C1.LiveLinq.Indexing.Search.IndexQuery-1.Subindex
Subindex Method
Subindex<TKey>(Subindex<T, TKey>)
Used to apply subindex search to the result of a search operation.
Declaration
public virtual IIndexScanner<T, TKey> Subindex<TKey>(Subindex<T, TKey> definition)Parameters
| Type | Name | Description |
|---|---|---|
| Subindex<T, TKey> | definition | Subindex to use for narrowing the search. |
Returns
| Type | Description |
|---|---|
| IIndexScanner<T, TKey> | An IIndexScanner<T, TKey> collection indexed by the subindex that can be used to perform search operations narrowing the collection. |
Type Parameters
| Name | Description |
|---|---|
| TKey | Type of the subindex key. |
Remarks
A subindex can be used to further narrow the result of a search operation, if the corresponding subindex exists in the index or subindex used to perform that search operation. For example,
var idxByCity = customers.Indexes(c => c.City);
var subindexByContactTitle = idxByCity.Subindexes(c => c.ContactTitle);
var ownersInLondon = idxByCity.Find("London").Subindex(subindexByContactTitle).Find("Owner");Subindex(Subindex<T>)
Used to apply subindex search to the result of a search operation.
Declaration
public IIndexScanner<T> Subindex(Subindex<T> definition)Parameters
| Type | Name | Description |
|---|---|---|
| Subindex<T> | definition | Subindex to use for narrowing the search. |
Returns
| Type | Description |
|---|---|
| IIndexScanner<T> | An IIndexScanner<T> collection indexed by the subindex that can be used to perform search operations narrowing the collection. |
Remarks
A subindex can be used to further narrow the result of a search operation, if the corresponding subindex exists in the index or subindex used to perform that search operation. For example,
var idxByCity = customers.Indexes(c => c.City);
var subindexByContactTitle = idxByCity.Subindexes(c => c.ContactTitle);
var ownersInLondon = idxByCity.Find("London").Subindex<string>(subindexByContactTitle).Find("Owner");