AWS SDK for .NET Documentation
WithModifiedSinceDate Method (modifiedSinceDate)
AmazonAmazon.S3.ModelGetObjectRequestWithModifiedSinceDate(DateTime) Did this page help you?   Yes   No    Tell us about it...
Returns the object only if it has been modified since the specified time, otherwise returns a PreconditionFailed.
Declaration Syntax
C#
[ObsoleteAttribute("The With methods are obsolete and will be removed in version 2 of the AWS SDK for .NET. See http://aws.amazon.com/sdkfornet/#version2 for more information.")]
public GetObjectRequest WithModifiedSinceDate(
	DateTime modifiedSinceDate
)
Parameters
modifiedSinceDate (DateTime)
Date and time to test
Return Value
this instance
Remarks
When this is set the S3 object is returned only if it has been modified since the specified time, otherwise returns a 304 (not modified).

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