public enum formatItems
{
    None = 0,
    Scientific = 1,
    FloatingPoint = 2,
    Integer = 3,
    Date = 4,
    Time = 5,
    DateTime = 6,
    gpsLong = 7,
    gpsLat = 8
}

   // use List Collection from LoadEnums to populate dropdown
       public void PopulateFormatDropDown(DropDownList ddl)
       //public void PopulateFormatDropDown(DropDownList ddl, Enum formatList)
       {
           ddl.Items.Clear();

           //create List<string> to hold the ddl items
           List<string> csv = LoadEnumsforFormat();

           // loop though all the items in the collection
           // add each item to the list
           for (int i = 0; i < csv.Count; i++)
           {
               ListItem item = new ListItem(csv[i].ToString());
               ddl.Items.Insert(i, item);
           }

           //now we need to add a{Select One]" option at beginning of list
           //ddl.Items.Insert(0, "[Select One]");
       }

       // Handle event when user changes scale selection
       public void DropDownList1_OnSelectedIndexChanged(object sender, EventArgs e)
       {
           if (IsPostBack == true)
           {
           
               DropDownList DropDownList1 = (DropDownList)Page.FindControl("DropDownList1");
               DropDownList1.Items.FindByValue(DropDownList1.SelectedValue).Selected = true;

           }
       }

string[] labels = definitionLabels.ToArray();

  DropDownList DropDownList4 = (DropDownList)Page.FindControl("DropDownList4");

          for (int j = 0; j < ((labels.Length) - 1); j++)
          {
               ListItem item = new ListItem(labels[j].ToString());
               DropDownList4.Items.Insert(j,item);
          }