iapphostcollectionschema-doesallowduplicates-property.md

title	IAppHostCollectionSchema::DoesAllowDuplicates Property
description	The IAppHostCollectionSchema::DoesAllowDuplicates Property gets a boolean value that determines whether a collection that implements the current schema allows for duplicate keys.
ms.date	10/07/2016
ms.assetid	a57aec87-3cc3-4734-848a-9d27ccdf40db

IAppHostCollectionSchema::DoesAllowDuplicates Property

Gets a Boolean value that determines whether a collection that implements the current schema allows for duplicate keys.

Syntax

HRESULT DoesAllowDuplicates(  
   [out,  
   retval] VARIANT_BOOL* pfAllowDuplicates  
);  

Parameters

pfAllowDuplicates
A pointer to a VARIANT_BOOL. VARIANT_TRUE if duplicate names are allowed; otherwise, VARIANT_FALSE.

Return Value

An HRESULT. Possible values include, but are not limited to, those in the following table.

Value	Description
S_OK	Indicates that the operation was successful.

Requirements

Type	Description
Client	- IIS 7.0 on [!INCLUDEwinvista] - IIS 7.5 on Windows 7 - IIS 8.0 on Windows 8 - IIS 10.0 on Windows 10
Server	- IIS 7.0 on [!INCLUDEwinsrv2008] - IIS 7.5 on Windows Server 2008 R2 - IIS 8.0 on Windows Server 2012 - IIS 8.5 on Windows Server 2012 R2 - IIS 10.0 on Windows Server 2016
Product	- IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0 - [!INCLUDEiisexp75], [!INCLUDEiisexp80], [!INCLUDEiisexp100]
Header	Ahadmin.h

See Also

IAppHostCollectionSchema Interface