public WcfModel UpdateImageStatus(string imgID, string tagName, Image img)
 {
     try {
         ImageService imageService = new ImageService(tagName);
         imageService.UpdateImgStatus(DataConvert.ToObjectId(imgID), img.IsDelete, null, img.IsPublic);
         model.Code = WcfStatus.UpdateSuccessful;
     }
     catch {
     }
     return model;
 }