using System.Collections.ObjectModel; using CommunityToolkit.Mvvm.ComponentModel; namespace Ursa.Demo.ViewModels; public class MultiComboBoxDemoViewModel: ObservableObject { public ObservableCollection Items { get; set; } public MultiComboBoxDemoViewModel() { Items = new ObservableCollection() { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5", "Item 6", "Item 7", "Item 8", "Illinois", "Indiana", "Iowa", "Kansas", "Kentucky", "Louisiana", "Maine", "Maryland", "Massachusetts", "Michigan", "Minnesota", "Mississippi", "Missouri", "Montana", "Nebraska", "Nevada", "New Hampshire", "New Jersey", "New Mexico", "New York", "North Carolina", "North Dakota", "Ohio", "Oklahoma", "Oregon", "Pennsylvania", "Rhode Island", }; } }