8,734
社区成员
发帖
与我相关
我的任务
分享
<!--Expander内容模板开始-->
<controlsToolkit:Expander.ContentTemplate>
<DataTemplate>
<StackPanel HorizontalAlignment="Left">
<ListBox x:Name="lsbNodeList" Margin="5" MinHeight="100" MinWidth="100" Opacity="0" >
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=AreaName}" Margin="5" Width="100" />
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
</DataTemplate>
</controlsToolkit:Expander.ContentTemplate>
<!--Expander内容模板结束-->
public ObservableCollection<TravelNode> travlnodes = new ObservableCollection<TravelNode>();
public class TravelNode : INotifyPropertyChanged
{
private string _areaname;
public TravelNode(string areaname)
{
this.AreaName = areaname;
}
public string AreaName
{
get
{
return _areaname;
}
set
{
if (string.Compare(_areaname, value) == 0) return;
_areaname = value;
OnPropertyChanged("AreaName");
}
}
protected virtual void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null) PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
#region INotifyPropertyChanged 成员
public event PropertyChangedEventHandler PropertyChanged;
#endregion
}
private void MainPage_Loaded(object sender, RoutedEventArgs e)
{
travlnodes.Add(new TravelNode("wgewgwg"));
travlnodes.Add(new TravelNode("wgewgwewgwg"));
travlnodes.Add(new TravelNode("wgewgwg"));
travlnodes.Add(new TravelNode("wgewegwegwgwg"));
travlnodes.Add(new TravelNode("wgewjjgwg"));
travlnodes.Add(new TravelNode("wgerjjwgwg"));
travlnodes.Add(new TravelNode("wgetrjwgwg"));
travlnodes.Add(new TravelNode("wehewhwhhmt"));
List<ListBox> lbs = this.GetChildObjects<ListBox>(this.sampleExpander.ContentTemplate.LoadContent(), "");
if (lbs.Count > 0)
{
lbs[0].ItemsSource = travlnodes;
}
}
/// <summary>
/// 查询指定的子控件,name 为空所有子控件
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="obj"></param>
/// <param name="name"></param>
/// <returns></returns>
public List<T> GetChildObjects<T>(DependencyObject obj, string name) where T : FrameworkElement
{
DependencyObject child = null;
List<T> childList = new List<T>();
for (int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++)
{
child = VisualTreeHelper.GetChild(obj, i);
if (child is T && (((T)child).Name == name || string.IsNullOrEmpty(name)))
{
childList.Add((T)child);
}
childList.AddRange(GetChildObjects<T>(child, ""));
}
return childList;
}