MoreEnumerableOrderedMergeT, TKey Method (IEnumerableT, IEnumerableT, FuncT, TKey) |
Merges two ordered sequences into one with an additional
parameter specifying the element key by which the sequences are
ordered. Where the keys equal in both sequences, the
element from the first sequence is returned in the resulting
sequence.
Namespace:
MoreLinq
Assembly:
MoreLinq (in MoreLinq.dll) Version: 2.4.0
Syntax public static IEnumerable<T> OrderedMerge<T, TKey>(
this IEnumerable<T> first,
IEnumerable<T> second,
Func<T, TKey> keySelector
)
<ExtensionAttribute>
Public Shared Function OrderedMerge(Of T, TKey) (
first As IEnumerable(Of T),
second As IEnumerable(Of T),
keySelector As Func(Of T, TKey)
) As IEnumerable(Of T)
public:
[ExtensionAttribute]
generic<typename T, typename TKey>
static IEnumerable<T>^ OrderedMerge(
IEnumerable<T>^ first,
IEnumerable<T>^ second,
Func<T, TKey>^ keySelector
)
[<ExtensionAttribute>]
static member OrderedMerge :
first : IEnumerable<'T> *
second : IEnumerable<'T> *
keySelector : Func<'T, 'TKey> -> IEnumerable<'T>
Parameters
- first
- Type: System.Collections.GenericIEnumerableT
The first input sequence. - second
- Type: System.Collections.GenericIEnumerableT
The second input sequence. - keySelector
- Type: SystemFuncT, TKey
Function to extract a key given an element.
Type Parameters
- T
- Type of elements in input and output sequences.
- TKey
- Type of keys used for merging.
Return Value
Type:
IEnumerableT
A sequence with elements from the two input sequences merged
according to a key, as in a full outer join.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerableT. 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).
Remarks
This method uses deferred execution. The behavior is undefined
if the sequences are unordered (by key) as inputs.
See Also