TreeViewExpandingEventArgs 类

定义

TreeView.Expanding 事件提供事件数据。

本文档适用于Windows 应用 SDK中适用于 UWP 的 WinUI 2 (,请参阅Windows 应用 SDK命名空间)

public ref class TreeViewExpandingEventArgs sealed
/// [Microsoft.UI.Xaml.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.Version(1)]
/// [Microsoft.UI.Xaml.CustomAttributes.MUXContractProperty(version=6)]
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.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.Version(1)]
[Microsoft.UI.Xaml.CustomAttributes.MUXContractProperty(version=6)]
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.MUXContractPropertyAttribute MarshalingBehaviorAttribute VersionAttribute Microsoft.UI.Xaml.CustomAttributes.MUXContractPropertyAttribute ContractVersionAttribute

示例

提示

有关详细信息、设计指南和代码示例,请参阅 TreeView

WinUI 3 库和 WinUI 2 库应用包括大多数 WinUI 3 和 WinUI 2 控件、特性和功能的交互式示例。

如果已安装,请单击以下链接将其打开:WinUI 3 库WinUI 2 库

如果未安装,可以从 Microsoft Store 下载 WinUI 3 库WinUI 2 库

还可以从 GitHub 获取这两种应用的源代码(对 WinUI 3 使用 main 分支,对 WinUI 2 使用 winui2 分支)。

属性

Item

获取正在展开的树视图节点的数据项。

本文档适用于Windows 应用 SDK中适用于 UWP 的 WinUI 2 (,请参阅Windows 应用 SDK命名空间)

Node

获取正在展开的树视图节点。

本文档适用于Windows 应用 SDK中适用于 UWP 的 WinUI 2 (,请参阅Windows 应用 SDK命名空间)

适用于

另请参阅