TreeViewExpandingEventArgs Class

Reference

Definition

Namespace:: Windows.UI.Xaml.Controls

Important

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Provides event data for the TreeView.Expanding event.

Equivalent WinUI 2 API for UWP: Microsoft.UI.Xaml.Controls.TreeViewExpandingEventArgs (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

public ref class TreeViewExpandingEventArgs sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 393216)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class TreeViewExpandingEventArgs final

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 393216)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class TreeViewExpandingEventArgs final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 393216)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class TreeViewExpandingEventArgs

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 393216)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class TreeViewExpandingEventArgs

Public NotInheritable Class TreeViewExpandingEventArgs

Inheritance: Object Platform::Object IInspectable TreeViewExpandingEventArgs

Attributes: ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows requirements

Device family	Windows 10, version 1803 (introduced in 10.0.17134.0)
API contract	Windows.Foundation.UniversalApiContract (introduced in v6.0)

Remarks

Version history

Windows version	SDK version	Value added
1809	17763	Item

Properties

Item

Gets the data item for the tree view node that is expanding.

Equivalent WinUI 2 API for UWP: Microsoft.UI.Xaml.Controls.TreeViewExpandingEventArgs.Item (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

Node

Gets the tree view node that is expanding.

Equivalent WinUI 2 API for UWP: Microsoft.UI.Xaml.Controls.TreeViewExpandingEventArgs.Node (for WinUI in the Windows App SDK, see the Windows App SDK namespaces).

Applies to

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