WPF TreeViewItem Control Template for Organizational Chart
     Application and Source Code

   WPF Drag and Drop MVVM

     Application and Source Code
    Design
    The Drag
    The Drop
    The ListBox Drop


    WPF Master Detail MVVM



WPF Hierarchy MVVM
    Application and Source Code
    Design 

    Tree View 

    Navigation View 

    Detail View

WCF
     WCF Basic Authentication with SQL Memebership Provider

    WCF Https SetUp 


 WPF/Silverlight
   Layout by Content - best practices on WPF layout

Design Patterns
   Creational 
    Factory Method

    Structural 
    Decorator
    
Composite
    
Adapter
    
Bridge
    
Flyweight
    
Proxy
    
Facade

   
Behavioral 
    Chain of Responsibility
    
Command
    
Template Method
    
Strategy
    
State
    
Iterator
    
Mediator
    
Observer
    
Visitor
    
Memento
    Interpreter  

  UML