（WPF）依赖属性

时间：2024-09-28 10:03:50

属性触发器：

        <Button MinWidth=" 75" Margin="10">

            <Button.Style>

                <Style TargetType="{x:Type Button}">

                    <Style.Triggers>

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

                            <Setter Property="Foreground" Value="Blue"/>

                        </Trigger>

                    </Style.Triggers>

                </Style>

            </Button.Style>

                    OK

        </Button>

数据触发器：



        <Style TargetType="TextBlock">

            <Style.Triggers>

                <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self},Path=Text}" Value="8">    //使源元素为目标元素本身的TextBlock的Text属性。

                                                                                                                  // 满足条件：Value=8

                    <Setter Property="Foreground"

                            Value="Red"></Setter>

                </DataTrigger>

            </Style.Triggers>

        </Style>
        <TextBlock Height="Auto"

                   HorizontalAlignment="Center"

                   Margin="0"

                   Name="textBlock1"

                   Text="8"

                   VerticalAlignment="Center"

                   Grid.Row="1" />





事件触发器：

  <Window.Triggers>

    <EventTrigger RoutedEvent="Window.Loaded">

      <EventTrigger.Actions>

        <BeginStoryboard>

          <Storyboard SpeedRatio="1">

            <DoubleAnimation Storyboard.TargetName="element"

                                Storyboard.TargetProperty="Opacity"

                                From="0.2" To="1" Duration="0:0:2.5"></DoubleAnimation>

          </Storyboard>

        </BeginStoryboard>

      </EventTrigger.Actions>

    </EventTrigger>

  </Window.Triggers>

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