Sets the Ec2InstanceId property
            
 Declaration Syntax
 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 EnvironmentInfoDescription WithEc2InstanceId( string ec2InstanceId )
 Parameters
 Parameters- ec2InstanceId (String)
- The value to set for the Ec2InstanceId property
 Return Value
 Return Valuethis instance