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LookUpEditBase.ItemsPanel Property

Gets or sets the template that defines the panel that controls the layout of items displayed within the editor’s dropdown. This is a dependency property.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v22.2.dll

NuGet Package: DevExpress.Wpf.Core


public ItemsPanelTemplate ItemsPanel { get; set; }

Property Value

Type Description

A ItemsPanelTemplate object that represents the panel to use for the layout of the items.


By default, the layout of items is defined by the DevExpress.Xpf.Core.DXVirtualizingStackPanel control with the enabled virtualization. In this instance, vertical scrolling is performed item by item. To activate per-pixel scrolling, do the following:

<dxe:ComboBoxEdit Name="cbEdit1"
                    Width="150" PopupHeight="100"

See the ItemsPanel topic for more information.


This example shows how to speed up the editor’s performance if it is bound to a large data source.

public MainWindow() {
    comboBoxEdit1.ItemsSource = GenerateData();

private List<string> GenerateData() {
    List<string> list = new List<string>();
    for (int i = 0; i < 2000; i++)
    return list;
See Also