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控件,本篇文章將講訴另外一種彈出提示窗口的控件Popup。

　　一、我們認識Popup控件的IsLightDismissEnabled屬性，這個屬性設置為true的時候，點擊非Popup控件外任何區域將關閉Popup。

        <Button Content="彈出窗口一" 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>眾芳搖落獨暄妍，占盡風情向小園</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置，具體類型有以下幾種，具體效果可以自己下載實例並且修改實例來觀看。

AddDeleteThemeTransition

ContentThemeTransition

EdgeUIThemeTransition

EntranceThemeTransition

PaneThemeTransition

PopupThemeTransition

ReorderThemeTransition

RepositionThemeTransition

        <Button Content="彈出窗口二" 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>莫笑農家臘酒渾，豐年留客足雞豚</Run>
                    <LineBreak/>
                    <LineBreak/>
                    <Run>山重水復疑無路，柳暗花明又一村</Run>
                    <LineBreak/>
                    <LineBreak/>
                    <Run>蕭鼓追隨春社近，衣冠簡朴古風存</Run>
                    <LineBreak/>
                    <LineBreak/>
                    <Run>從今若許閑乘月，拄杖無時夜叩門</Run>
                </TextBlock>
            </Grid>
        </Popup>

        <Button Content="彈出窗口三" 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用戶控件，以將用戶控件直接彈出。下面的實例代碼中UC1是一個用戶控件，可下載源碼觀看

        <Button Content="彈出窗口四" 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>

　　最后如需源碼請點擊 Win8Popup.rar 下載.效果圖如下：