Исходный код вики TreeView

Редактировал(а) Alexandr Fokin 2024/09/15 12:07

version	line-number	content
1.4	1	\| \|TreeView
1.2	2	\| \|(((
1.4	3	\| \|Обработка событий: Expanded, DoubleClick
1.3	4	\|xaml\|{{code language="xml"}}<TreeView
1.2	5	Name="ElementsTreeView"
	6
	7	ItemsSource="{Binding Path=Root}"
	8	TreeViewItem.Expanded="ElementsTreeView_Expanded"
	9	TreeViewItem.MouseDoubleClick="ElementsTreeView_MouseDoubleClick">
	10
	11	<TreeView.ItemTemplate>
	12	<HierarchicalDataTemplate ItemsSource="{Binding Path=Childs}">
	13	<StackPanel Orientation="Horizontal">
	14
	15	<!--item template-->
	16
	17	</StackPanel>
	18	</HierarchicalDataTemplate>
	19	</TreeView.ItemTemplate>
	20
	21	</TreeView>{{/code}}
1.3	22	\|code\|{{code language="c#"}}private async void ElementsTreeView_Expanded(object sender, RoutedEventArgs e)
1.2	23	{
	24	var item = (TreeViewItem)e.OriginalSource;
1.5	25	var node = item.DataContext as IViewModelItem;
1.2	26
	27	//...
	28	}
	29
	30	private async void ElementsTreeView_MouseDoubleClick(object sender, MouseButtonEventArgs e)
	31	{
1.5	32	IViewModelItem node = null;
1.2	33
	34	if (sender is TreeView treeView)
	35	{
1.5	36	if (treeView.SelectedItem is IViewModelItem viewNode)
1.2	37	{
	38	node = viewNode;
	39	}
	40	}
1.3	41
	42	//...
1.2	43	}{{/code}}
1.3	44	\| \|
1.2	45
	46
	47	)))
	48	\| \|

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