说到 List 控件，Windows Phone 8.1 上推荐使用的是 ListView 和 GridView。
而这两个控件实在太多东西可讲了，于是分成三篇来讲：
（2）分组数据
ListView 和 GridView 的最大差别就是：ListView 是一条条依序排列的，而 GridView 则是一块块依序排列的，因此
ListView 中的一项就会占据整整一行或者一列，而 GridView 的一项只会占据它应有的大小，一行或一列中可以放置多项。
而两者在其它方面上基本一致，因此下文只对 ListView 进行介绍，GridView 其实也一样的。
分组数据（GroupingData）
分组数据也就是将数据按首字母或自定义属性进行分组，然后用户就能通过点击首字母或自定义属性达到快速定位的目的：
构建过程：
（1）准备已分好组的数据
数据的分组可分为两类，一是根据项的首字母或拼音分组，二是根据项的自身属性分组。
1）首字母或拼音分组
public static List<AlphaKeyGroup<SampleItem>> GetAlphaGroupSampleItems()
{
ObservableCollection<SampleItem> data = new ObservableCollection<SampleItem>();
data.Add(new SampleItem() { Title = "k1", Content = "k1", Image = "ms-appx:/Images/k1.png", Group = "Kill La Kill" });
data.Add(new SampleItem() { Title = "w2", Content = "w2", Image = "ms-appx:/Images/w2.png", Group = "Wu Yu" });
data.Add(new SampleItem() { Title = "k3", Content = "k3", Image = "ms-appx:/Images/k3.png", Group = "Kill La Kill" });
data.Add(new SampleItem() { Title = "t4", Content = "t4", Image = "ms-appx:/Images/t4.png", Group = "Tiger" });
data.Add(new SampleItem() { Title = "t5", Content = "t5", Image = "ms-appx:/Images/t5.png", Group = "Tiger" });
data.Add(new SampleItem() { Title = "x6", Content = "x6", Image = "ms-appx:/Images/x6.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x7", Content = "x7", Image = "ms-appx:/Images/x7.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x8", Content = "x8", Image = "ms-appx:/Images/x8.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x9", Content = "x9", Image = "ms-appx:/Images/x9.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x10", Content = "x10", Image = "ms-appx:/Images/x10.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x11", Content = "x11", Image = "ms-appx:/Images/x11.png", Group = "Xi De Ni Ya" });List<AlphaKeyGroup<SampleItem>> groupData = AlphaKeyGroup<SampleItem>.CreateGroups(
data,
(SampleItem s) => { return s.Title; },
true);
return groupData;
}
AlphaKeyGroup 类为自己写的分组类：
public class AlphaKeyGroup<T>
{
const string GlobeGroupKey = "\uD83C\uDF10";public string Key { get; private set; }
public List<T> InternalList { get; private set; }
public AlphaKeyGroup(string key)
{
Key = key;
InternalList = new List<T>();
}private static List<AlphaKeyGroup<T>> CreateDefaultGroups(CharacterGroupings slg)
{
List<AlphaKeyGroup<T>> list = new List<AlphaKeyGroup<T>>();foreach( CharacterGrouping cg in slg )
{
if( cg.Label == "" )
continue;
if( cg.Label == "..." )
{
list.Add(new AlphaKeyGroup<T>(GlobeGroupKey));
}
else
{
list.Add(new AlphaKeyGroup<T>(cg.Label));
}
}return list;
}public static List<AlphaKeyGroup<T>> CreateGroups(IEnumerable<T> items, Func<T, string> keySelector, bool sort)
{
CharacterGroupings slg = new CharacterGroupings();
List<AlphaKeyGroup<T>> list = CreateDefaultGroups(slg);foreach( T item in items )
{
int index = 0;
{
string label = slg.Lookup(keySelector(item));
index = list.FindIndex(alphakeygroup => (alphakeygroup.Key.Equals(label, StringComparison.CurrentCulture)));
}if( index >= 0 && index < list.Count )
{
list[index].InternalList.Add(item);
}
}if( sort )
{
foreach( AlphaKeyGroup<T> group in list )
{
group.InternalList.Sort((c0, c1) => { return keySelector(c0).CompareTo(keySelector(c0)); });
}
}return list;
}
}
AlphaKeyGroup
2）自身属性分组
public static List<KeyedList<string, SampleItem>> GetKeyGroupSampleItems()
{
ObservableCollection<SampleItem> data = new ObservableCollection<SampleItem>();
data.Add(new SampleItem() { Title = "k1", Content = "k1", Image = "ms-appx:/Images/k1.png", Group = "Kill La Kill" });
data.Add(new SampleItem() { Title = "w2", Content = "w2", Image = "ms-appx:/Images/w2.png", Group = "Wu Yu" });
data.Add(new SampleItem() { Title = "k3", Content = "k3", Image = "ms-appx:/Images/k3.png", Group = "Kill La Kill" });
data.Add(new SampleItem() { Title = "t4", Content = "t4", Image = "ms-appx:/Images/t4.png", Group = "Tiger" });
data.Add(new SampleItem() { Title = "t5", Content = "t5", Image = "ms-appx:/Images/t5.png", Group = "Tiger" });
data.Add(new SampleItem() { Title = "x6", Content = "x6", Image = "ms-appx:/Images/x6.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x7", Content = "x7", Image = "ms-appx:/Images/x7.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x8", Content = "x8", Image = "ms-appx:/Images/x8.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x9", Content = "x9", Image = "ms-appx:/Images/x9.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x10", Content = "x10", Image = "ms-appx:/Images/x10.png", Group = "Xi De Ni Ya" });
data.Add(new SampleItem() { Title = "x11", Content = "x11", Image = "ms-appx:/Images/x11.png", Group = "Xi De Ni Ya" });var groupedItems = from item in data
orderby item.Group
group item by item.Group into itemsByGroup
select new KeyedList<string, SampleItem>(itemsByGroup);
return groupedItems.ToList();
}
KeyedList 为自己编写的类：
public class KeyedList<TKey, TItem>: List<TItem>
{
public TKey Key { protected set; get; }public IEnumerable<TItem> InternalList { protected set; get; }
public KeyedList(TKey key, IEnumerable<TItem> items)
: base(items)
{
Key = key;
InternalList = items;
}public KeyedList(IGrouping<TKey, TItem> grouping)
: base(grouping)
{
Key = grouping.Key;
InternalList = grouping;
}
}
KeyedList
（2）插入 CollectionViewSource
<Page.Resources>
<CollectionViewSource x:Key="ItemsGrouped"
IsSourceGrouped="True"
ItemsPath="InternalList"
Source="{Binding GroupData, Source={Binding}}"/>
</Page.Resources>
这里的 GroupData 即为第一步中准备好的已分组的数据。
然后将 ListView 的 ItemsSource 绑定为
CollectionViewSources：
<ListView ItemsSource="{Binding Source={StaticResource ItemsGrouped}}"/>
（3）编写 ListView 的 GroupStyle.HeaderTemplate
GroupStyle.HeaderTemplate 也就是 ListView
里每一组的标题的模板，可自由定义：
<ListView.GroupStyle>
<GroupStyle HidesIfEmpty="True" >
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Border Background="{StaticResource PhoneAccentBrush}"
BorderBrush="{StaticResource PhoneAccentBrush}"
BorderThickness="2"
Width="62" Height="62" Margin="0,0,18,0"
HorizontalAlignment="Stretch">
<TextBlock Text="{Binding Key}"
Foreground="{StaticResource PhoneForegroundBrush}"
FontSize="48"
Padding="6"
FontFamily="{StaticResource PhoneFontFamilySemiLight}"
HorizontalAlignment="Left"
VerticalAlignment="Center"/>
</Border>
</DataTemplate>
</GroupStyle.HeaderTemplate>
</GroupStyle>
</ListView.GroupStyle>
（4）将 ListView 放入 SemanticZoom 里
到目前为止，ListView 已经能正常将分组数据显示在页面上了，最后一步也就是将 ListView
放入 SemanticZoom 控件中。
<SemanticZoom>
<SemanticZoom.ZoomedInView>
<!-- 前三步写好的 ListView -->
</SemanticZoom.ZoomedInView>
<SemanticZoom.ZoomedOutView>
<!-- 缩放后的跳转界面 -->
<GridView ItemsSource="{Binding Source={StaticResource ItemsGrouped}, Path=CollectionGroups}"
Background="#AA000000">
<GridView.ItemTemplate>
<DataTemplate>
<Border Background="{Binding Converter={StaticResource BackgroundConverter}}"
Padding="5">
<Border Background="{Binding}"
Width="82" Height="82"
HorizontalAlignment="Left">
<TextBlock Text="{Binding Group.Key}"
Foreground="{Binding Converter={StaticResource ForegroundConverter}}"
FontSize="48"
Padding="6"
HorizontalAlignment="Left" VerticalAlignment="Center"/>
</Border>
</Border>
</DataTemplate>
</GridView.ItemTemplate>
</GridView>
</SemanticZoom.ZoomedOutView>
</SemanticZoom>
其中的两个 Converter 是对分组中有无该项的区分显示：
<Page
x:Class="ListControls.GroupListViewPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:ListControls"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:prim="using:Windows.UI.Xaml.Controls.Primitives"
mc:Ignorable="d"
DataContext="{Binding DefaultViewModel, RelativeSource={RelativeSource Self}}"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"><Page.Resources>
<prim:JumpListItemBackgroundConverter x:Key="BackgroundConverter"/>
<prim:JumpListItemForegroundConverter x:Key="ForegroundConverter"/>
</Page.Resources></Page
Convertor
Windows Phone 8.1 列表控件（2）：分组数据