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Here is how you do it.

   20     private enum ReportTypes : int

   21     {

   22         ByVendor = 1,

   23         ByCategory = 2,

   24         ByType = 3

   25     }
   35     protected void Page_Load(object sender, EventArgs e)

   36     {

   37         if (!IsPostBack)

   38         {

   44             ddlReportTypes.DataSource = Enum.GetNames(typeof(ReportTypes));
   45             ddlReportTypes.DataBind();

   46         }

   47     }

   48     protected void ddlReportTypes_SelectedIndexChanged(object sender, EventArgs e)

   49     {

   50         ReportTypes rType =

   51             (ReportTypes)Enum.Parse(typeof(ReportTypes), ddlReportTypes.SelectedValue);

   52         switch (rType)

   53         {

   54             case ReportTypes.ByVendor:

   56                 break;

   57             case ReportTypes.ByCategory:                

   60                 break;

   61             case ReportTypes.ByType:

   62                 break;

   63         }

   64     }