Dynamic loading of control instance code in XAML in WPF

In this paper, an example is given to describe the method of dynamically loading controls in XAML in WPF. Share it for your reference, as follows:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;
using System.Xml;
using System.Windows.Markup;
/*
 *  Function: Test WPF Dynamic loading in XAML Controls in 
 *     And added to the specified child node. 
 *  By: Kagula
 *  Time: 2012-09-20
 *  Environment: VS2008 .NET FRAMEWORK 3.5
 *  References: [1] " Application=Code+Markup  Reading notes  19 " 
 *        http://space.itpub.net/15123181/viewspace-423015
 *      [2] " Pack URIs in Windows Presentation Foundation " 
 *        http://technet.microsoft.com/en-US/library/aa970069(v=vs.90)
 */
namespace testXAMLLoad
{
  /// <summary>
  /// Interaction logic for Window1.xaml
  /// </summary>
  public partial class Window1 : Window
  {
    public Window1()
    {
      InitializeComponent();
      //LoadEmbeddedXaml();
      //LoadEmbeddedXaml2();
      LoadEmbeddedXaml3();
    }
    // Load from a string 
    public void LoadEmbeddedXaml()
    {
      Title = "Load Embedded Xaml";
      string strXaml = "<Button xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'" +
        " Foreground='LightSeaGreen' FontSize='16pt' Width='128' Height='32'>" +
        " From String Object!</Button>";
      StringReader strreader = new StringReader(strXaml);
      XmlTextReader xmlreader = new XmlTextReader(strreader);
      object obj = XamlReader.Load(xmlreader);
      grid1.Children.Add((UIElement)obj);
    }
    // Load from an external file  Button Control 
    public void LoadEmbeddedXaml2()
    {
      XmlTextReader xmlreader = new XmlTextReader("d:\\a.xaml");
      UIElement obj = XamlReader.Load(xmlreader) as UIElement;
      grid1.Children.Add((UIElement)obj);
    }
    // Load from a resource file 
    public void LoadEmbeddedXaml3()
    {
      //Build Action = Resource,Do not Copy, No correspondence cs Documents 
      Uri uri = new Uri("/LoadXamlResource.xaml",UriKind.Relative);
      Stream stream =Application.GetResourceStream(uri).Stream;
      //FrameworkElement Inherit from UIElement
      FrameworkElement obj =XamlReader.Load(stream) as FrameworkElement;
      grid1.Children.Add(obj);
    }
  }
}

Manifests in the xaml file

<Button xmlns='http://schemas.microsoft.com/winfx/2006/xaml/presentation'
  Foreground='LightSeaGreen'
  FontSize='16pt'
  Width='128'
  Height='32'>
  From File Object!
</Button>

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