title	IAppHostPropertySchema Interface
description	Learn how the IAppHostPropertySchema interface provides access to the attributes that define the schema for a property.
ms.date	10/07/2016
ms.assetid	f38eaa29-b0c9-8df1-7dea-46fa9cba9771

IAppHostPropertySchema Interface

Provides access to the attributes that define the schema for a property.

Syntax

IAppHostPropertySchema : public IUnknown

The following table lists the methods exposed by the IAppHostPropertySchema interface.

Method	Description
GetMetadata	Gets metadata values from the schema.

The following table lists the properties exposed by the IAppHostPropertySchema interface.

Property	Description
DefaultValue	Gets the value that the IAppHostProperty::Value property returns when a value is not explicitly set.
IsCaseSensitive	Gets a value that indicates whether the property value is case-sensitive.
IsCombinedKey	Determines whether a property is part of a multiple-attribute key for a collection.
IsExpanded	Determines whether environment variables in a property value should be expanded.
IsRequired	Determines whether a value must be defined for a property.
IsUniqueKey	Determines whether a property value is a unique key for a collection.
Name	Gets the name of the current schema.
Type	Gets the data type of the current schema.
ValidationParameter	Provides attribute-validation parameter information for the current property.
ValidationType	Describes the type of validation that will be performed for the current property.

IAppHostPropertySchema

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