wpf ---style

Posted 2021-02-17 frogkiller

一 样式:

1,Style 的常用用法:

         在资源中使用Style---指定Key

 <Window.Resources>
    <Style x:Key="BigFontButtonStyle">
      <Setter Property="Control.FontFamily" Value="Times New Roman" />
      <Setter Property="Control.FontSize" Value="18" />
      <Setter Property="Control.FontWeight" Value="Bold" />
    </Style>
  </Window.Resources>

      在资源中使用Style---指定类型

  <Window.Resources>
    <Style TargetType="Button">
      <Setter Property="FontFamily" Value="Times New Roman" />
      <Setter Property="FontSize" Value="18" />
      <Setter Property="FontWeight" Value="Bold" />
    </Style>
  </Window.Resources>

//在具体按钮中如不想使用可以使用 Style={x:NULL}

     Style常用属性:

   4,设定事件Style

 <Window.Resources>
    <Style x:Key="MouseOverHighlightStyle">
      <Setter Property="TextBlock.Padding" Value="5"/>
      <EventSetter Event="FrameworkElement.MouseEnter" Handler="element_MouseEnter" />
      <EventSetter Event="FrameworkElement.MouseLeave" Handler="element_MouseLeave" />
    </Style>
  </Window.Resources>

二二

二触发器:

1,简单触发器:

 <Window.Resources>
    <Style x:Key="BigFontButton">
      <Style.Setters>
        <Setter Property="Control.FontFamily" Value="Times New Roman" />
        <Setter Property="Control.FontSize" Value="18" />

      </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>

设定按钮在 获得焦点,鼠标悬浮以及按下时的状态

2,多重触发器--需要几个属性都满足时才触发

<Style TargetType="Button">
            <Style.Triggers>
                <MultiTrigger>
                    <MultiTrigger.Conditions>
                        <Condition Property="IsFocused" Value="true"/>
                        <Condition Property="IsMouseOver" Value="true"/>

                    </MultiTrigger.Conditions>
                    <MultiTrigger.Setters>
                        <Setter Property="Foreground" Value="DarkGray"/>
                    </MultiTrigger.Setters>
                </MultiTrigger>
            </Style.Triggers>
        </Style>

3,事件触发器:

<Window.Resources>
        <Style TargetType="Button">
            <Style.Triggers>
                <EventTrigger RoutedEvent="Mouse.MouseEnter">
                    <EventTrigger.Actions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Duration="0:0:0.2"
                                    Storyboard.TargetProperty="FontSize"
                                    To="22"/>
                            </Storyboard>
                        </BeginStoryboard>
                    </EventTrigger.Actions>
                </EventTrigger>
                <EventTrigger RoutedEvent="Mouse.MouseLeave">
                    <EventTrigger.Actions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation
                                    Duration="0:0:1"
                                    Storyboard.TargetProperty="FontSize"
                                    />
                            </Storyboard>
                        </BeginStoryboard>
                    </EventTrigger.Actions>
                </EventTrigger>
            </Style.Triggers>
        </Style>
    </Window.Resources>

顺便触发了动画效果

4,用属性触发器触发动画效果

<Window.Resources>
        <Style TargetType="Button">
            <Style.Triggers>
                <Trigger Property="Control.IsFocused" Value="true">
                    <Trigger.EnterActions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation Duration="0:0:1"
                                                 Storyboard.TargetProperty="FontSize"
                                                 To="20"/>
                            </Storyboard>
                        </BeginStoryboard>
                    </Trigger.EnterActions>
                    <Trigger.ExitActions>
                        <BeginStoryboard>
                            <Storyboard>
                                <DoubleAnimation Duration="0:0:1"
                                                 Storyboard.TargetProperty="FontSize"
                                                 />
                            </Storyboard>
                        </BeginStoryboard>
                    </Trigger.ExitActions>
                </Trigger>
            </Style.Triggers>
        </Style>
    </Window.Resources>

将触发改成Actions

三,行为----用于将行为使用到原件上去

                1,使用支持行为的dll---Interactivity

                2,创建自定义的行为类库

               3,参考列子.