CollectionViewSource.DeferRefresh Method

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

Enters a defer cycle that you can use to merge changes to the view and delay automatic refresh.

Namespace:  System.Windows.Data
Assembly:  System.Windows (in System.Windows.dll)


Public Function DeferRefresh As IDisposable
public IDisposable DeferRefresh()

Return Value

Type: System.IDisposable
An IDisposable object that you can use to dispose of the calling object.


Call this method before making multiple changes to the ICollectionView properties of the View property value. These changes will not be validated until Dispose is called on the DeferRefresh return value. Dispose will throw an InvalidOperationException If the View has inconsistent sorting, filtering, and grouping settings. For more information, see ISupportInitialize.EndInit.

Version Information


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0


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