AWS SDK for .NET Documentation
InstanceId Property
AmazonAmazon.AutoScaling.ModelCreateLaunchConfigurationRequestInstanceId Did this page help you?   Yes   No    Tell us about it...
The ID of the Amazon EC2 instance you want to use to create the launch configuration. Use this attribute if you want the launch configuration to derive its attributes from an EC2 instance. When you use an instance to create a launch configuration, all you need to specify is the InstanceId. The new launch configuration, by default, derives all the attributes from the specified instance with the exception of BlockDeviceMapping. If you want to create a launch configuration with BlockDeviceMapping or override any other instance attributes, specify them as part of the same request. For more information on using an InstanceID to create a launch configuration, see Create a Launch Configuration Using an Amazon EC2 Instance in the Auto Scaling Developer Guide.

Constraints:

Length
1 - 16
Pattern
[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

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

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