次のコードは例外をスローします。
<TreeView
ItemsSource="{Binding TreeRootInstance}"
x:Name="Htree"
ItemTemplate="CellTemplate"
SelectedItemChanged="HTree_OnSelectedItemChanged"
KeyDown="HTree_KeyDown">
<TreeView.Resources>
<DataTemplate x:Key="CellTemplate">
<Border>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto"/>
<ColumnDefinition Width="auto"/>
</Grid.ColumnDefinitions>
<ToggleButton x:Name="Expander"
HorizontalAlignment="Right"
Focusable="False"
Grid.Column="1"
IsChecked="{Binding Path=IsExpanded, RelativeSource={RelativeSource AncestorType={x:Type vw:TreeViewItem}}}"
ClickMode="Press"/>
<TextBlock
Text="{Binding Name}"
Grid.Column="0" />
</Grid>
</Border>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Path=HasItems, RelativeSource={RelativeSource AncestorType={x:Type TreeViewItem}}}" Value="False">
<Setter TargetName="Expander" Property="Visibility" Value="Hidden"/>
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
<Style TargetType="{x:Type TreeViewItem}" x:Key="aa">
<Setter Property="IsTabStop" Value="True"/>
<Setter Property="TabIndex" Value="0"/>
<Setter Property="IsExpanded" Value="{Binding Path=IsExpanded,Mode=TwoWay}"/>
<Setter Property="ItemsSource" Value="{Binding Children}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TreeViewItem}">
<StackPanel>
<Border Name="Bd">
</Border>
<ItemsPresenter x:Name="ItemsHost" />
</StackPanel>
<ControlTemplate.Triggers>
<Trigger Property="IsExpanded" Value="false">
<Setter TargetName="ItemsHost"
Property="Visibility"
Value="Collapsed"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style TargetType="{x:Type TreeView}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TreeView}">
<Border BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="ItemContainerStyle" Value="{StaticResource aa}" />
</Style>
</TreeView.Resources>
</TreeView>
(コードの一部を省略しましたが、メインの採用者はまだそこにいます...)例外はItemsControl.ItemTemplateのxaml解析例外です。
このコードを機能させる方法を教えてください。
ありがとう、李