这是一个很好的实施示例Simplifying the WPF TreeView by Using the ViewModel Pattern http://blog.clauskonrad.net/2011/04/how-to-make-hierarchical-treeview.html.
这只是另一个样本,
您的型号:
public interface IFolder
{
string FullPath { get; }
string FolderLabel { get; }
ObservableCollection<IFolder> Folders { get; }
}
您的视图模型:
class ViewModel : INotifyPropertyChanged
{
public ViewModel()
{
m_folders = new ObservableCollection<IFolder>();
//add Root items
Folders.Add(new Folder { FolderLabel = "Dummy1", FullPath = @"C:\dummy1" });
Folders.Add(new Folder { FolderLabel = "Dummy2", FullPath = @"C:\dummy2" });
Folders.Add(new Folder { FolderLabel = "Dummy3", FullPath = @"C:\dummy3" });
Folders.Add(new Folder { FolderLabel = "Dummy4", FullPath = @"C:\dummy4" });
//add sub items
Folders[0].Folders.Add(new Folder { FolderLabel = "Dummy11", FullPath = @"C:\dummy11" });
Folders[0].Folders.Add(new Folder { FolderLabel = "Dummy12", FullPath = @"C:\dummy12" });
Folders[0].Folders.Add(new Folder { FolderLabel = "Dummy13", FullPath = @"C:\dummy13" });
Folders[0].Folders.Add(new Folder { FolderLabel = "Dummy14", FullPath = @"C:\dummy14" });
}
public string TEST { get; set; }
private ObservableCollection<IFolder> m_folders;
public ObservableCollection<IFolder> Folders
{
get { return m_folders; }
set
{
m_folders = value;
NotifiyPropertyChanged("Folders");
}
}
void NotifiyPropertyChanged(string property)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(property));
}
public event PropertyChangedEventHandler PropertyChanged;
}
In xaml:
<TextBlock Text="Simple root binding" Foreground="Red" Margin="10,10,0,0" />
<TreeView ItemsSource="{Binding Folders}" Margin="10">
<TreeView.ItemTemplate>
<DataTemplate>
<TreeViewItem Header="{Binding FolderLabel}"/>
</DataTemplate>
</TreeView.ItemTemplate>
</TreeView>
Full code http://blog.clauskonrad.net/2011/04/how-to-make-hierarchical-treeview.html