Sets the key of the object to create or update.

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 InitiateMultipartUploadRequest WithKey( string key )

- key (String)
- The object key

the request with the Key set