net481 
namespace System.Activities.Presentation.Expressions
{
    public abstract class ExpressionActivityEditor : UserControl
    {
        public static readonly DependencyProperty AcceptsReturnProperty;
    }
}
.NET Framework 4.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net481
Assembly

System.Activities.Presentation , Version=4.0.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Your project needs an assembly reference to System.Activities.Presentation.

Platform Restrictions

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  • Package-provided API