title: how to change namespace of entire project?
body: <p>I'm modifying demo application from this article: <a href="http://msdn.microsoft.com/en-us/magazine/dd419663.aspx" rel="noreferrer">http://msdn.microsoft.com/en-us/magazine/dd419663.aspx</a></p>
  
  <p>I need to update all files to use my namespace, for example now file located here:</p>
  
  <pre><code>MySolution\MyApp\DemoApp\ViewModel\MainWindowViewModel.cs
  </code></pre>
  
  <p>is using such namespace:</p>
  
  <pre><code>namespace DemoApp.ViewModel
  {
  /// &lt;summary&gt;
  /// The ViewModel for the application's main window.
  /// &lt;/summary&gt;
  public class MainWindowViewModel : WorkspaceViewModel
  </code></pre>
  
  <p>I need to move file here (remove DemoApp folder):</p>
  
  <pre><code>MySolution\MyApp\ViewModel\MainWindowViewModel.cs
  </code></pre>
  
  <p>and also to use right namespace:</p>
  
  <pre><code>namespace MyApp.ViewModel
  {
  ....
  </code></pre>
  
  <p>how to do that in visual studio 2010?</p>
  
  <p><strong>Update</strong> ok here is possible duplicate <a href="https://stackoverflow.com/questions/2871314/visual-studio-change-project-namespace">Change Project Namespace in Visual Studio</a> Now I know how to change the namespace of the project, but how to move files on the file system? (get rid of "DemoApp" folder)</p>