AWS SDK for .NET Documentation
VPCZoneIdentifier Property
AmazonAmazon.AutoScaling.ModelCreateAutoScalingGroupRequestVPCZoneIdentifier Did this page help you?   Yes   No    Tell us about it...
A comma-separated list of subnet identifiers of Amazon Virtual Private Clouds (Amazon VPCs). If you specify subnets and Availability Zones with this call, ensure that the subnets' Availability Zones match the Availability Zones specified.

Constraints:

Length
1 - 255
Pattern
[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Declaration Syntax
C#
public string VPCZoneIdentifier { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.20.0 (1.5.20.0)