Method Join
| MongoDB CSharp Driver API Reference (original) (raw)
Namespace
Assembly
MongoDB.Driver.dll
Join<TOuter, TInner, TKey, TResult>(IQueryable, IMongoCollection, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, TInner, TResult>>)
Correlates the elements of two sequences based on matching keys.
public static IQueryable<TResult> Join<TOuter, TInner, TKey, TResult>(this IQueryable<TOuter> outer, IMongoCollection<TInner> inner, Expression<Func<TOuter, TKey>> outerKeySelector, Expression<Func<TInner, TKey>> innerKeySelector, Expression<Func<TOuter, TInner, TResult>> resultSelector)Parameters
outer IQueryable
The first sequence to join.
inner IMongoCollection
The sequence to join to the first sequence.
outerKeySelector Expression<Func<TOuter, TKey>>
A function to extract the join key from each element of the first sequence.
innerKeySelector Expression<Func<TInner, TKey>>
A function to extract the join key from each element of the second sequence.
resultSelector Expression<Func<TOuter, TInner, TResult>>
A function to create a result element from two matching elements.
Returns
An IQueryable that has elements of type TResult obtained by performing an inner join on two sequences.
Type Parameters
TOuter
The type of the elements of the first sequence.
TInner
The type of the elements of the second sequence.
TKey
The type of the keys returned by the key selector functions.
TResult
The type of the result elements.