WPF 精修篇 事件触发器

原文:WPF 精修篇 事件触发器

事件触发器 一般使用的就是动画

    <Grid>





        <TextBlock Text="事件触发器" Opacity="0.2" FontSize="30" HorizontalAlignment="Center" VerticalAlignment="Center">





            <TextBlock.Style>





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





                    <Style.Triggers>





                        <EventTrigger RoutedEvent="MouseEnter">





                            <EventTrigger.Actions>





                                <BeginStoryboard>





                                    <Storyboard>





                                        <DoubleAnimation Storyboard.TargetProperty="Opacity" Duration="0:0:0.5" To="1"></DoubleAnimation>





                                        <DoubleAnimation Storyboard.TargetProperty="FontSize" Duration="0:0:0.5" To="50"></DoubleAnimation>





                                    </Storyboard>





                                </BeginStoryboard>





                            </EventTrigger.Actions>





                        </EventTrigger>





                        <EventTrigger RoutedEvent="MouseLeave">





                            <EventTrigger.Actions>





                                <BeginStoryboard>





                                    <Storyboard>





                                        <DoubleAnimation Storyboard.TargetProperty="Opacity" Duration="0:0:0.5" To="0.2"></DoubleAnimation>





                                            <DoubleAnimation Storyboard.TargetProperty="FontSize" Duration="0:0:0.5" To="30"></DoubleAnimation>





                                    </Storyboard>





                                </BeginStoryboard>





                            </EventTrigger.Actions>





                        </EventTrigger>





                    </Style.Triggers>





                </Style>





            </TextBlock.Style>





        </TextBlock>





    </Grid>

动手写 比较精简 用Blend 来写 会生成很多代码哟