private async Task <string> GetfileNameFromHandle(DocumentStoreServiceClient client, DocumentHandle handle)
 {
     try
     {
         return(await client.GetFileNameAsync(handle));
     }
     catch (Exception)
     {
         return(String.Empty);
     }
 }
 private async Task<string> GetfileNameFromHandle(DocumentStoreServiceClient client, DocumentHandle handle)
 {
     try
     {
         return await client.GetFileNameAsync(handle);
     }
     catch (Exception)
     {
         return String.Empty;
     }
 }