ByteEnumerationExtention.cs

/*
    Sample of use:
    <ComboBox ItemsSource="{Binding Source={ Extensions:ByteEnumerationExtention {x:Type type:MyEnum} }}"  DisplayMemberPath="Description"
            SelectedValuePath="Value" SelectedValue="{Binding SelectedItemInViewModel}"/>

    public enum MyEnum : short
    {
        [Description("گزینه 1")]
        Item1 = 1,
        
        [Description("گزینه 2")]
        Item2 = 2
    }
*/

public class ByteEnumerationExtention : MarkupExtension
{
	public ByteEnumerationExtention(Type enumType)
	{
		this.enumType = enumType;
	}

	private Type enumType;

	public Type EnumType
	{
		get { return enumType; }
		private set
		{
			enumType = value;
		}
	}

	public override object ProvideValue(IServiceProvider serviceProvider)
	{
		return (from x in Enum.GetValues(EnumType).OfType<Enum>()
				select new EnumerationMember
				{
					Value = GetValue(x),
					Description = GetDescription(x)
				}).ToArray();
	}

	private byte? GetValue(object enumValue)
	{
		return Convert.ToByte(enumValue.GetType().GetField("value__").GetValue(enumValue));
	}

	public object GetObjectValue(object enumValue)
	{
		return enumValue.GetType().GetField("value__").GetValue(enumValue);
	}

	public string GetDescription(object enumValue)
	{
		var descAttrib = EnumType.GetField(enumValue.ToString())
			.GetCustomAttributes(typeof(DescriptionAttribute), false)
			.FirstOrDefault() as DescriptionAttribute;
		return descAttrib != null ? descAttrib.Description : enumValue.ToString();
	}
}
 
public class EnumerationMember
{
	public string Description { get; set; }

	public byte? Value { get; set; }
}