Hi Frank,

You can create ObservableCollection< > or List< > instance from the enum, and bind your combo to it. Below is a sample.

XAML

< Window x:Class="ComboboxToEnumBinding.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    
    < Grid>
        < ComboBox HorizontalAlignment="Center" 
                  VerticalAlignment="Center" 
                  Width="180" 
                  ItemsSource="{Binding AvailableOptions}" 
                  SelectedValue="{Binding SelectedOption}" />
    < /Grid>
< /Window>

Code-behind:

namespace ComboboxToEnumBinding
{
    using System;
    using System.Collections.ObjectModel;

    public enum OptionsEnum
    {
        Standard = 1,
        Mail = 2,
        ZipX = 3
    }

    public partial class MainWindow
    {
        private OptionsEnum _selectedOption = OptionsEnum.Standard;

        private ObservableCollection<OptionsEnum> _availableOptions;

        public ObservableCollection<OptionsEnum> AvailableOptions
        {
            get
            {
                if (this._availableOptions == null)
                {
                    this._availableOptions = new ObservableCollection<OptionsEnum>();
                    foreach (OptionsEnum option in Enum.GetValues(typeof(OptionsEnum)))
                    {
                        this._availableOptions.Add(option);
                    }
                }

                return this._availableOptions;
            }

            set
            {
                this._availableOptions = value;
            }
        }

        public OptionsEnum SelectedOption
        {
            get
            {
                return this._selectedOption;
            }

            set
            {
                this._selectedOption = value;
            }
        }

        public MainWindow()
        {
            InitializeComponent();
            this.DataContext = this;
        }
    }
}