public virtual ActionResult SaveMultipleChangeAsChild(string tabId, int parentId, FormCollection collection)
 {
     return(SaveAsChild(tabId, parentId, model => { ChildContentService.MultipleChange(parentId, model.EntityIDs.ToList(), model.Data); }));
 }
 public virtual async Task <ActionResult> SaveMultipleChangeAsChild(string tabId, int parentId, IFormCollection collection)
 {
     return(await SaveAsChild(tabId, parentId, model => { ChildContentService.MultipleChange(parentId, model.EntityIds, model.Data); }));
 }