Sets the first port in the range.
A value of -1 indicates all ports.

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 PortRange WithFrom( decimal from )

- from (Decimal)
- The first port in the range. A value of -1 indicates all ports.

this instance