private void BindStructureCode()
 {
     try
     {
         List <ProductCat> list = ProductCat.ListStructureCode();
         if (list != null && list.Count > 0)
         {
             drpStructure.DataSource     = list;
             drpStructure.DataTextField  = "Code";
             drpStructure.DataValueField = "Code";
             drpStructure.DataBind();
             drpStructure.Items.Insert(0, new ListItem("-Select-", "0"));
             // drpStructure.SelectedIndex = Convert.ToInt32(ConfigurationManager.AppSettings["DefaultStructur"]);
         }
         else
         {
             drpStructure.DataSource = null;
             drpStructure.DataBind();
         }
     }
     catch (Exception ex)
     {
         l_Error.Text    = ex.Message;
         l_Error.Visible = true;
     }
 }
 private void BindStructureCode()
 {
     try
     {
         List <ProductCat> list = ProductCat.ListStructureCode();
         if (list != null && list.Count > 0)
         {
             drpStructure.DataSource     = list;
             drpStructure.DataTextField  = "Code";
             drpStructure.DataValueField = "Code";
             drpStructure.DataBind();
             drpStructure.Items.Insert(0, new ListItem("-Select-", "0"));
             //drpStructure.SelectedIndex = Convert.ToInt32(ConfigurationManager.AppSettings["DefaultStructur"]);
         }
         else
         {
             drpStructure.DataSource = null;
             drpStructure.DataBind();
         }
     }
     catch (Exception ex)
     {
         var message = new JavaScriptSerializer().Serialize(ex.Message.ToString());
         var script  = string.Format("alert({0});", message);
         ScriptManager.RegisterClientScriptBlock(Page, Page.GetType(), "", script, true);
     }
 }