标签：http sha odi nim mod eve too img span
例子1 简单触发器Triggers——满足简答的条件，触发
<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="300" Width="300" > <Window.Resources> <Style x:Key="BigFontButton"> <Style.Setters> <Setter Property="Control.FontFamily" Value="Times New Roman" /> <Setter Property="Control.FontSize" Value="10" /> </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="5"> <Button Padding="5" Margin="5" Style="{StaticResource BigFontButton}" >A Customized Button</Button> <TextBlock Margin="5">Normal Content.</TextBlock> <Button Padding="5" Margin="5" >A Normal Button</Button> <TextBlock Margin="5">More normal Content.</TextBlock> <Button Padding="5" Margin="5" Style="{StaticResource BigFontButton}" >Another Customized Button</Button> </StackPanel> </Window>
例子2 条件多触发MultiTriggers——满足多条件才触发
<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>
例子3 事件触发器EventTrigger——在特定的路由事件发生时被触发，主要用于动画。
<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>
例字4 数据触发器DataTrigger——根据绑定的数据不同显示不同的内容。
<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>
标签：http sha odi nim mod eve too img span
原文地址：https://www.cnblogs.com/xietianjiao/p/11196312.html
