PropertyGrid: added Update() method which will allow you to update all property values in the PropertyGrid with the data from the SelectedObject. This is helpful when your SelectedObject does not implement the INotifyPropertyChanged interface.

ExtendedWPFToolkitSolution/Src/WPFToolkit.Extended/PropertyGrid/Implementation/PropertyGrid.cs

@@ -489,6 +489,17 @@ namespace Microsoft.Windows.Controls.PropertyGrid
             Properties = null;
         }
 
+        /// <summary>
+        /// Updates all property values in the PropertyGrid with the data from the SelectedObject
+        /// </summary>
+        public void Update()
+        {
+            foreach (var item in Properties)
+            {
+                BindingOperations.GetBindingExpressionBase(item, PropertyItem.ValueProperty).UpdateTarget();
+            }
+        }
+
         #endregion //Methods
     }
 }