There was a question about this on the ASP.NET forums and after a quick search I didn't find a good generic function so I thought I'd supply one.
Note: I wanted this to be as broad and useful as possible, so the second parameter is a
ListControl which both the
DropDownList inherit from.
I also made sure the function would handle
enums that had non-contiguous values that didn't necessarily start at zero.
static public void EnumToListBox(Type EnumType, ListControl TheListBox)
Array Values = System.Enum.GetValues(EnumType);
foreach (int Value in Values)
string Display = Enum.GetName(EnumType, Value);
ListItem Item = new ListItem(Display, Value.ToString());
I tested with an existing
enum and a custom
BLACK = -1,
RED = 7,
GREEN = 14,
UNKNOWN = -13
protected void Button1_Click(object sender, EventArgs e)
Note: I initially tried to get the order of the items in the
ListBox to match the order of the items in the
enum but both the
Enum.GetNames functions return the items sorted by the value of the
enum. So if you want the
enums sorted a certain way, the values of the
enums must be sorted that way. I think this is reasonable; how the
enums are physically sorted in the source code shouldn't necessarily have any meaning.
I hope someone finds this useful.