Я пытаюсь добавить функциональность к выбранному ListViewItems. Где, если выбран элемент, он должен попасть в область просмотра / рядом с ним (удаляя правую границу ListViews).
Например: этот выбранный элемент ведет себя как следует, но правая граница не должна быть там. 
Вот как это должно выглядеть
Вот моя кодировка:
Вид:
<ListView x:Name="myListView" HorizontalAlignment="Left" Height="352" Margin="23,19,0,0" VerticalAlignment="Top" Width="432" Style="{DynamicResource ListViewStyle1}" ItemContainerStyle="{DynamicResource ListViewItemStyle1}">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding Name}" Padding="5 5 5 5"/>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.GroupStyle>
<GroupStyle ContainerStyle="{StaticResource GroupCustomStyle1}">
<GroupStyle.HeaderTemplate>
<DataTemplate/>
</GroupStyle.HeaderTemplate>
</GroupStyle>
</ListView.GroupStyle>
</ListView>
ViewModel:
public partial class MainWindow : Window
{
private List<Employee> employees;
public MainWindow()
{
InitializeComponent();
employees = new List<Employee>();
employees.Add(new Employee { Id = "Header One", Name = "First" });
employees.Add(new Employee { Id = "Header Two", Name = "Second" });
employees.Add(new Employee { Id = "Header Three", Name = "Third" });
employees.Add(new Employee { Id = "Header Four", Name = "Fourth" });
employees.Add(new Employee { Id = "Header Five", Name = "Fifth" });
this.DataContext = this;
myListView.ItemsSource = employees;
CollectionView view = (CollectionView)CollectionViewSource.GetDefaultView(myListView.ItemsSource);
PropertyGroupDescription groupDescription = new PropertyGroupDescription("Id");
view.GroupDescriptions.Add(groupDescription);
}
public List<Employee> Employees
{
get
{
return employees;
}
}
}
Стайлинг:
<Application.Resources>
<Style x:Key="ListViewStyle1" TargetType="{x:Type ListView}">
<Setter Property="Background" Value="LightBlue"/>
<Setter Property="BorderBrush" Value="Black"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Foreground" Value="Black"/>
<Setter Property="Padding" Value="0 5 0 0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListView}">
<Border x:Name="Bd" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Padding="0" SnapsToDevicePixels="true">
<ScrollViewer Focusable="false">
<ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</ScrollViewer>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="Bd" Value="Red"/>
<Setter Property="BorderBrush" TargetName="Bd" Value="Black"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsGrouping" Value="true"/>
<Condition Property="VirtualizingPanel.IsVirtualizingWhenGrouping" Value="false"/>
</MultiTrigger.Conditions>
<Setter Property="ScrollViewer.CanContentScroll" Value="false"/>
</MultiTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="ListViewItemStyle1" TargetType="{x:Type ListViewItem}">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="HorizontalContentAlignment" Value="{Binding HorizontalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
<Setter Property="VerticalContentAlignment" Value="{Binding VerticalContentAlignment, RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListViewItem}">
<Border x:Name="Bd" SnapsToDevicePixels="true" Background="{TemplateBinding Background}" BorderBrush="Black" BorderThickness="1">
<ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="true">
<Setter Property="Background" Value="White"/>
<Setter Property="BorderBrush" Value="Black"/>
<Setter Property="BorderThickness" Value="0 1 0 1"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="true"/>
<Condition Property="Selector.IsSelectionActive" Value="false"/>
</MultiTrigger.Conditions>
<Setter Property="Background" TargetName="Bd" Value="Gray"/>
<Setter Property="Foreground" Value="Pink"/>
</MultiTrigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Foreground" Value="Aqua"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="BorderBrush" Value="Black"/>
<Setter Property="BorderThickness" Value="0 1 0 1"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="GroupCustomStyle1" TargetType="{x:Type GroupItem}">
<Setter Property="Margin" Value="0 8 0 0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupItem}">
<StackPanel>
<DockPanel Margin="0,0,0,2">
<Border BorderBrush="Black" BorderThickness="0, 0, 0, 1" Width="400" HorizontalAlignment="Center" Padding="5 3 3 5">
<TextBlock Text="{Binding Name}" VerticalAlignment="Center" HorizontalAlignment="Left" Foreground="Black"/>
</Border>
</DockPanel>
<ItemsPresenter />
</StackPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Application.Resources>
Я не знаю, как лучше всего это сделать, но я почти уверен, что это приведет к грязному взлому.