IndexAttribute Class
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Specifies an additional index on a local database table.
Inheritance Hierarchy
System.Object
System.Attribute
Microsoft.Phone.Data.Linq.Mapping.IndexAttribute
Namespace: Microsoft.Phone.Data.Linq.Mapping
Assembly: System.Data.Linq (in System.Data.Linq.dll)
Syntax
'Declaration
<AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple := True, Inherited := False)> _
Public NotInheritable Class IndexAttribute _
Inherits Attribute
[AttributeUsageAttribute(AttributeTargets.Class, AllowMultiple = true, Inherited = false)]
public sealed class IndexAttribute : Attribute
The IndexAttribute type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
.gif "Public method") .gif "Supported by Silverlight for Windows Phone") |
IndexAttribute | Initializes a new instance of the IndexAttribute class. |
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Properties
| Name | Description | |
|---|---|---|
.gif "Public property") |
Columns | Gets or sets the columns on which the index is based. |
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IsUnique | Gets 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. |
|
Name | Gets or sets the name of the index. |
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Methods
| Name | Description | |
|---|---|---|
|
Equals | Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.) |
.gif "Protected method") |
Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
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GetHashCode | Returns the hash code for this instance. (Inherited from Attribute.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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Match | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
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Remarks
For information about using a local database in your Windows Phone application, see Local Database Overview for Windows Phone.
Version Information
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.