1. 样式中的Setter

使用示例：

01 <Window x:Class="DeepXAML.MainWindow"
03         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
04         xmlns:local="clr-namespace:DeepXAML"       
05         xmlns:sys="clr-namespace:System;assembly=mscorlib"
06         Title="MainWindow" Height="250" Width="450">
07     <Window.Resources>
08         <Style TargetType="Button">
09             <Setter Property="FontSize" Value="30"></Setter>
10             <Setter Property="Margin" Value="10"></Setter>
11         </Style>
12     </Window.Resources>       
13     <StackPanel>
14         <Button>New</Button>
15         <Button>Save</Button>
16         <Button>Exit</Button>
17     </StackPanel>
18 </Window>
19 <A href="javascript:void(0)"><IMG title=image style="BORDER-TOP-WIDTH: 0px; PADDING-RIGHT: 0px; DISPLAY: inline; PADDING-LEFT: 0px; BORDER-LEFT-WIDTH: 0px; BACKGROUND-IMAGE: none; BORDER-BOTTOM-WIDTH: 0px; MARGIN: 0px; PADDING-TOP: 0px; BORDER-RIGHT-WIDTH: 0px" height=137 alt=image src="javascript:void(0)" width=244 border=0></A>

很明显，使用样式让我们代码更精简，而且界面的外观可以集中处理。

 

2. 样式中的Trigger

当某些条件满足时，触发一个行为

a. 基本Trigger

01 <Window x:Class="DeepXAML.MainWindow"
03         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
04         xmlns:local="clr-namespace:DeepXAML"       
05         xmlns:sys="clr-namespace:System;assembly=mscorlib"
06         Title="MainWindow" Height="250" Width="450">
07     <Window.Resources>
08         <Style TargetType="CheckBox">
09             <Setter Property="FontSize" Value="30"></Setter>
10             <Setter Property="Margin" Value="10"></Setter>
11             <Style.Triggers>
12                 <Trigger Property="IsChecked" Value="true">
13                     <Trigger.Setters>
14                         <Setter Property="Foreground"  Value="Red"></Setter>
15                     </Trigger.Setters>
16                 </Trigger>    
17             </Style.Triggers>
18         </Style>
19     </Window.Resources>       
20     <StackPanel>
21         <CheckBox>.Net</CheckBox>
22         <CheckBox>Java</CheckBox>
23         <CheckBox>Ruby</CheckBox>
24         <CheckBox>Python</CheckBox>
25     </StackPanel>
26 </Window>
WPF-样式_java

 

b. MultiTrigger

01 <Window x:Class="DeepXAML.MainWindow"
03         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
04         xmlns:local="clr-namespace:DeepXAML"       
05         xmlns:sys="clr-namespace:System;assembly=mscorlib"
06         Title="MainWindow" Height="250" Width="450">
07     <Window.Resources>
08         <Style TargetType="CheckBox">
09             <Setter Property="FontSize" Value="30"></Setter>
10             <Setter Property="Margin" Value="10"></Setter>
11             <Style.Triggers>
12                 <MultiTrigger>
13                     <MultiTrigger.Conditions>
14                         <Condition Property="IsChecked" Value="true"></Condition>
15                         <Condition Property="Content" Value="Java"></Condition>
16                     </MultiTrigger.Conditions>
17                     <MultiTrigger.Setters>
18                         <Setter Property="Foreground" Value="Red"></Setter>
19                     </MultiTrigger.Setters>
20                 </MultiTrigger>
21             </Style.Triggers>
22         </Style>
23     </Window.Resources>       
24     <StackPanel>
25         <CheckBox>.Net</CheckBox>
26         <CheckBox>Java</CheckBox>
27         <CheckBox>Ruby</CheckBox>
28         <CheckBox>Python</CheckBox>
29     </StackPanel>
30 </Window>

WPF-样式_WPF_02

 

c. DataTrigger

01 <Window x:Class="DeepXAML.MainWindow"
03         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
04         xmlns:local="clr-namespace:DeepXAML"       
05         xmlns:sys="clr-namespace:System;assembly=mscorlib"
06         Title="MainWindow" Height="250" Width="450">
07     <Window.Resources>
08         <Style TargetType="TextBox">
09             <Setter Property="Margin" Value="10"></Setter>
10             <Style.Triggers>
11                 <DataTrigger Binding="{Binding Path=Name}" Value="Jack">
12                     <Setter Property="Foreground" Value="Red"></Setter>
13                 </DataTrigger>               
14             </Style.Triggers>
15         </Style>
16     </Window.Resources>
17     <StackPanel x:Name="stackPanel">
18         <TextBox Text="{Binding Path=Name}"></TextBox>
19         <TextBox Text="{Binding Path=Age}"></TextBox>
20         <TextBox></TextBox>
21     </StackPanel>
22 </Window>
01 public MainWindow()
02 {
03     InitializeComponent();
04   
05     Person p = new Person { Name = "Jack", Age = 30 };
06     this.stackPanel.DataContext = p;            
07 }
08   
09 public class Person
10 {
11     public string Name { get; set; }
12     public int Age { get; set; }
13 }
WPF-样式_java_03

 

d. 多数据条件的trigger

MultiDataTrigger这个类似上面的MultiTrigger,不用细说了。

e. EventTrigger

是由事件来触发

01 <Window x:Class="DeepXAML.MainWindow"
03         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
04         xmlns:local="clr-namespace:DeepXAML"       
05         xmlns:sys="clr-namespace:System;assembly=mscorlib"
06         Title="MainWindow" Height="250" Width="450">
07     <Window.Resources>
08         <Style TargetType="Button">
09             <Setter Property="Margin" Value="10"></Setter>
10             <Style.Triggers>
11                 <EventTrigger RoutedEvent="MouseEnter">
12                     <BeginStoryboard>
13                         <Storyboard>                            
14                             <DoubleAnimation To="20" Duration="0:0:0.2" Storyboard.TargetProperty="Width"></DoubleAnimation>
15                             <DoubleAnimation To="70" Duration="0:0:0.2" Storyboard.TargetProperty="Height"></DoubleAnimation>
16                         </Storyboard>
17                     </BeginStoryboard>
18                 </EventTrigger>
19                 <EventTrigger RoutedEvent="MouseLeave">
20                     <BeginStoryboard>
21                         <Storyboard>
22                             <DoubleAnimation To="100" Duration="0:0:0.2" Storyboard.TargetProperty="Width"></DoubleAnimation>
23                             <DoubleAnimation To="20" Duration="0:0:0.2" Storyboard.TargetProperty="Height"></DoubleAnimation>
24                         </Storyboard>
25                     </BeginStoryboard>
26                 </EventTrigger>
27             </Style.Triggers>
28         </Style>
29     </Window.Resources>
30     <StackPanel x:Name="stackPanel">
31         <Button Width="100" Height="20">OK</Button>
32     </StackPanel>
33 </Window>
34   
35 <FONT color=#ff0000>这里DoubleAnimation必须显示设置Button的Width和Height,不能是用默认的，否则会报错。</FONT>