Как добавить или (перезаписать по умолчанию) навести курсор и выбрать стиль для Kendo RadTreeView в Wpf

Question

Я новичок в WPF и Telerik UI для WPF . Я использую Telerik's RadTreeview

Каким-то образом я добавил собственный стиль, но не могу добавить эффект наведения и также выбрал эффект в RadTreeview.

Есть много примеров, но это главное для базового дерева. Попытка добавления шаблона содержимого .. не удается загрузить родительский или дочерний узел ..

Может ли кто-нибудь помочь мне в этом.

Заранее спасибо ... !!!

Ниже приведен мой пользовательский стиль для RadtreeviewItem

<Style x:Key="myItemContainerStyle" TargetType="telerik:RadTreeViewItem">
        <Setter Property="Background" Value="#2199e8"/>
        <Setter Property="Foreground" Value="#ffffff"/>
        <Setter Property="FontWeight" Value="Bold"/>
        <Setter Property="Padding" Value="20 5"/>
        <Setter Property="FontSize" Value="20"/>
        <Setter Property="IsExpanded" Value="False"/>
        <Style.Triggers>
            <Trigger Property="IsSelected" Value="True">
                <Setter Property="BorderBrush" Value="#adc6e5"/>
                <Setter Property="Foreground" Value="Black" />
                <Setter Property="Background" Value="Red" />
            </Trigger>
            <Trigger Property="IsMouseOver" Value="True">
                <Setter Property="BorderBrush" Value="LightBlue" />
                <Setter Property="Foreground" Value="Black" />
                <Setter Property="Background" Value="Red" />
            </Trigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="IsSelected" Value="True"/>
                    <Condition Property="IsSelectionActive" Value="False"/>
                </MultiTrigger.Conditions>
                <Setter Property="BorderBrush" Value="LightGray"/>
            </MultiTrigger>
        </Style.Triggers>
        <Style.Resources>
            <Style TargetType="Border">
                <Setter Property="CornerRadius" Value="2"/>
            </Style>
        </Style.Resources>
    </Style>

Answer 1

Из-за определения по умолчанию ControlTemplate, боюсь, вы не можете решить эту проблему с помощью триггеров стиля. Вам необходимо создать полный пользовательский элемент ControlTemplate и изменить элементы MouseOverVisual, SelectionUnfocusedVisual и SelectionVisual Border в соответствии с вашими требованиями:

<Style x:Key="myItemContainerStyle" TargetType="telerik:RadTreeViewItem">
    <Setter Property="Background" Value="#2199e8"/>
    <Setter Property="Foreground" Value="#ffffff"/>
    <Setter Property="FontWeight" Value="Bold"/>
    <Setter Property="Padding" Value="20 5"/>
    <Setter Property="FontSize" Value="20"/>
    <Setter Property="IsExpanded" Value="False"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="telerik:RadTreeViewItem">
                <Grid x:Name="RootElement" UseLayoutRounding="True">
                    <VisualStateManager.VisualStateGroups>
                        <VisualStateGroup x:Name="EditStates">
                            <VisualState x:Name="Display"/>
                            <VisualState x:Name="Edit">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="EditHeaderElement" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Visible</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Header" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Collapsed</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                        <VisualStateGroup x:Name="CommonStates">
                            <VisualState x:Name="Normal"/>
                            <VisualState x:Name="Disabled">
                                <Storyboard>
                                    <DoubleAnimation Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Header" To="0.35" Duration="0"/>
                                    <DoubleAnimation Storyboard.TargetProperty="Opacity" Storyboard.TargetName="Image" To="0.35" Duration="0"/>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="MouseOver">
                                <Storyboard>
                                    <DoubleAnimation Storyboard.TargetProperty="Opacity" Storyboard.TargetName="MouseOverVisual" To="1" Duration="0"/>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                        <VisualStateGroup x:Name="SelectionStates">
                            <VisualState x:Name="Unselected"/>
                            <VisualState x:Name="Selected">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="SelectionVisual" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Visible</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="SelectedUnfocused">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="SelectionUnfocusedVisual" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Visible</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                        <VisualStateGroup x:Name="LoadingOnDemandStates">
                            <VisualState x:Name="LoadingOnDemand">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="LoadingVisual" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Visible</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Expander" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Collapsed</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                    <DoubleAnimation Storyboard.TargetName="LoadingVisualAngleTransform" Storyboard.TargetProperty="Angle" From="0" To="359" Duration="0:0:1" RepeatBehavior="Forever"/>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="LoadingOnDemandReverse"/>
                        </VisualStateGroup>
                        <VisualStateGroup x:Name="FocusStates">
                            <VisualState x:Name="Focused">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="FocusVisual" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Visible</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Unfocused"/>
                        </VisualStateGroup>
                        <VisualStateGroup x:Name="ExpandStates">
                            <VisualState x:Name="Expanded">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ItemsHost" Storyboard.TargetProperty="Visibility" Duration="0">
                                        <DiscreteObjectKeyFrame KeyTime="0">
                                            <DiscreteObjectKeyFrame.Value>
                                                <Visibility>Visible</Visibility>
                                            </DiscreteObjectKeyFrame.Value>
                                        </DiscreteObjectKeyFrame>
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Collapsed"/>
                        </VisualStateGroup>
                    </VisualStateManager.VisualStateGroups>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition/>
                    </Grid.RowDefinitions>
                    <Grid x:Name="HeaderRow" Background="Transparent" MinHeight="{TemplateBinding MinHeight}" SnapsToDevicePixels="True">
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Border CornerRadius="2"
                                                Background="{TemplateBinding Background}"
                                                BorderBrush="{TemplateBinding BorderBrush}"
                                                BorderThickness="{TemplateBinding BorderThickness}"
                                                Grid.Column="2"
                                                Grid.ColumnSpan="6"/>
                        <Border x:Name="MouseOverVisual"
                                                Opacity="0"
                                                Grid.ColumnSpan="6"
                                                Grid.Column="2"
                                                Background="Red"
                                                CornerRadius="1"
                                                BorderBrush="LightBlue"
                                                BorderThickness="1">
                        </Border>
                        <Border x:Name="SelectionUnfocusedVisual"
                                                Visibility="Collapsed"
                                                Grid.ColumnSpan="6"
                                                Grid.Column="2"
                                                Background="Red"
                                                CornerRadius="1"
                                                BorderBrush="#adc6e5"
                                                BorderThickness="1">
                        </Border>
                        <Border x:Name="SelectionVisual"
                                                Visibility="Collapsed"
                                                Grid.ColumnSpan="6"
                                                Grid.Column="2"
                                                Background="Red"
                                                CornerRadius="1"
                                                BorderBrush="#adc6e5"
                                                BorderThickness="1">
                        </Border>
                        <StackPanel x:Name="IndentContainer" Orientation="Horizontal">
                            <Rectangle x:Name="IndentFirstVerticalLine" Width="1" Visibility="Collapsed" Stroke="#FFCCCCCC" VerticalAlignment="Top"/>
                        </StackPanel>
                        <Grid Grid.Column="1" x:Name="ListRootContainer" HorizontalAlignment="Center" MinWidth="21">
                            <Rectangle x:Name="HorizontalLine" Height="1" Stroke="#FFCCCCCC" VerticalAlignment="Center" HorizontalAlignment="Right"/>
                            <Rectangle x:Name="VerticalLine" Width="1" Stroke="#FFCCCCCC" VerticalAlignment="Top" HorizontalAlignment="Center"/>
                            <ToggleButton x:Name="Expander" IsTabStop="False" Background="{TemplateBinding Background}"/>
                            <Grid x:Name="LoadingVisual" RenderTransformOrigin="0.5,0.5" Visibility="Collapsed" VerticalAlignment="Center" HorizontalAlignment="Center">
                                <Grid.RenderTransform>
                                    <TransformGroup>
                                        <RotateTransform x:Name="LoadingVisualAngleTransform" Angle="0" CenterX="0.5" CenterY="0.5"/>
                                    </TransformGroup>
                                </Grid.RenderTransform>
                                <Path Width="10" Height="10" Stretch="Fill" Stroke="{TemplateBinding Foreground}" StrokeThickness="1" StrokeStartLineCap="Round" Data="M1,0 A1,1,90,1,1,0,-1"/>
                                <Path
                                                    Margin="5,-1.5,0,0"
                                                    HorizontalAlignment="Left"
                                                    VerticalAlignment="Top"
                                                    Width="4"
                                                    Height="4"
                                                    Stretch="Fill"
                                                    Fill="{TemplateBinding Foreground}"
                                                    Data="M0,-1.1 L0.1,-1 L0,-0.9"
                                                    StrokeThickness="1"/>
                            </Grid>
                        </Grid>
                        <Image Grid.Column="3" x:Name="Image" MaxWidth="16" MaxHeight="16" Margin="2" HorizontalAlignment="Center" VerticalAlignment="Center"/>
                        <Rectangle x:Name="FocusVisual"
                                                    Visibility="Collapsed"
                                                    Grid.Column="2"
                                                    Grid.ColumnSpan="6"
                                                    StrokeThickness="1"
                                                    IsHitTestVisible="False"
                                                    Stroke="#FF000000"
                                                    StrokeDashArray="1 2"
                                                    RadiusX="3"
                                                    RadiusY="3"/>
                        <Grid x:Name="HeaderContentPanel" Grid.Column="4" Grid.ColumnSpan="2" Background="Transparent">
                            <ContentControl x:Name="Header"
                                                            Content="{TemplateBinding Header}"
                                                            ContentTemplate="{TemplateBinding HeaderTemplate}"
                                                            Margin="{TemplateBinding Padding}"
                                                            IsTabStop="False"
                                                            HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                            VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                                            ContentTemplateSelector="{TemplateBinding HeaderTemplateSelector}"
                                                            Foreground="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Foreground, Mode=OneWay}"/>
                            <ContentPresenter x:Name="EditHeaderElement"
                                                                Visibility="Collapsed"
                                                                HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                                                                VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
                                                                Margin="{TemplateBinding Padding}"
                                                                ContentTemplateSelector="{TemplateBinding HeaderEditTemplateSelector}"
                                                                ContentTemplate="{TemplateBinding HeaderEditTemplate}"/>
                        </Grid>
                        <CheckBox IsTabStop="False" Grid.Column="2" VerticalAlignment="Center" Margin="5,0,0,0" x:Name="CheckBoxElement" Visibility="Collapsed"/>
                        <RadioButton IsTabStop="False" Grid.Column="2" Margin="5,0,0,0" VerticalAlignment="Center" x:Name="RadioButtonElement" Visibility="Collapsed"/>
                    </Grid>
                    <ItemsPresenter Grid.Row="1" x:Name="ItemsHost" Visibility="Collapsed"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Style.Triggers>
        <Trigger Property="IsSelected" Value="True">
            <Setter Property="Foreground" Value="Black" />
        </Trigger>
        <Trigger Property="IsMouseOver" Value="True">
            <Setter Property="Foreground" Value="Black" />
        </Trigger>
        <MultiTrigger>
            <MultiTrigger.Conditions>
                <Condition Property="IsSelected" Value="True"/>
                <Condition Property="IsSelectionActive" Value="False"/>
            </MultiTrigger.Conditions>
            <Setter Property="BorderBrush" Value="LightGray"/>
        </MultiTrigger>
    </Style.Triggers>
    <Style.Resources>
        <Style TargetType="Border">
            <Setter Property="CornerRadius" Value="2"/>
        </Style>
    </Style.Resources>
</Style>