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    <p>I think you can use <a href="http://forums.silverlight.net/forums/p/55369/142519.aspx" rel="nofollow">this</a></p> <p>Using this code you can found ancestor of the DataGridColumn - your DataGrid in visual tree. This code implemented as static function but you can change it to extension method with more "speaking" name like FindAncestor:</p> <pre><code>public static class UIElementExtensions { public static T FindAncestor&lt;T&gt;(this UIElement control) where T: UIElement { UIElement p = VisualTreeHelper.GetParent(control) as UIElement; if (p != null) { if (p is T) return p as T; else return p.FindAncestor&lt;T&gt;(); } return null; } } </code></pre> <p>and use it:</p> <pre><code>DataGrid p = dataGridColumn.FindAncestor&lt; DataGrid &gt;(); </code></pre> <p>If you need to get your DataGrid from XAML try to use binding from <a href="http://www.scottlogic.co.uk/blog/colin/2009/02/relativesource-binding-in-silverlight/" rel="nofollow">this article</a>.</p> <p>Good luck.</p> <p><strong>UPDATE</strong>:</p> <p>I understand what is the matter. The next answer won't be so easy, but it's silverlight :) So, why you cann't find DataGrid from DataGridColumn using VisualTreeHelper? Because, DataGridColumn doesn't exist in Visual Tree. DataGridColumn inherits from DependencyObject, not UIElement. Forget about VisualTree, and new <strong>idea</strong> will be like this: we <strong>add addition attached property to DataGridColumn - named Owner, and bound DataGrid to this property</strong>. But, <strong>DataGridColumn is DependencyObject</strong> and <strong>any bindings by ElementName don't work in silverlight 4</strong>. We can bind only to StaticResource. So, do it. 1) Owner attached property for DataGridColumn:</p> <pre><code>public class DataGridHelper { public static readonly DependencyProperty OwnerProperty = DependencyProperty.RegisterAttached( "Owner", typeof(DataGrid), typeof(DataGridHelper), null)); public static void SetOwner(DependencyObject obj, DataGrid tabStop) { obj.SetValue(OwnerProperty, tabStop); } public static DataGrid GetOwner(DependencyObject obj) { return (DataGrid)obj.GetValue(OwnerProperty); } } </code></pre> <p>2) DataGrid Xaml (for instance):</p> <pre><code>&lt;Controls:DataGrid x:Name="dg" ItemsSource="{Binding}"&gt; &lt;Controls:DataGrid.Columns&gt; &lt;Controls:DataGridTextColumn h:DataGridHelper.Owner="[BINDING]"/&gt; &lt;/Controls:DataGrid.Columns&gt; &lt;/Controls:DataGrid&gt; </code></pre> <p>3) DataGrid Container - keeper of DataGrid instance in StaticResource:</p> <pre><code>public class DataGridContainer : DependencyObject { public static readonly DependencyProperty ItemProperty = DependencyProperty.Register( "Item", typeof(DataGrid), typeof(DataGridContainer), null ); public DataGrid Item { get { return (DataGrid)GetValue(ItemProperty); } set { SetValue(ItemProperty, value); } } } </code></pre> <p>4) Add to Resources of your view instance of DataGridContainer and bind DataGrid instance to Item property:</p> <pre><code>&lt;c:DataGridContainer x:Key="ownerContainer" Item="{Binding ElementName=dg}"/&gt; </code></pre> <p>Here, binding by ElementName will be worked.</p> <p>5) Last step, we bind our DataGrid to attached property Owner (see p.2 and add next code to [BINDING] section):</p> <pre><code>{Binding Source={StaticResource ownerContainer}, Path=Item} </code></pre> <p>That's all. In code, if we have reference to DataGridColumn we can get owned DataGrid:</p> <pre><code>DataGrid owner = (DataGrid)dataGridColumn.GetValue(DataGridHelper.OwnerProperty);** </code></pre> <p>Hope this principle will help you.</p>
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    1. POFind DataGrid for DataGridColumn
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    1. USVladimir Dorokhov
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    1. COI thought of this, but `VisualTreeHelper.GetParent` throws an exception when I try to get the parent of a DataGridColumn.
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      1. USJordan
    2. COWhat exactly do you mean by "[BINDING]" in step 2. Do you mean "{Binding}"? If so, that's not going to help.
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    3. COsee step 5. I write want you should add in this place
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