IEnumerableExtensions.Distinct<TSource,TKeyType> Method
Definition
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Returns a distinct collection based on a key.
public static System.Collections.Generic.IEnumerable<TSource> Distinct<TSource,TKeyType> (this System.Collections.Generic.IEnumerable<TSource> source, Func<TSource,TKeyType> keySelector, System.Collections.Generic.IEqualityComparer<TKeyType> comparer = default);static member Distinct : seq<'Source> * Func<'Source, 'KeyType> * System.Collections.Generic.IEqualityComparer<'KeyType> -> seq<'Source><Extension()>
Public Iterator Function Distinct(Of TSource, TKeyType) (source As IEnumerable(Of TSource), keySelector As Func(Of TSource, TKeyType), Optional comparer As IEqualityComparer(Of TKeyType) = Nothing) As IEnumerable(Of TSource)Type Parameters
- TSource
The source type.
- TKeyType
The key type.
Parameters
- source
- IEnumerable<TSource>
The source collection.
- keySelector
- Func<TSource,TKeyType>
The key selector.
- comparer
- IEqualityComparer<TKeyType>
The comparer.
Returns
IEnumerable<TSource>