CollectionViewSource.SortDescriptions Property
Gets or sets a collection of SortDescription objects that describes how the items in the collection are sorted in the view.
Namespace: System.Windows.Data
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
<object> <object.SortDescriptions> oneOrMoreSortDescriptions </object.SortDescriptions> </object>
XAML Values
Property Value
Type: System.ComponentModel.SortDescriptionCollectionA collection of SortDescription objects that describes how the items in the collection are sorted in the view.
This example shows how to create a view of a data collection in Extensible Application Markup Language (XAML). Views allow for the functionalities of grouping, sorting, filtering, and the notion of a current item.
In the following example, the static resource named places is defined as a collection of Place objects, in which each Place object is consisted of a city name and the state. The prefix src is mapped to the namespace where the data source Places is defined. The prefix scm maps to "clr-namespace:System.ComponentModel;assembly=WindowsBase" and dat maps to "clr-namespace:System.Windows.Data;assembly=PresentationFramework".
The following example creates a view of the data collection that is sorted by the city name and grouped by the state.
<Window.Resources> <src:Places x:Key="places"/> <CollectionViewSource Source="{StaticResource places}" x:Key="cvs"> <CollectionViewSource.SortDescriptions> <scm:SortDescription PropertyName="CityName"/> </CollectionViewSource.SortDescriptions> <CollectionViewSource.GroupDescriptions> <dat:PropertyGroupDescription PropertyName="State"/> </CollectionViewSource.GroupDescriptions> </CollectionViewSource>
The view can then be a binding source, as in the following example:
<ListBox ItemsSource="{Binding Source={StaticResource cvs}}" DisplayMemberPath="CityName" Name="lb"> <ListBox.GroupStyle> <x:Static Member="GroupStyle.Default"/> </ListBox.GroupStyle> </ListBox>
For bindings to XML data defined in an XmlDataProvider resource, precede the XML name with an @ symbol.
<XmlDataProvider x:Key="myTasks" XPath="Tasks/Task"> <x:XData> <Tasks xmlns=""> <Task Name="Groceries" Priority="2" Type="Home">
<CollectionViewSource x:Key="mySortedTasks" Source="{StaticResource myTasks}"> <CollectionViewSource.SortDescriptions> <scm:SortDescription PropertyName="@Priority" /> </CollectionViewSource.SortDescriptions> <CollectionViewSource.GroupDescriptions> <dat:PropertyGroupDescription PropertyName="@Priority" /> </CollectionViewSource.GroupDescriptions> </CollectionViewSource>
More Code
| How to: Sort Data in a View | This example describes how to sort data in a view. |
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
