| | | | Обработка событий: Expanded, DoubleClick | | xaml | <TreeView
Name="ElementsTreeView"
ItemsSource="{Binding Path=Root}"
TreeViewItem.Expanded="ElementsTreeView_Expanded"
TreeViewItem.MouseDoubleClick="ElementsTreeView_MouseDoubleClick">
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Path=Childs}">
<StackPanel Orientation="Horizontal">
<!--item template-->
</StackPanel>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView> | | code | private async void ElementsTreeView_Expanded(object sender, RoutedEventArgs e)
{
var item = (TreeViewItem)e.OriginalSource;
var node = item.DataContext as IViewModelItem;
//...
}
private async void ElementsTreeView_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
IViewModelItem node = null;
if (sender is TreeView treeView)
{
if (treeView.SelectedItem is IViewModelItem viewNode)
{
node = viewNode;
}
}
//...
} | | | |
|