IndexAttribute Class
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IndexAttribute Class

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Specifies an additional index on a local database table.


Namespace:  Microsoft.Phone.Data.Linq.Mapping
Assembly:  System.Data.Linq (in System.Data.Linq.dll)

[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = true, Inherited = false)]
public sealed class IndexAttribute : Attribute

The IndexAttribute type exposes the following members.

Public methodIndexAttributeInitializes a new instance of the IndexAttribute class.

Public propertyColumnsGets or sets the columns on which the index is based.
Public propertyIsUniqueGets or sets a value that indicates whether the index is unique, in which no two rows are permitted to have the same index key value.
Public propertyNameGets or sets the name of the index.

Public methodEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

For information about using a local database in your Windows Phone application, see Local database for Windows Phone 8.

Windows Phone OS

Supported in: 8.1, 8.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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