LongListSelector Windows Phone 8.1

我想在Windows Phone 8.1中开发类似Longlist Selector Wp8的布局。

我遇到了一个问题,我的名单没有出现。

XAML页面

<Grid > <Grid.Resources> <CollectionViewSource x:Name="MainGrps" IsSourceGrouped="True"/> </Grid.Resources> <ListView ItemsSource="{Binding Source={StaticResource MainGrps}}" Margin="50"> <ListView.ItemTemplate> <DataTemplate > <Grid Background="Gray"> <StackPanel> <TextBlock Foreground="White" FontSize="20" Text="{Binding ItmName}"/> <TextBlock Foreground="White" FontSize="20" Text="{Binding ItmType}"/> </StackPanel> </Grid> </DataTemplate> </ListView.ItemTemplate> <ListView.GroupStyle> <GroupStyle HidesIfEmpty="True" > <GroupStyle.HeaderTemplate> <DataTemplate > <Grid Background="Red"> <StackPanel Orientation="Horizontal" > <TextBlock Text="{Binding GrpItmName}" Foreground="White"/> <TextBlock Text="{Binding ItemsCount}" Foreground="White"/> </StackPanel> </Grid> </DataTemplate> </GroupStyle.HeaderTemplate> </GroupStyle> </ListView.GroupStyle> </ListView> </Grid> 

代码背后:

 private void OnPageLoaded(object sender, RoutedEventArgs e) { lst_grp = new List<Grp>(); for (int i = 0; i < 10; i++) { Grp grp = new Grp(); grp.GrpItmName = "grp name " + i; grp.ItemsCount = i; grp.LstItms = new List<Itm>(); Itm itm = new Itm(); itm.ItmName = "itm name " + i; itm.ItmType = "itm type " + i; grp.LstItms.Add(itm); grp.LstItms.Add(itm); grp.LstItms.Add(itm); lst_grp.Add(grp); } this.MainGrps.Source = lst_grp; } 

上面的代码有问题吗?

请帮我弄明白,或build议你是否有工作代码。

Solutions Collecting From Web of "LongListSelector Windows Phone 8.1"

更改

 <GroupStyle HidesIfEmpty="True" > 

至:

 <GroupStyle HidesIfEmpty="False" > 

尝试在ListView标记内的XAML中添加它:

 HorizontalAlignment="Stretch" VerticalAlignment="Stretch" 

或者尝试手动设置ListView的宽度和高度参数..只是试图..

让我知道!