Sets the RunningInstanceCount property

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 InstanceGroup WithRunningInstanceCount( int runningInstanceCount )

- runningInstanceCount (Int32)
- The value to set for the RunningInstanceCount property

this instance