共用方式為


TreeViewExpandingEventArgs 類別

定義

提供 TreeView.Expanding 事件的事件數據。

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
繼承
Object Platform::Object IInspectable TreeViewExpandingEventArgs
屬性
Microsoft.UI.Xaml.CustomAttributes.MUXContractPropertyAttribute MarshalingBehaviorAttribute VersionAttribute ContractVersionAttribute

範例

提示

如需詳細資訊、設計指引和程式代碼範例,請參閱 TreeView

WinUI 3 資源庫應用程式包含大部分 WinUI 3 控制件、特性和功能的互動式範例。 從 Microsoft Store 取得應用程式,或在 GitHub 上取得原始程式碼。

屬性

Item

取得展開之樹視圖節點的數據項。

Node

取得展開的樹視圖節點。

適用於

另請參閱