In case you are trying to Host a WPF control in a Windows Form Application the sample in the SDK isn't rendering due to the fact it attempting to put the control in a panel.  The sample has also changed the default control from a page to Grid - this is required! (see XAML below). 

In either case i thought i would post a simple sample.  

Note the references the live in: C:\Program Files\Reference Assemblies\Microsoft\WinFx\v3.0

 

 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Windows.Controls;

using System.Windows.Forms.Integration;

using System.Windows.Media;

 

namespace WindowsApplication1

{ public partial class Form1 : Form

{

private ElementHost ctrlHost;

private MyControls.Page1 avAddressCtrl;

private MyControls.Page2 avAddressCtrl2;

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

ctrlHost = new ElementHost();

ctrlHost.Dock = DockStyle.Fill;

avAddressCtrl = new MyControls.Page1();

avAddressCtrl2 = new MyControls.Page2();

avAddressCtrl2.InitializeComponent();

ctrlHost.Child = avAddressCtrl2;

this.Controls.Add(ctrlHost);

}

}

}

 

<Grid x:Class="MyControls.Page2"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="121" Width="111">

<Button Height="21.96" Margin="10,10,32,0" Name="button1" VerticalAlignment="Top">Button</Button>

</Grid>