Sets whether the offering is available through the Reserved Instance
            Marketplace (resale) or AWS. 
            
 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 ReservedInstancesOffering WithIsMarketplace( bool isMarketplace )
 Parameters
 Parameters- isMarketplace (Boolean)
- True if it is a Marketplace offering.
 Return Value
 Return Valuethis instance