private void InitializeComponent()
{
AvaloniaXamlLoader.Load(this);
tree = this.FindControl <Avalonia.Controls.TreeView>("tree");
tree.DoubleTapped += ShowStateAfter_Click;
tree.KeyDown += tree_KeyDown;
// var items = tree.ContextMenu.Items.Cast<MenuItem>().ToList();
tree.FindControl <MenuItem>("ShowStateBefore").Click += ShowStateBefore_Click;
tree.FindControl <MenuItem>("ShowStateAfter").Click += ShowStateAfter_Click;
tree.FindControl <MenuItem>("DebugStep").Click += DebugStep_Click;
}
private void InitializeComponent()
{
AvaloniaXamlLoader.Load(this);
tree = this.FindControl <Avalonia.Controls.TreeView>("tree");
}
/// <inheritdoc/>
protected override void OnAttachedToLogicalTree(LogicalTreeAttachmentEventArgs e)
{
base.OnAttachedToLogicalTree(e);
_treeView = this.GetLogicalAncestors().OfType<TreeView>().FirstOrDefault();
if (ItemTemplate == null && _treeView?.ItemTemplate != null)
{
ItemTemplate = _treeView.ItemTemplate;
}
}
public void TreeView_Is_Freed()
{
using (UnitTestApplication.Start(TestServices.StyledWindow))
{
Func<Window> run = () =>
{
var nodes = new[]
{
new Node
{
Children = new[] { new Node() },
}
};
TreeView target;
var window = new Window
{
Content = target = new TreeView
{
DataTemplates = new DataTemplates
{
new FuncTreeDataTemplate<Node>(
x => new TextBlock { Text = x.Name },
x => x.Children)
},
Items = nodes
}
};
// Do a layout and make sure that TreeViewItems get realized.
LayoutManager.Instance.ExecuteInitialLayoutPass(window);
Assert.Equal(1, target.ItemContainerGenerator.Containers.Count());
// Clear the content and ensure the TreeView is removed.
window.Content = null;
LayoutManager.Instance.ExecuteLayoutPass();
Assert.Null(window.Presenter.Child);
return window;
};
var result = run();
PurgeMoqReferences();
dotMemory.Check(memory =>
Assert.Equal(0, memory.GetObjects(where => where.Type.Is<TreeView>()).ObjectsCount));
}
}
private void InitializeComponent()
{
AvaloniaXamlLoader.Load(this);
_tree = this.FindControl<TreeView>("tree");
}