Stock from Github repo

- WPF Client (empty)
- MVVM code base (limited)
- Images, Sprites, and other Rss

SharedLibraries/SeriusSoft/MVVM/BaseClasses/BaseViewModel.cs

@@ -0,0 +1,34 @@
+using System.ComponentModel;
+using System.Runtime.CompilerServices;
+
+namespace SeriusSoft.Frameworks.MVVM.ViewModels
+{
+  public abstract class BaseViewModel : INotifyPropertyChanged, IBackedByModel
+  {
+    public virtual bool IsNew { get { return true; } }
+    public virtual bool IsBacked { get; set; }
+
+    ///<summary>
+    /// if you are having trouble with the [CallerMemberName] attribute due to versioning,
+    /// you can check out http://stackoverflow.com/questions/301809/workarounds-for-nameof-operator-in-c-typesafe-databinding for supplying a name to this method
+    /// as well as the inner workings of new'ing up an Exception to determine how they use the call-stack to find out who called the method or which method call it is on or just finished 
+    ///<summary>
+    protected virtual void RaisePropertyChanged([CallerMemberName] string member = "")
+    {
+      var copy = PropertyChanged;
+      if ( copy != null )
+      {
+        var changedEvent = new PropertyChangedEventArgs(member);
+        copy(this, changedEvent);
+      }
+    }
+
+    protected abstract void RaiseAllBackedPropertiesChanged();
+
+    #region INotifyPropertyChanged Members
+
+    public event PropertyChangedEventHandler PropertyChanged;
+
+    #endregion
+  }
+}