Windows 8中的Popup使用方式

一、我们认识Popup控件的IsLightDismissEnabled属性，这个属性设置为true的时候，点击非Popup控件外任何区域将关闭Popup。

       
 <Button Content="弹出窗口一" Name="btn1" Width="108"                Margin="161,96,0,0" VerticalAlignment="Top" Height="52" Click="btn1_Click"/>        <Popup x:Name="tip1" IsLightDismissEnabled="True"               HorizontalOffset="161" VerticalOffset="250">            <Grid Width="312" Height="200" >                <Grid.Background>                    <ImageBrush ImageSource="./BG.png"></ImageBrush>                </Grid.Background>                <TextBlock Grid.Row="0" Foreground="White" Grid.Column="0"                           FontSize="15" Height="Auto" HorizontalAlignment="Center"                            Margin="0 20 0 0" VerticalAlignment="Top">                    <Run>众芳摇落独暄妍，占尽风情向小园</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>疏影横斜水清浅，暗香浮动月黄昏</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>霜禽欲下先偷眼，粉蝶如知合断魂</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>幸有微吟可相狎，不须檀板共金樽</Run>                </TextBlock>            </Grid>        </Popup>

　　二、我们看Popup的显示和隐藏时的动画设置，具体类型有以下几种，具体效果可以自己下载实例并且修改实例来观看。

AddDeleteThemeTransitionContentThemeTransitionEdgeUIThemeTransitionEntranceThemeTransitionPaneThemeTransitionPopupThemeTransitionReorderThemeTransitionRepositionThemeTransition

        
<Button Content="弹出窗口二" x:Name="btn1_Copy" Width="108"                Margin="510,96,0,0" VerticalAlignment="Top" Height="52" Click="btn1_Copy_Click"/>        <Popup x:Name="tip2" IsLightDismissEnabled="True"               HorizontalOffset="510" VerticalOffset="250">            <Popup.ChildTransitions>                <TransitionCollection>                    <AddDeleteThemeTransition></AddDeleteThemeTransition>                    <ContentThemeTransition/>                    <EdgeUIThemeTransition></EdgeUIThemeTransition>                    <EntranceThemeTransition></EntranceThemeTransition>                    <PaneThemeTransition></PaneThemeTransition>                    <PopupThemeTransition></PopupThemeTransition>                    <ReorderThemeTransition></ReorderThemeTransition>                    <RepositionThemeTransition></RepositionThemeTransition>                </TransitionCollection>            </Popup.ChildTransitions>            <Grid Width="312" Height="200" >                <Grid.Background>                    <ImageBrush ImageSource="./BG.png"></ImageBrush>                </Grid.Background>                <TextBlock Grid.Row="0" Foreground="Yellow" Grid.Column="0"                           FontSize="15" Height="Auto" HorizontalAlignment="Center"                            Margin="0 20 0 0" VerticalAlignment="Top">                    <Run>莫笑农家腊酒浑，丰年留客足鸡豚</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>山重水复疑无路，柳暗花明又一村</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>萧鼓追随春社近，衣冠简朴古风存</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>从今若许闲乘月，拄杖无时夜叩门</Run>                </TextBlock>            </Grid>        </Popup>        <Button Content="弹出窗口三" x:Name="btn1_Copy1" Width="108"                Margin="850,96,0,0" VerticalAlignment="Top" Height="52" Click="btn1_Copy1_Click"  />        <Popup x:Name="tip3" IsLightDismissEnabled="True" VerticalOffset="250"               HorizontalOffset="-312" HorizontalAlignment="Right">            <Popup.ChildTransitions>                <TransitionCollection>                    <PaneThemeTransition />                </TransitionCollection>            </Popup.ChildTransitions>            <Grid Width="312" Height="200" >                <Grid.Background>                    <ImageBrush ImageSource="./BG.png"></ImageBrush>                </Grid.Background>                <TextBlock Grid.Row="0" Foreground="Coral" Grid.Column="0"                           FontSize="15" Height="Auto" HorizontalAlignment="Center"                            Margin="0 20 0 0" VerticalAlignment="Top">                    <Run>舍南舍北皆春水，但见群鸥日日来</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>花径不曾缘客扫，蓬门今始为君开</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>盘飧市远无兼味，樽酒家贫只旧醅</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>肯与邻翁相对饮，隔篱呼取尽馀杯</Run>                </TextBlock>            </Grid>        </Popup>

　　三、Popup的内容还可以直接继承于用户控件，以将用户控件直接弹出。下面的实例代码中UC1是一个用户控件，可下载源码观看

        
<Button Content="弹出窗口四" x:Name="btn1_Copy2" Width="108"            Margin="1150,96,0,0" VerticalAlignment="Top" Height="52" Click="btn1_Copy2_Click" />        <Popup x:Name="tip4" IsLightDismissEnabled="True"                HorizontalOffset="850" VerticalOffset="250">            <Popup.ChildTransitions>                <TransitionCollection>                    <AddDeleteThemeTransition/>                </TransitionCollection>            </Popup.ChildTransitions>            <local:UC1/>        </Popup>