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    <p>Not pretend to answer, just for reference. In a classic article on <a href="http://blogs.msdn.com/b/jgoldb/archive/2008/02/04/finding-memory-leaks-in-wpf-based-applications.aspx"><code>Finding Memory Leaks in WPF-based applications</code></a> author <em>Jossef Goldberg</em>, described in detail cases, where there may be a memory leak in WPF application. Really, most relate to the .NET 3.5/4.0, but some cases may be relevant to this day. Also, have a small <a href="http://blogs.msdn.com/b/jgoldb/archive/2010/06/14/memory-leak-hotfixes-for-wpf-3-5-sp1.aspx">extension</a>.</p> <p>Quote about leak in <code>Binding</code>:</p> <p><code>Cause:</code></p> <p>This leak documented in this <a href="http://support.microsoft.com/kb/938416/en-us">kb article</a>. It is triggered because:</p> <p>The <code>TextBlock</code> control has a binding to an object (myGrid) that has a reference back to the <code>TextBlock</code> (it is one of myGrid children’s).</p> <p><code>Note:</code> that this type of a DataBinding leak is unique to a specific scenario (and not to all DataBinding scenarios) as documented in the <a href="http://support.microsoft.com/kb/938416/en-us">kb article</a>. The property in the <code>Path</code> is a not a <code>DependencyProperty</code> and not on a class which implements <code>INotifyPropertyChanged</code> and in addition a chain of strong reverences must exist.</p> <p>Code:</p> <pre><code>myDataBinding = new Binding("Children.Count"); myDataBinding.Source = myGrid; myDataBinding.Mode = BindingMode.OneWay; MyTextBlock.SetBinding(TextBlock.TextProperty, myDataBinding); </code></pre> <p>Same leaky code can be also written in XAML:</p> <pre><code>&lt;TextBlock Name="MyTextBlock" Text="{Binding ElementName=myGrid, Path=Children.Count}" /&gt; </code></pre> <p><code>Fix/Workaround:</code></p> <p>There are few of approaches, the easiest one is simply to clear the binding when the windows is about to close. </p> <p>e.g.:</p> <pre><code>BindingOperations.ClearBinding(MyTextBlock, TextBlock.TextProperty); </code></pre> <p>Other approach is to set the mode of the data binding to OneTime. See the <a href="http://support.microsoft.com/kb/938416/en-us">kb article</a> for other ideas.</p> <p>Useful link:</p> <p><a href="http://blogs.msdn.com/b/micmcd/archive/2008/03/07/avoiding-a-wpf-memory-leak-with-databinding-black-magic.aspx">Avoiding a WPF memory leak with DataBinding</a> </p>
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    1. POCan bindings create memory leaks in WPF?
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    1. USAnatoliy Nikolaev
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