/*available categories*/
 protected void getAvailableCategories()
 {
     using (sc_getAvailableCategories ac = new sc_getAvailableCategories()) {
         ac.GetData();
         List <string> dbCategories = new List <string>();
         foreach (DataRow dr in ac.AvailableCategories.Rows)
         {
             dbCategories.Add(dr["ConfigValue"].ToString());
         }
         availableCategories = string.Join(",", dbCategories);
     }
 }
 /*available categories*/
 protected void getAvailableCategories()
 {
     using (sc_getAvailableCategories ac = new sc_getAvailableCategories()) {
         ac.GetData();
         List<string> dbCategories = new List<string>();
         foreach (DataRow dr in ac.AvailableCategories.Rows) {
             dbCategories.Add(dr["ConfigValue"].ToString());
         }
         availableCategories = string.Join(",", dbCategories);
     }
 }