Sets the PlatformApplicationArn.

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 PlatformApplication WithPlatformApplicationArn( string platformApplicationArn )

- platformApplicationArn (String)
- The Platform Application ARN.

this instance