我遇到麻烦将可观察的集合绑定到树视图这里是我的代码,似乎是100%准确但不起作用。目的是能够点击专辑或歌曲,然后在相应的歌曲信息/专辑信息选项卡中显示信息。
此刻我甚至无法将相册名称绑定到树视图...更不用说包含歌曲的子组(如果专辑包含任何内容(专辑1)
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="203" Width="524.579">
<Grid Margin="0,0,0,12">
<TreeView x:Name="AlbumListTree"
HorizontalAlignment="Left"
ItemsSource="{Binding abumList}" >
<TreeView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding AlbumName}" />
</DataTemplate>
</TreeView.ItemTemplate>
</TreeView>
<TabControl HorizontalAlignment="Left" Height="141" Margin="191,10,0,0" VerticalAlignment="Top" Width="186">
<TabItem Header="Album Info">
<Grid Background="#FFE5E5E5">
<Label x:Name="AlbumName" HorizontalAlignment="Left" Height="33" Margin="10,10,0,0" VerticalAlignment="Top" Width="130"/>
<Label x:Name="AlbumRelease" HorizontalAlignment="Left" Height="32" Margin="10,48,0,0" VerticalAlignment="Top" Width="130"/>
</Grid>
</TabItem>
<TabItem Header="Song Info">
<Grid Background="#FFE5E5E5">
<Label x:Name="name" HorizontalAlignment="Left" Height="33" Margin="10,10,0,0" VerticalAlignment="Top" Width="130"/>
<Label x:Name="artist" HorizontalAlignment="Left" Height="32" Margin="10,48,0,0" VerticalAlignment="Top" Width="130"/>
<Label x:Name="lenghtinSec" HorizontalAlignment="Left" Height="32" Margin="10,68,0,0" VerticalAlignment="Top" Width="130"/>
</Grid>
</TabItem>
</TabControl>
</Grid>
</Window>
这是我的歌曲课程
namespace WpfApplication1
{
public class Song
{
public string artist;
public string name;
public int lenghtinSec;
public override string ToString()
{
return "" + name;
}
public Song(string f, string l, int lis)
{
name = l;
artist = f;
lenghtinSec = lis;
}
}
}
这是我的专辑类
namespace WpfApplication1
{
public class Album
{
public string AlbumName;
public string AlbumRelease;
ObservableCollection<Song> songsAlbum;
public override string ToString()
{
return AlbumName;
}
public Album(String a, String b, ObservableCollection<Song> c)
{
AlbumName = a;
AlbumRelease = b;
songsAlbum = c;
}
public static ObservableCollection<Album> GetAlbumList()
{
return new ObservableCollection<Album>()
{
new Album("Get Rich ","Sept 4", new ObservableCollection<Song>{new Song("50 Cent ","In Da Club",155),
new Song("Eminem","Without Me",332),
new Song("Meek Mill","Dreams & Nightmares",213)}),
new Album("Shady Records","Sept 14",new ObservableCollection<Song>{})
};
}
}
}
最后是我的C#
namespace WpfApplication1
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.Loaded += MainWindow_Loaded;
}
public ObservableCollection<Album> albumList { get; set; }
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
albumList = Album.GetAlbumList();
AlbumListTree.DataContext = albumList;
}
private void AlbumListTree_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
Album selectedAlbum = (Album)AlbumList.SelectedItem;
AlbumName.Content = selectedAlbum.AlbumName;
AlbumRelease.Content = selectedAlbum.AlbumRelease;
}
}
}