSource Method (IQueryableTSource, TSource) | 
            Async variant of Queryable.Contains
            
 
Namespace: SD.LLBLGen.Pro.LinqSupportClassesAssembly: SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.0.0.0 (5.0.0)
Syntaxpublic static Task<bool> ContainsAsync<TSource>(
	this IQueryable<TSource> source,
	TSource item
)
<ExtensionAttribute>
Public Shared Function ContainsAsync(Of TSource) ( 
	source As IQueryable(Of TSource),
	item As TSource
) As Task(Of Boolean)
Parameters
- source
 - Type: System.LinqIQueryableTSource
The source. - item
 - Type: TSource
The item. 
Type Parameters
- TSource
 - The type of the source.
 
Return Value
Type: 
TaskBooleanUsage 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