TreeListNodeFilterEventArgs.Handled Property

Gets or sets whether custom filtering is handled and no default processing is required.

Namespace: DevExpress.Xpf.Grid.TreeList

Assembly: DevExpress.Xpf.Grid.v19.2.dll

Declaration

C#

public bool Handled { get; set; }

VB.NET

Public Property Handled As Boolean

Property Value

Type	Description
Boolean	true if custom filtering is handled; otherwise false.

Remarks

To hide or show a node, specify the TreeListNodeFilterEventArgs.Visible property, and set the Handled property to true. If the Handled property is set to false, the node’s visibility is determined by the filter currently applied to a View. So, the node will only be visible if it matches the View’s filter. Otherwise, it will be hidden.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Handled property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-synchronize-the-dxtreelist-with-the-icollectionview-collectionviewsource-e3238/CS/TreeListControlViewModel/TreeListControlDataModel.cs#L218

    e.Visible = CollectionView.Filter(e.Node.Content);
    e.Handled = true;
}

VB.NET

how-to-get-visible-items-in-viewmodel-when-working-with-treelistview-e4152/VB/FilteredData/MainWindow.xaml.vb#L20

    End If
    e.Handled = True
End Sub

how-to-synchronize-the-dxtreelist-with-the-icollectionview-collectionviewsource-e3238/VB/TreeListControlViewModel/TreeListControlDataModel.vb#L253

    e.Visible = CollectionView.Filter(e.Node.Content)
    e.Handled = True
End Sub