Artigo
11/18/2011

DataServiceCollection<T> Constructor (IEnumerable<T>, TrackingMode)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Creates a new instance of the DataServiceCollection<T> class based on query execution and with the specified tracking mode.

Namespace: System.Data.Services.Client
Assembly: System.Data.Services.Client (in System.Data.Services.Client.dll)

Syntax

'Declaration
Public Sub New ( _
    items As IEnumerable(Of T), _
    trackingMode As TrackingMode _
)

public DataServiceCollection(
    IEnumerable<T> items,
    TrackingMode trackingMode
)

Parameters

items
Type: System.Collections.Generic.IEnumerable<T>
A DataServiceQuery<TElement> or LINQ query that returns an IEnumerable<T> collection of objects that are used to initialize the collection.

trackingMode
Type: System.Data.Services.Client.TrackingMode
A TrackingMode value that indicated whether or not changes made to items in the collection are automatically tracked.

Remarks

By default, automatic change tracking is enabled for a DataServiceCollection<T>. Use this class constructor and supply a value of None for trackingMode to create an instance of DataServiceCollection<T> that uses manual change tracking. When you use manual tracking, you must implement INotifyPropertyChanged and INotifyCollectionChanged and handle the raise events to manually report changes to the DataServiceContext.

The IEnumerable<T> collection of objects supplied for items is usually a query that returns the items in the collection. However, any IEnumerable<T> collection of the correct type can be supplied.

Version Information

Silverlight

Supported in: 5, 4

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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