protected void rptparameter_ItemCommand(object source, RepeaterCommandEventArgs e)
 {
     if (e.CommandName == "EditData")
     {
         Response.Redirect("Parameteradd.aspx?id=" + e.CommandArgument.ToString());
     }
     if (e.CommandName == "DeleteData")
     {
         using (parameter badd = new parameter())
         {
             badd._id = Convert.ToInt64(e.CommandArgument.ToString());
             badd.parameter_delete();
             FillRepeater();
         }
     }
 }