绑定枚举（列表）的最佳方法是什么 <Enum> ）到DropDownList？

Question

If I have the following enum

enum RequestStatus
    {
        Open = 1,
        InProgress = 4,
        Review = 7,
        Accepted = 11,
        Rejected = 12,
        Closed = 23
    }

and we have the following List

List<RequestStatus> nextStatus = new List<RequestStatus>();
nextStatus.Add(RequestStatus.Review);
nextStatus.Add(RequestStatus.InProgress);

If we want to bind nextStatus to dropDownList we do it as belllow

foreach (RequestStatus req in nextStatus)
    dropDownList.Items.Add(new ListItem(req.ToString(), ((int)req).ToString()));

Is there any other best way to do this bind ?

Answer 1

Binding is setting a data source and bindings, not adding items to a list, what you are looking for is (assuming this is ASP.NET Forms here):

dropdownlist.DataSource = Enum.GetNames(typeof(RequestStatus))
dropdownlist.DataBind();

That being said, I think this is pretty poor user friendliness as I certainly would not care to see "InProgress" in a dropdown. I think it would be more appropriate to store this data with a ID/Name/Key and DisplayName combo somewhere and then bind the ID and DisplayName like so:

var items = new[] {{ID = "Review", DisplayName = "Review"}, {ID = "InProgress", DisplayName="In Progress"}};
dropdownlist.DataSource = items;
dropdownlist.DataValueField = "ID";
dropdownlist.DataTextField = "DislayName";
dropdownlist.DataBind();

To clarify I am not advocating to hardcode this list and would probably load this from DB and cache, but I really can only guess at your requirements here.