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dotnet
System.
Linq
Namespace
ILookup`2
Interface
Version
Select version
2.1.0.0
Compare versions
2.0.0.0 ⟶ 2.1.0.0
Added in
Version 2.1.0.0
2.0.0.0
2.1.0.0
ILookup`2
Interface
latest version
Defines an indexer, size property, and Boolean search method for data structures that map keys to
IEnumerable`1
sequences of values.
TKey
The type of the keys in the
ILookup`2
.
TElement
The type of the elements in the
IEnumerable`1
sequences that make up the values in the
ILookup`2
.
IEnumerable
System.
Collections.
Generic.
IEnumerable<System.
Linq.
IGrouping<`0,
`1>>
IEnumerable
System.
Collections.
Generic.
IEnumerable<System.
Linq.
IGrouping<`0,
`1>>
Default
Member
Attribute
Default
Member
Attribute
On This Page
Overview
Methods
Properties
Assemblies
Issues
Methods
Contains(`0)
Determines whether a specified key exists in the
ILookup`2
.
Properties
Count
Gets the number of key/value collection pairs in the
ILookup`2
.
Item
Assemblies
netstandard
System.
Linq
Issues
Mentions on GitHub
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