'Declaration Public Overloads Function GroupBy(Of TKey)( _ ByVal keySelector As Expression(Of Func(Of T,TKey)) _ ) As View(Of GroupView(Of TKey,T))
public View<GroupView<TKey,T>> GroupBy<TKey>( Expression<Func<T,TKey>> keySelector )
Parameters
- keySelector
- A function to extract the key for each element.
Type Parameters
- TKey
- The type of the key returned by keySelector.
Return Value
A view containing elements of type GroupView<TKey,TElement> each containing a key value and a view of the elements having that key value.