PCL2-NewsHomepage/Project/libraries/Homepage/addressCard.xaml

<local:MyCard Title="转到页面" Margin="0,5">
    <StackPanel Margin="25,40,23,15">
    <Grid>
      <Grid.ColumnDefinitions>
        <ColumnDefinition Width="1*"/>
        <ColumnDefinition Width="100"/> 
      </Grid.ColumnDefinitions>
      <local:MyTextBox x:Name="jumpbox" Height="30" />
        <local:MyButton HorizontalAlignment="Center" Width="80"
            Grid.Column="1" Text="打开→" EventType="打开帮助" 
            EventData="{Binding Path=Text,ElementName=jumpbox,StringFormat=https://${domain}/{0}.json}"/>
    </Grid>
    </StackPanel>
</local:MyCard>