Windows 8實用竅門系列：6.Windows 8中的Popup使用方式

　　在上一篇文章中我們將了替代Silverlight中MessageBox的MessageDialog控制項,本篇文章將講訴另外一種彈出提示視窗的控制項Popup。

　　一、我們認識Popup控制項的IsLightDismissEnabled屬性，這個屬性設定為true的時候，點擊非Popup控制項外任何地區將關閉Popup。

        <Button Content="快顯視窗一" 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>眾芳搖落獨暄妍，佔盡風情向小園</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>疏影橫斜水清淺，暗香浮動月黃昏</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>霜禽欲下先偷眼，粉蝶如知合斷魂</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>幸有微吟可相狎，不須檀板共金樽</Run>                </TextBlock>            </Grid>        </Popup>

　　二、我們看Popup的顯示和隱藏時的動畫設定，具體類型有以下幾種，具體效果可以自己下載執行個體並且修改執行個體來觀看。

AddDeleteThemeTransition

ContentThemeTransition

EdgeUIThemeTransition

EntranceThemeTransition

PaneThemeTransition

PopupThemeTransition

ReorderThemeTransition

RepositionThemeTransition

        <Button Content="快顯視窗二" 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>莫笑農家臘酒渾，豐年留客足雞豚</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>山重水複疑無路，柳暗花明又一村</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>蕭鼓追隨春社近，衣冠簡樸古風存</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>從今若許閑乘月，拄杖無時夜叩門</Run>                </TextBlock>            </Grid>        </Popup>        <Button Content="快顯視窗三" 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，但見群鷗日日來</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>花徑不曾緣客掃，蓬門今始為君開</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>盤飧市遠無兼味，樽酒家貧只舊醅</Run>                    <LineBreak/>                    <LineBreak/>                    <Run>肯與鄰翁相對飲，隔籬呼取盡餘杯</Run>                </TextBlock>            </Grid>        </Popup>

　　三、Popup的內容還可以直接繼承於使用者控制項，以將使用者控制項直接彈出。下面的執行個體代碼中UC1是一個使用者控制項，可下載源碼觀看

        <Button Content="快顯視窗四" 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>

　　最後如需源碼請點擊 Win8Popup.rar 下載.如下：