net40-client 
namespace System.Windows
{
    [TypeConverter("System.Windows.Markup.DependencyPropertyConverter, PresentationFramework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, Custom=null")]
    [ValueSerializer(typeof(DependencyPropertyValueSerializer))]
    public sealed class DependencyProperty
    {
        public bool IsValidType(object value);
    }
}
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Reference this API
.NET 5.06.07.08.09.0
.NET Core 3.03.1
.NET Framework 3.03.54.04.54.5.14.5.24.64.6.14.6.24.74.7.14.7.24.84.8.1
Information specific to net40-client
Assembly

WindowsBase , Version=4.0.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

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

Platform Restrictions

This framework does not have platform annotations.

  • Built-in API
  • Package-provided API