Init

ViewModels/ViewModelBase.cs

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+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.ComponentModel;
+using System.Text;
+using System.Windows;
+using System.Windows.Controls;
+
+namespace TradeBlotter.ViewModels
+{
+  public interface IPersistentViewModel
+  {
+    SaveParameters GetSaveParameters();
+    void SetSaveParameters(SaveParameters saveParameters);
+    bool CanPersist();
+  }
+  public abstract class ModelBase : INotifyPropertyChanged
+  {
+    public event PropertyChangedEventHandler PropertyChanged;
+    protected virtual bool ThrowOnInvalidPropertyName
+    {
+      get;
+      private set;
+    }
+    protected virtual void OnPropertyChanged(string propertyName)
+    {
+      this.VerifyPropertyName(propertyName);
+      PropertyChangedEventHandler handler = PropertyChanged;
+      if (handler != null)
+      {
+        var e = new PropertyChangedEventArgs(propertyName);
+        handler(this, e);
+      }
+    }
+    public void VerifyPropertyName(string propertyName)
+    {
+      if (TypeDescriptor.GetProperties(this)[propertyName] == null)
+      {
+        string message = "Invalid property name: " + propertyName;
+        if (this.ThrowOnInvalidPropertyName) throw new Exception(message); else Debug.Fail(message);
+      }
+    }
+  }
+  public abstract class ViewModelBase : ModelBase, IDisposable, IPersistentViewModel
+  {
+    protected ViewModelBase()
+    {
+    }
+    public abstract SaveParameters GetSaveParameters();
+    public abstract void SetSaveParameters(SaveParameters saveParameters);
+    public abstract bool CanPersist();
+    public virtual void Dispose()
+    {
+      this.OnDispose();
+    }
+    public virtual String DisplayName { get; protected set; }
+    protected virtual void OnDispose()
+    {
+    }
+#if DEBUG
+    ~ViewModelBase()
+    {
+    }
+#endif
+  }
+}