datagridview - DataGridView中的枚举描述

Question

我有一个枚举说明问题。
我希望dataGrid向我显示枚举说明，而不是枚举的“ToString()”。

enum DirectionEnum
{
    [Description("Right to left")]
    rtl,

    [Description("Left to right")]
    ltr
}
class Simple
{
    [DisplayName("Name")]
    public string Name { get; set; }

    [DisplayName("Direction")]
    public DirectionEnum dir { get; set; }
}
class DirectionDialog : Form
{
    public DirectionDialog()
    {
        DataGridView table = new DataGridView();
        List<Simple> list = new List<Simple>(new Simple[]{ 
            new Simple{ Name = "dave", dir = DirectionEnum.ltr}, 
            new Simple{ Name = "dan", dir = DirectionEnum.rtl }
        });
        table.DataSource = list;
        //view "rtl" or "ltr" in "Direction"
        //I want "Right to left" or "Left to right:
    }
}

我想通过枚举的说明查看“方向”列。
我在做什么
对不起，我的英语不好。

Answer 1

class Simple
{
    [DisplayName("Name")]
    public string Name { get; set; }

    // Remove external access to the enum value
    public DirectionEnum dir { private get; set; }

    // Add a new string property for the description
    [DisplayName("Direction")]
    public string DirDesc
    {
        get
        {
            System.Reflection.FieldInfo field = dir.GetType().GetField(dir.ToString());

            DescriptionAttribute attribute
                    = Attribute.GetCustomAttribute(field, typeof(DescriptionAttribute))
                        as DescriptionAttribute;

            return attribute == null ? dir.ToString() : attribute.Description;
        }
    }
}