public PermissionCategoriesService( iPow.Domain.Repository.IPermissionCategoriesRepository permissionCategories)
 {
     if (permissionCategories == null)
         {
             throw new ArgumentNullException(" permissionCategoriesRepository   is null");
         }
         permissionCategoriesRepository = permissionCategories;
 }
 public PermissionCategoriesService(iPow.Domain.Repository.IPermissionCategoriesRepository permissionCategories)
 {
     if (permissionCategories == null)
     {
         throw new ArgumentNullException(" permissionCategoriesRepository   is null");
     }
     permissionCategoriesRepository = permissionCategories;
 }