Add project files.

Library/Base/PropertyBase.cs

@@ -0,0 +1,31 @@
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace CMM.Library.Base
+{
+    public class PropertyBase : INotifyPropertyChanged
+    {
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        virtual internal protected void OnPropertyChanged(string propertyName)
+        {
+            if (this.PropertyChanged != null)
+            {
+                this.PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
+            }
+        }
+
+        protected void NotifyPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+
+        protected void SetProperty<T>(ref T storage, T value, [CallerMemberName] string propertyName = null)
+        {
+            if (object.Equals(storage, value)) return;
+
+            storage = value;
+            this.OnPropertyChanged(propertyName);
+        }
+    }
+}