AWS SDK for .NET Documentation
MaxKeys Property
AmazonAmazon.S3.ModelListVersionsRequestMaxKeys Did this page help you?   Yes   No    Tell us about it...
Sets the maximum number of keys returned in the response body. Default: 1000.
Declaration Syntax
C#
public int MaxKeys { get; set; }
Remarks
The response might contain fewer keys, but will never contain more. If additional keys satisfy the search criteria, but were not returned because max-keys was exceeded, the response object's IsTruncated property will be set to True.To return the additional keys, use the key-marker and version-id-marker properties on a subsequent request.

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)