Differences

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--- swdev:dotnet:wpf:implementing_mvvm [2011/03/09 14:35]
smayr
+++ swdev:dotnet:wpf:implementing_mvvm [2013/03/12 17:57] (current)
smayr [Resources]
@@ Line 5: / Line 5: @@
   * ViewModel: Models of the data as "viewed" or required by the Views.  A ViewModel encapsulates a Model and exposes it in a format that the View can use.
   * View: Data binding to ViewModel, with little "code-behind" to implement. It displays a limited window into the Model (data).
+=== Model ===
+=== View Model ===
+<code csharp>
+//========================================================================
+// Class TAppViewModel
+//========================================================================
+public class TAppViewModel : INotifyPropertyChanged
+{
+    #region Fields, Events, and Properties
+    //------------------------------------------------------------------------
+    // Fields
+    //------------------------------------------------------------------------
+    private string m_ApplicationName        = "MyApp";
+    private string m_ApplicationVersion     = "5.0";
+    private string m_ApplicationBuildNumber = "20110310";
+    private string m_ApplicationDevStage    = "Dev";
+    private int m_Tag            = 0;
+    //------------------------------
+    // Events
+    //------------------------------
+    public event PropertyChangedEventHandler PropertyChanged;
+    //------------------------------------------------------------------------
+    // Properties
+    //------------------------------------------------------------------------
+    public string ApplicationName
+    {
+        get { return m_ApplicationName; }
+        set { m_ApplicationName = value; }
+    }
+    public string ApplicationVersion
+    {
+        get { return m_ApplicationVersion; }
+        set { m_ApplicationVersion = value; }
+    }
+    public string ApplicationBuildNumber
+    {
+        get { return m_ApplicationBuildNumber; }
+        set { m_ApplicationBuildNumber = value; }
+    }
+    ...
+    public TAppViewModel()
+    {
+    }
+    public void SomeWorkToDo()
+    {
+       // Trigger Change
+       if (PropertyChanged != null)
+       {
+                TAppLog.LogMessage("TFittingVM.SetBusyFlag", "PropertyChanged event triggered for: IsDataLoading, IsControlAvailable.");
+                PropertyChanged(this, new PropertyChangedEventArgs("IsDataLoading"));
+                PropertyChanged(this, new PropertyChangedEventArgs("IsControlAvailable"));
+       }
+    }
+}
+</code>
 === Main View ===
 The ''Main View'' should implement an instance of ViewModel as a ObjectDataProvider (in XAML), that we call ''AppViewModel''.
@@ Line 185: / Line 249: @@
 </UserControl>
 </code>
+== Resources ==
+  * [[http://wpftutorial.net/MVVM.html|WPF Tutorial: MVVM (Overview)]]
+  * [[http://msdn.microsoft.com/en-us/magazine/dd419663.aspx|MSDN Magazine: WPF Apps With The Model-View-ViewModel Design Pattern, by Josh Smith]]
+  * [[http://www.codeproject.com/KB/WPF/TreeViewWithViewModel.aspx|Simplifying the WPF TreeView by Using the ViewModel Pattern, by Josh Smith]]
+  * [[http://stackoverflow.com/questions/1798600/mvvm-what-is-the-ideal-way-for-usercontrols-to-talk-to-each-other|MVVM: What is the ideal way for usercontrols to talk to each other]]
+  * [[http://lostechies.com/gabrielschenker/2009/05/31/fluent-silverlight-part-1/\|Los Techies: Fluent Silverlight (using MVVM)]]
+  * [[http://msdn.microsoft.com/en-us/library/ms752308.aspx|MSDN: Commanding Overview]]
+  * [[http://msdn.microsoft.com/en-us/magazine/cc785480.aspx|MSDN Magazine: Understanding Routed Events and Commands In WPF, by Brian Noyes]]
+  * [[http://zamjad.wordpress.com/2009/07/13/dependency-property-metadata|Dependency Property Metadata]]