GroupStyle Class
Defines how you want the group to look at each level.
Assembly: PresentationFramework (in PresentationFramework.dll)
| Name | Description | |
|---|---|---|
![]() | GroupStyle() | Initializes a new instance of the GroupStyle class. |
| Name | Description | |
|---|---|---|
![]() | AlternationCount | Gets or sets the number of alternating GroupItem objects. |
![]() | ContainerStyle | Gets or sets the style that is applied to the GroupItem generated for each item. |
![]() | ContainerStyleSelector | Enables the application writer to provide custom selection logic for a style to apply to each generated GroupItem. |
![]() ![]() | Default | Gets the default style of the group. |
![]() | HeaderStringFormat | Gets or sets a composite string that specifies how to format the header if it is displayed as a string. |
![]() | HeaderTemplate | Gets or sets the template that is used to display the group header. |
![]() | HeaderTemplateSelector | Enables the application writer to provide custom selection logic for a template that is used to display the group header. |
![]() | HidesIfEmpty | Gets or sets a value that indicates whether items corresponding to empty groups should be displayed. |
![]() | Panel | Gets or sets a template that creates the panel used to layout the items. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | MemberwiseClone() | |
![]() | OnPropertyChanged(PropertyChangedEventArgs^) | Raises the PropertyChanged event using the provided arguments. |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() ![]() | DefaultGroupPanel | Identifies the default ItemsPanelTemplate that creates the panel used to layout the items. |
| Name | Description | |
|---|---|---|
![]() | PropertyChanged | Occurs when a property value changes. |
| Name | Description | |
|---|---|---|
![]() ![]() | INotifyPropertyChanged::PropertyChanged | Occurs when a property value changes. |
The following examples show an ItemsControl that is bound to an XmlDataProvider and the code-behind content that contains the logic to add and remove grouping. When the check box is checked, the content of the ItemsControl is grouped by the Type attribute.
Each group is of type CollectionViewGroup. The GroupStyle HeaderTemplate is specified so that it appears as a TextBlock that displays the Name of each the group. In this case, the Name is either Work or Home.
<Window x:Class="GroupingSample.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Grouping Sample" Width="220" Height="550"> <StackPanel> <StackPanel.Resources> <XmlDataProvider x:Key="myTasks" XPath="Tasks/Task"> <x:XData> <Tasks xmlns=""> <Task Name="Groceries" Priority="2" Type="Home"> <Description>Pick up Groceries and Detergent</Description> </Task> <Task Name="Laundry" Priority="2" Type="Home"> <Description>Do Laundry</Description> </Task> <Task Name="Email" Priority="1" Type="Work"> <Description>Email Clients</Description> </Task> <Task Name="Clean" Priority="3" Type="Work"> <Description>Clean my office</Description> </Task> <Task Name="Dinner" Priority="1" Type="Home"> <Description>Get ready for family reunion</Description> </Task> <Task Name="Proposals" Priority="2" Type="Work"> <Description>Review new budget proposals</Description> </Task> </Tasks> </x:XData> </XmlDataProvider> </StackPanel.Resources> <TextBlock Margin="12,5,5,0" FontSize="20" Text="My Task List"/> <CheckBox Margin="10,5,5,10" Checked="AddGrouping" Unchecked="RemoveGrouping">Group by task type</CheckBox> <ItemsControl Margin="10" Name="myItemsControl" ItemsSource="{Binding Source={StaticResource myTasks}}"> <ItemsControl.ItemTemplate> <DataTemplate> <DataTemplate.Resources> <Style TargetType="TextBlock"> <Setter Property="FontSize" Value="18"/> <Setter Property="HorizontalAlignment" Value="Center"/> </Style> </DataTemplate.Resources> <Grid> <Ellipse Fill="Silver"/> <StackPanel> <TextBlock Margin="3,3,3,0" Text="{Binding XPath=@Name}"/> <TextBlock Margin="3,0,3,7" Text="{Binding XPath=@Priority}"/> </StackPanel> </Grid> </DataTemplate> </ItemsControl.ItemTemplate> <ItemsControl.ItemContainerStyle> <Style> <Setter Property="Control.Width" Value="100"/> <Setter Property="Control.Margin" Value="5"/> </Style> </ItemsControl.ItemContainerStyle> <ItemsControl.GroupStyle> <GroupStyle> <GroupStyle.HeaderTemplate> <DataTemplate> <TextBlock FontWeight="Bold" FontSize="15" Text="{Binding Path=Name}"/> </DataTemplate> </GroupStyle.HeaderTemplate> </GroupStyle> </ItemsControl.GroupStyle> </ItemsControl> </StackPanel> </Window>
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.







