StackPanel（WP7）内的文字换行

Question

I'd like to wrap text contained in three TextBlock s inside a StackPanel without writing TextWrapping="Wrap" for each TextBlock (sometimes there may be more of those):

<ListBox ItemsSource="{Binding Places}" SelectedItem="{Binding SelectedPlace, Mode=TwoWay}">
        <ListBox.ItemContainerStyle>
            <Style TargetType="ListBoxItem">
                <Setter Property="HorizontalAlignment" Value="Stretch"/>
            </Style>
        </ListBox.ItemContainerStyle>
        <ListBox.ItemTemplate>
            <DataTemplate>
                <StackPanel>
                    <TextBlock Text="{Binding Path=Name, Mode=OneWay}" TextWrapping="Wrap" />
                    <TextBlock Text="{Binding Path=Distance, Mode=OneWay}" TextWrapping="Wrap" />
                    <TextBlock Text="{Binding Path=Description, Mode=OneWay}" TextWrapping="Wrap" />
                </StackPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

So if I dynamically add another TextBlock it should wrap automatically (I don't want to do it inside my code-behind file)

In other words - I'd like to write style that would be automatically applied. In CSS it would be something like that:

listbox textblock {
    word-wrap:break-word;
}

UPDATE

This contains my ListBox:

<Grid Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

        <!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Grid.Column="0" Margin="12,0,12,0">
            <views:ListItem Margin="12,6,0,0" />
        </Grid>
    </Grid>

Answer 1

Unless you specify a Width constraint for the TextBlock , it will not wrap its text content. As the StackPanel does not resize its contents, it will never pass any Width constraints to the TextBlock s inside and so they will never wrap. Setting the TextWrapping property to Wrap is not enough to make the text content wrap, so applying a Style with this property set will not do what you want.

Answer 2

Did you try adding a style for TextBlock ? Ie

<ListBox.ItemTemplate>
    <DataTemplate>
        <StackPanel>
            <StackPanel.Resources>
                <Style TargetType="TextBlock">
                    <Setter Property="TextWrapping" Value="Wrap"/>
                </Style>
            </StackPanel.Resources>
            ...
        </StackPanel>
    </DataTemplate>
</ListBox.ItemTemplate>