public List<AttributeSetBaseInfo> GetAttributeSetGrid(int offset, int limit, string attributeSetName, System.Nullable<bool> isActive, System.Nullable<bool> usedInSystem, int storeId, int portalId, string cultureName, string userName)
 {
     try
     {
         ItemAttributesManagementSqlProvider obj = new ItemAttributesManagementSqlProvider();
         return obj.GetAttributeSetGrid(offset, limit, attributeSetName, isActive, usedInSystem, storeId, portalId, cultureName, userName);
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }