Add project files.

UI/WPF/Helpers/PropertyPathHelper.cs

@@ -0,0 +1,29 @@
+using System.Windows;
+using System.Windows.Data;
+
+namespace TheXamlGuy.UI.WPF
+{
+    public static class PropertyPathHelper
+    {
+        private static readonly Dummy dummy = new();
+
+        public static object GetValue(object args, string path)
+        {
+            Binding binding = new(path)
+            {
+                Mode = BindingMode.OneTime,
+                Source = args
+            };
+
+            BindingOperations.SetBinding(dummy, Dummy.ValueProperty, binding);
+            return dummy.GetValue(Dummy.ValueProperty);
+        }
+
+        private class Dummy : DependencyObject
+        {
+            public static readonly DependencyProperty ValueProperty =
+                DependencyProperty.Register("Value", typeof(object), typeof(Dummy), 
+                    new UIPropertyMetadata(null));
+        }
+    }
+}