TreeView.ItemsSource Property

Definition

Namespace:

Microsoft.UI.Xaml.Controls

Gets or sets an object source used to generate the content of the TreeView.

public:
 property Platform::Object ^ ItemsSource { Platform::Object ^ get(); void set(Platform::Object ^ value); };

/// [Microsoft.UI.Xaml.CustomAttributes.MUXPropertyChangedCallback(enable=true)]
/// [get: Microsoft.UI.Xaml.CustomAttributes.MUXPropertyChangedCallback(enable=true)]
/// [set: Microsoft.UI.Xaml.CustomAttributes.MUXPropertyChangedCallback(enable=true)]
IInspectable ItemsSource();

void ItemsSource(IInspectable value);

[Microsoft.UI.Xaml.CustomAttributes.MUXPropertyChangedCallback(enable=true)]
public object ItemsSource { [Microsoft.UI.Xaml.CustomAttributes.MUXPropertyChangedCallback(enable=true)] get; [Microsoft.UI.Xaml.CustomAttributes.MUXPropertyChangedCallback(enable=true)] set; }

var object = treeView.itemsSource;
treeView.itemsSource = object;

Public Property ItemsSource As Object

<TreeView ItemsSource="bindingDeclaration"/>
-or-
<TreeView ItemsSource="resourceReferenceToSource"/>

Property Value

Object

Platform::Object

IInspectable

The object that is used to generate the content of the TreeView. The default is null.

Attributes

Microsoft.UI.Xaml.CustomAttributes.MUXPropertyChangedCallbackAttribute

Remarks

The ItemsSource property value must implement one of these interfaces:

C++	.NET
IIterable<IInspectable>	IEnumerable<Object>
IBindableIterable	IEnumerable

The ItemsControl can provide better performance if the ItemsSource property value also implements a random-access list interface:

C++	.NET
IVector<IInspectable>	IList<Object>
IVectorView<IInspectable>	IReadOnlyCollection<Object>
IBindableVector	IList
IBindableVectorView	IList

The ItemsControl can respond to changes if the ItemsSource property value also implements a change notification interface:

C++	.NET
IObservableVector<IInspectable>	INotifyCollectionChanged