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WPF TreeView에 두 개의 HierarchicalDataTemplates을 지정했으며 템플릿 선택기를 사용하여 데이터 바인딩 된 개체의 형식을 기반으로 적용 할 항목을 선택했습니다. 계층 적 데이터 템플릿이 적용되고 TreeView에 예상되는 항목 이름이 표시됩니다.WPF TreeView : ItemTemplateSelector 및 ItemContainerStyle을 동시에 사용할 수 없습니다.
그러나 트리보기 항목에 대해 ItemContainerStyle을 설정하면 계층 적 데이터 템플릿이 더 이상 적용되지 않는 것처럼 보입니다. 각 트리보기 항목의 레이블은 해당 항목이있는 개체의 클래스 이름으로 설정됩니다. 하게되다. 템플릿을 적용 할 템플릿을 TreeViewItemControlTemplate으로 설정합니다.이 템플릿을 약간 수정 하겠지만 현재는 Visual Studio에서 내 보낸 수정되지 않은 템플릿을 사용하고 있습니다.
데이터 템플릿 선택
public class NodeTypeTemplateSelector : DataTemplateSelector
{
public DataTemplate Type1Template { get; set; }
public DataTemplate Type2Template { get; set; }
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
if (item == null) return base.SelectTemplate(null, container);
var layer = item as LayersItemVM;
if (layer != null)
{
switch (layer.NodeType)
{
case NodeType.Type1:
return Type1Template;
case NodeType.Type2:
return Type2Template;
default:
return base.SelectTemplate(item, container);
}
}
return base.SelectTemplate(item, container);
}
}
주 창 XAML
<Window x:Class="TreeViewSimple2.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:TreeViewSimple2"
mc:Ignorable="d"
Loaded="MainWindow_OnLoaded"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<HierarchicalDataTemplate x:Key="Type1Template">
<StackPanel>
<Label Content="{Binding Path=Name}"></Label>
</StackPanel>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate x:Key="Type2Template">
<StackPanel>
<Label Content="{Binding Path=Name}"></Label>
</StackPanel>
</HierarchicalDataTemplate>
<local:NodeTypeTemplateSelector Type1Template="{StaticResource Type1Template}" Type2Template="{StaticResource Type2Template}" x:Key="NodeTypeTemplateSelector" />
</Window.Resources>
<Grid>
<TreeView x:Name="TreeView" ItemTemplateSelector="{StaticResource NodeTypeTemplateSelector}">
<TreeView.ItemContainerStyle>
<Style TargetType="{x:Type TreeViewItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TreeViewItem}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition MinWidth="19" Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<ToggleButton x:Name="Expander" ClickMode="Press" IsChecked="{Binding IsExpanded, RelativeSource={RelativeSource TemplatedParent}}">
<ToggleButton.Style>
<Style TargetType="{x:Type ToggleButton}">
<Setter Property="Focusable" Value="False"/>
<Setter Property="Width" Value="16"/>
<Setter Property="Height" Value="16"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Border Background="Transparent" Height="16" Padding="5" Width="16">
<Path x:Name="ExpandPath" Data="M0,0 L0,6 L6,0 z" Fill="Transparent" Stroke="#FF989898">
<Path.RenderTransform>
<RotateTransform Angle="135" CenterY="3" CenterX="3"/>
</Path.RenderTransform>
</Path>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsChecked" Value="True">
<Setter Property="RenderTransform" TargetName="ExpandPath">
<Setter.Value>
<RotateTransform Angle="180" CenterY="3" CenterX="3"/>
</Setter.Value>
</Setter>
<Setter Property="Fill" TargetName="ExpandPath" Value="#FF595959"/>
<Setter Property="Stroke" TargetName="ExpandPath" Value="#FF262626"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Stroke" TargetName="ExpandPath" Value="#FF1BBBFA"/>
<Setter Property="Fill" TargetName="ExpandPath" Value="Transparent"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="True"/>
<Condition Property="IsChecked" Value="True"/>
</MultiTrigger.Conditions>
<Setter Property="Stroke" TargetName="ExpandPath" Value="#FF262626"/>
<Setter Property="Fill" TargetName="ExpandPath" Value="#FF595959"/>
</MultiTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ToggleButton.Style>
</ToggleButton>
<Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.Column="1" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="True">
<ContentPresenter x:Name="PART_Header" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" ContentStringFormat="{TemplateBinding HeaderStringFormat}" ContentSource="Header" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<ItemsPresenter x:Name="ItemsHost" Grid.ColumnSpan="2" Grid.Column="1" Grid.Row="1"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsExpanded" Value="False">
<Setter Property="Visibility" TargetName="ItemsHost" Value="Collapsed"/>
</Trigger>
<Trigger Property="HasItems" Value="False">
<Setter Property="Visibility" TargetName="Expander" Value="Hidden"/>
</Trigger>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
</Trigger>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsSelected" Value="True"/>
<Condition Property="IsSelectionActive" Value="False"/>
</MultiTrigger.Conditions>
<Setter Property="Background" TargetName="Bd" Value="{DynamicResource {x:Static SystemColors.InactiveSelectionHighlightBrushKey}}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.InactiveSelectionHighlightTextBrushKey}}"/>
</MultiTrigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</TreeView.ItemContainerStyle>
</TreeView>
</Grid>
VirtualizingPanel.IsVirtualizing 속성에 대한 트리거를 추가해야합니까? TreeView에서 VirtualizingPanel.IsVirtualising 속성을 설정할 수 있다고 생각했습니다. – randusr836
기본 작업 템플릿을 게시했습니다. 귀하의 요구 사항에 따라 수정할 수 있습니다. 지역 값은 스타일 설정자가 설정 한 값보다 우선합니다. – mm8