TreeViewExpandingEventArgs 类

  • 参考

定义

命名空间:
Microsoft.UI.Xaml.Controls
编辑

为 TreeView.Expanding 事件提供事件数据。

public ref class TreeViewExpandingEventArgs sealed
/// [Microsoft.UI.Xaml.CustomAttributes.MUXContractProperty(version=6)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Version(1)]
class TreeViewExpandingEventArgs final
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.ContractVersion(Microsoft.UI.Xaml.XamlContract, 65536)]
class TreeViewExpandingEventArgs final
[Microsoft.UI.Xaml.CustomAttributes.MUXContractProperty(version=6)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Version(1)]
public sealed class TreeViewExpandingEventArgs
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.ContractVersion(typeof(Microsoft.UI.Xaml.XamlContract), 65536)]
public sealed class TreeViewExpandingEventArgs
Public NotInheritable Class TreeViewExpandingEventArgs
继承
Object Platform::Object IInspectable TreeViewExpandingEventArgs
属性
Microsoft.UI.Xaml.CustomAttributes.MUXContractPropertyAttribute MarshalingBehaviorAttribute VersionAttribute ContractVersionAttribute

示例

提示

有关详细信息、设计指南和代码示例，请参阅 TreeView。

打开 WinUI 3 库应用，查看树视图的实际应用。

WinUI 3 库应用包括大多数 WinUI 3 控件、特性和功能的交互式示例。 通过 Microsoft Store 获取应用，或在 GitHub 上获取源代码。

属性

Item

获取正在展开的树视图节点的数据项。
Node

获取正在展开的树视图节点。

适用于

另请参阅