net11.0 
namespace System.IO.Packaging
{
    public abstract class PackagePart
    {
        public string! ContentType { get; }
    }
}
nuget.org
0.1 %
Reference this API
.NET
5.06.07.08.09.010.011.0
.NET Core
3.03.1
.NET Framework
3.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net11.0
Assemblies

System.IO.Packaging , Version=11.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

System.IO.Packaging , Version=10.0.0.0, PublicKeyToken=b03f5f7f11d50a3a

Referencing

Your project needs a package reference to System.IO.Packaging.

Package System.IO.Packaging (11.0.0-preview.2.26159.112) net11.0
Platform Restrictions

The property getter is supported on all platforms.

  • Built-in API
  • Package-provided API