Subindex<TKey>(Subindex<T,TKey>) Method

Used to apply subindex search to the result of a search operation.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Overridable Function Subindex(Of TKey)( _
   ByVal definition As Subindex(Of T,TKey) _
) As IIndexScanner(Of T,TKey)

public virtual IIndexScanner<T,TKey> Subindex<TKey>( 
   Subindex<T,TKey> definition
)

Parameters

definition: Subindex to use for narrowing the search.

Type Parameters

TKey: Type of the subindex key.

Return Value

An IIndexScanner<T,TKey> 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(subindexByContactTitle).Find("Owner");

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

IndexQuery<T> Class
IndexQuery<T> Members
Overload List