Want to use multi selection in WPF TreeView ?
<Style TargetType="{x:Type TreeViewItem}">
<Setter Property="BorderThickness" Value="1"></Setter>
<Style.Triggers>
<Trigger Property="c:TreeViewExtensions.IsSelected" Value="True" >
<Setter Property="BorderBrush" Value="Gray"></Setter>
</Trigger>
</Style.Triggers>
</Style>
...
<TreeView c:TreeViewExtensions.EnableMultiSelect="true"
c:TreeViewExtensions.SelectedItems="{Binding SelectedItems}"
ItemsSource="{Binding Items}"
... />
Code and sample on
my blog[
^].
