netcoreapp3.1 
namespace System.Windows.Automation.Peers
{
    public abstract class AutomationPeer : DispatcherObject
    {
        public int GetPositionInSet();
    }
}
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Reference this API
.NET
5.06.07.08.09.0
.NET Core
3.03.1
.NET Framework
4.84.8.1
Information specific to netcoreapp3.1
Assembly

PresentationCore , Version=4.0.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Requires all:

  • You need to build and run on Windows.

  • Your project needs to set <UseWPF>True</UseWPF>.

Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API