Exists<TTarget>(Predicate<TTarget>) Method

In This Topic

Determines whether the List contains elements that match the conditions defined by the specified predicate.

Syntax

'Declaration
 
Public Overloads Function Exists(Of TTarget As T)( _
   ByVal match As Predicate(Of TTarget) _
) As Boolean

'Usage
 
Dim instance As CollectionBase(Of T)
Dim match As Predicate(Of TTarget)
Dim value As Boolean
 
value = instance.Exists(Of TTarget)(match)

public bool Exists<TTarget>( 
   Predicate<TTarget> match
)
where TTarget: T

match: The Predicate delegate that defines the conditions of the elements to search for.

true if the List contains one or more elements that match the conditions defined by the specified predicate; otherwise, false.

Exceptions

Exception	Description
System.ArgumentNullException	match is null.