net9.0 
namespace Microsoft.EntityFrameworkCore.Metadata.Internal
{
    public static class KeyExtensions
    {
        public static int IndexOf(this IReadOnlyKey! key, IReadOnlyProperty! property);
    }
}
.NET
8.09.010.0
Information specific to net9.0
Assembly

Microsoft.EntityFrameworkCore , Version=9.0.3.0, PublicKeyToken=adb9793829ddae60

Referencing

Your project needs a package reference to Microsoft.EntityFrameworkCore.

Package Microsoft.EntityFrameworkCore (9.0.3) net8.0
Platform Restrictions

This API is supported on all platforms.

  • Built-in API
  • Package-provided API