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    <p>ContentControls &amp; ItemsControls are good for this, you can bind them to a property of your UserControl or expose them.</p> <p>Using a ContentControl (for placeholders in multiple disconnected places):</p> <pre><code>&lt;UserControl x:Class="Test.UserControls.MyUserControl2" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" Name="control"&gt; &lt;Grid&gt; &lt;Button&gt;Just a button&lt;/Button&gt; &lt;ContentControl Content="{Binding PlaceHolder1, ElementName=control}"/&gt; &lt;/Grid&gt; &lt;/UserControl&gt; </code></pre> <pre><code>public partial class MyUserControl2 : UserControl { public static readonly DependencyProperty PlaceHolder1Property = DependencyProperty.Register("PlaceHolder1", typeof(object), typeof(MyUserControl2), new UIPropertyMetadata(null)); public object PlaceHolder1 { get { return (object)GetValue(PlaceHolder1Property); } set { SetValue(PlaceHolder1Property, value); } } public MyUserControl2() { InitializeComponent(); } } </code></pre> <pre><code>&lt;uc:MyUserControl2&gt; &lt;uc:MyUserControl2.PlaceHolder1&gt; &lt;TextBlock Text="Test"/&gt; &lt;/uc:MyUserControl2.PlaceHolder1&gt; &lt;/uc:MyUserControl2&gt; </code></pre> <hr> <p>ItemsControl-Version (for collections in one place)</p> <pre><code>&lt;UserControl x:Class="Test.UserControls.MyUserControl2" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" Name="control"&gt; &lt;Grid&gt; &lt;Button&gt;Just a button&lt;/Button&gt; &lt;ItemsControl Name="_itemsControl" ItemsSource="{Binding ItemsSource, ElementName=control}"/&gt; &lt;/Grid&gt; &lt;/UserControl&gt; </code></pre> <pre><code>[ContentProperty("Items")] public partial class MyUserControl2 : UserControl { public static readonly DependencyProperty ItemsSourceProperty = ItemsControl.ItemsSourceProperty.AddOwner(typeof(MyUserControl2)); public IEnumerable ItemsSource { get { return (IEnumerable)GetValue(ItemsSourceProperty); } set { SetValue(ItemsSourceProperty, value); } } public ItemCollection Items { get { return _itemsControl.Items; } } public MyUserControl2() { InitializeComponent(); } } </code></pre> <pre><code>&lt;uc:MyUserControl2&gt; &lt;TextBlock Text="Test"/&gt; &lt;TextBlock Text="Test"/&gt; &lt;/uc:MyUserControl2&gt; </code></pre> <p>With UserControls you can decide to expose certain properties of internal controls; besides the <code>ItemsSource</code> one probably would want to also expose properties like the <code>ItemsControl.ItemTemplate</code>, but it all depends on how you want to use it, if you just set the <code>Items</code> then you do not necessarily need any of that.</p>
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    1. POHow to create WPF usercontrol which contains placeholders for later usage
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    1. CO`DataContext="{Binding RelativeSource={RelativeSource Self}}` is **bad**, because it will prevent binding to actual data. The UserControl won't be able to inherit the DataContext from its parent, and if you define it explicitly when using the control, the binding on PlaceHolder1 won't work. You need to use a RelativeSource or ElementName binding instead.
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    2. CO@Thomas Levesque: Good point.
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    3. COThank you very much. After the fix with DataContext it works like a charm.
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