<Window x:Class="Styles.SimpleTriggers"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Title="SimpleTriggers" Height="" Width=""

>

<Window.Resources>

<Style x:Key="BigFontButton">

<Style.Setters>

<Setter Property="Control.FontFamily" Value="Times New Roman" />

<Setter Property="Control.FontSize" Value="" />

</Style.Setters>

<Style.Triggers>

<Trigger Property="Control.IsFocused" Value="True">

<Setter Property="Control.Foreground" Value="DarkRed" />

</Trigger>

<!--<Trigger Property="Control.IsMouseOver" Value="True">

<Setter Property="Control.Foreground" Value="LightYellow" />

<Setter Property="Control.FontWeight" Value="Bold" />

</Trigger>

<Trigger Property="Button.IsPressed" Value="True">

<Setter Property="Control.Foreground" Value="Red" />

</Trigger>-->

</Style.Triggers>

</Style>

</Window.Resources>

<StackPanel Margin="">

<Button Padding="" Margin=""

Style="{StaticResource BigFontButton}"

>A Customized Button</Button>

<TextBlock Margin="">Normal Content.</TextBlock>

<Button Padding="" Margin=""

>A Normal Button</Button>

<TextBlock Margin="">More normal Content.</TextBlock>

<Button Padding="" Margin=""

Style="{StaticResource BigFontButton}"

>Another Customized Button</Button>

</StackPanel>

</Window>

<MultiTrigger>

<MultiTrigger.Conditions>

<Condition Property="IsFocused" Value="True"></Condition>

<Condition Property="Content" Value="{x:Null}"></Condition>

</MultiTrigger.Conditions>

<Setter Property="ToolTip" Value="content is null!"></Setter>

</MultiTrigger>

<Style TargetType="ListBoxItem">

<Setter Property="Opacity" Value="0.5" />

<Setter Property="MaxHeight" Value="75" />

<Style.Triggers>

<Trigger Property="IsSelected" Value="True">

<Trigger.Setters>

<Setter Property="Opacity" Value="1.0" />

</Trigger.Setters>

</Trigger>

<EventTrigger RoutedEvent="Mouse.MouseEnter">

<EventTrigger.Actions>

<BeginStoryboard>

<Storyboard>

<DoubleAnimation

Duration="0:0:0.2"

Storyboard.TargetProperty="MaxHeight"

To="90" />

</Storyboard>

</BeginStoryboard>

</EventTrigger.Actions>

</EventTrigger>

<EventTrigger RoutedEvent="Mouse.MouseLeave">

<EventTrigger.Actions>

<BeginStoryboard>

<Storyboard>

<DoubleAnimation

Duration="0:0:1"

Storyboard.TargetProperty="MaxHeight" />

</Storyboard>

</BeginStoryboard>

</EventTrigger.Actions>

</EventTrigger>

</Style.Triggers>

</Style>

<TreeView Name="_tree" Margin="0" BorderThickness="0" VerticalAlignment="Stretch" Background="Transparent" ItemsSource="{Binding Children}" >

<TreeView.ItemTemplate>

<HierarchicalDataTemplate ItemsSource="{Binding Children}">

<Border CornerRadius="0" Margin="1" x:Name="back" MinWidth="70"

Background="Transparent" DataContext="{Binding}" PreviewMouseMove="TreeItem_PreviewMouseMove">

<StackPanel Orientation="Horizontal" Margin="2">

<Image x:Name="BGimage" Source="/Vdc3D.Coms.DModelEditor;component/Images/item.png" Height="15" Width="15" />

<TextBlock Text="{Binding ShowText}" Margin="2 0"/>

</StackPanel>

<Border.ContextMenu>

<ContextMenu x:Name="menu" >

<MenuItem Header="Add Directory" x:Name="menu_addDir" Click="AddDir_Click" DataContext="{Binding}"/>

<MenuItem Header="Add Property" x:Name="menu_addChild" Click="AddChild_Click" DataContext="{Binding}"/>

<MenuItem Header="Edit" Click="Modify_Click" DataContext="{Binding}"/>

<MenuItem Header="Delete" Click="Delete_Click" DataContext="{Binding}"/>

</ContextMenu>

</Border.ContextMenu>

</Border>

<HierarchicalDataTemplate.Triggers>

<MultiDataTrigger>

<MultiDataTrigger.Conditions>

<Condition Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type TreeViewItem}},Path=IsExpanded}" Value="False"/>

<Condition Binding="{Binding IsDir}" Value="True"/>

</MultiDataTrigger.Conditions>

<MultiDataTrigger.Setters>

<Setter TargetName="BGimage" Property="Source" Value="/Vdc3D.Coms.DModelEditor;component/Images/dir.png" />

</MultiDataTrigger.Setters>

</MultiDataTrigger>

<MultiDataTrigger>

<MultiDataTrigger.Conditions>

<Condition Binding="{Binding RelativeSource={RelativeSource Mode=FindAncestor,AncestorType={x:Type TreeViewItem}},Path=IsExpanded}" Value="True"/>

<Condition Binding="{Binding IsDir}" Value="True"/>

</MultiDataTrigger.Conditions>

<MultiDataTrigger.Setters>

<Setter TargetName="BGimage" Property="Source" Value="/Vdc3D.Coms.DModelEditor;component/Images/dir_open.png" />

</MultiDataTrigger.Setters>

</MultiDataTrigger>

<DataTrigger Binding="{Binding IsDir}" Value="True">

<Setter TargetName="menu_addDir" Property="Visibility" Value="Visible"/>

<Setter TargetName="menu_addChild" Property="Visibility" Value="Visible"/>

</DataTrigger>

<DataTrigger Binding="{Binding IsDir}" Value="False">

<Setter TargetName="menu_addDir" Property="Visibility" Value="Collapsed"/>

<Setter TargetName="menu_addChild" Property="Visibility" Value="Collapsed"/>

</DataTrigger>

</HierarchicalDataTemplate.Triggers>

</HierarchicalDataTemplate>

</TreeView.ItemTemplate>

</TreeView>