CentralizedControl/HandyControl/HandyControl_Shared/Controls/PropertyGrid/Editors/DateTimePropertyEditor.cs

using System.Windows;

namespace HandyControl.Controls;

public class DateTimePropertyEditor : PropertyEditorBase
{
    public override FrameworkElement CreateElement(PropertyItem propertyItem) => new DateTimePicker
    {
        IsEnabled = !propertyItem.IsReadOnly
    };

    public override DependencyProperty GetDependencyProperty() => DateTimePicker.SelectedDateTimeProperty;
}