C1.LiveLinq.Indexing.Search.IIndexScanner-2.Join
Join Method
Join<T2, TResult>(IEnumerable<T2>, Func<T2, TKey>, Func<T, T2, TResult>, JoinOperator)
Correlates the items of this indexed collection with the items of another sequence and returns the combined items with matching keys.
Declaration
IEnumerable<TResult> Join<T2, TResult>(IEnumerable<T2> source, Func<T2, TKey> keySelector, Func<T, T2, TResult> resultSelector, JoinOperator op)Parameters
| Type | Name | Description |
|---|---|---|
| IEnumerable<T2> | source | The second sequence to join to this collection. |
| Func<T2, TKey> | keySelector | A function to extract from an item of the second sequence the value to match against this collection's key value. |
| Func<T, T2, TResult> | resultSelector | A function to create a result element from two matching elements. |
| JoinOperator | op | A comparison operator to match elements. |
Returns
| Type | Description |
|---|---|
| IEnumerable<TResult> | Enumeration of objects obtained by applying the result selector to pairs of joined elements of the two collections. |
Type Parameters
| Name | Description |
|---|---|
| T2 | The type of the elements of the second sequence. |
| TResult | The type of the result elements. |
Join<T2, TResult>(IIndexScanner<T2, TKey>, Func<T, T2, TResult>, JoinOperator)
Correlates the items of this indexed collection with the items of another indexed collection and returns the combined items with matching keys.
Declaration
IEnumerable<TResult> Join<T2, TResult>(IIndexScanner<T2, TKey> source, Func<T, T2, TResult> resultSelector, JoinOperator op)Parameters
| Type | Name | Description |
|---|---|---|
| IIndexScanner<T2, TKey> | source | The second indexed collection to join to this collection. |
| Func<T, T2, TResult> | resultSelector | A function to create a result element from two matching elements. |
| JoinOperator | op | A comparison operator to match elements. |
Returns
| Type | Description |
|---|---|
| IEnumerable<TResult> | Enumeration of objects obtained by applying the result selector to pairs of joined elements of the two collections. |
Type Parameters
| Name | Description |
|---|---|
| T2 | The type of the elements of the second collection. |
| TResult | The type of the result elements. |
Remarks
Matching of two elements is performed by matching their keys.