AWS SDK for .NET Documentation
UnmodifiedSinceDate Property
AmazonAmazon.S3.ModelGetObjectRequestUnmodifiedSinceDate Did this page help you?   Yes   No    Tell us about it...
Returns the object only if it has not been modified since the specified time, otherwise returns a PreconditionFailed.
Declaration Syntax
C#
public DateTime UnmodifiedSinceDate { get; set; }

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