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POHow to get rid of display corruption during horizontal scroll in WPF4 DataGrid with grouping?
 

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  1. POHow to get rid of display corruption during horizontal scroll in WPF4 DataGrid with grouping?
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    <p>I'm trying to create a datagrid with grouping and I'm getting display corruption (blank areas) during horizontal scrolling. The issue appears <strong>only</strong> when there is a GroupStyle.ContainerStyle defined. The datagrid should contain 200 rows or more to reproduce the problem.</p> <p><strong>UPDATE2:</strong> <a href="https://connect.microsoft.com/VisualStudio/feedback/details/677198/render-glitches-in-wpf4-datagrid-with-disabled-virtualization" rel="nofollow noreferrer">Related Microsoft Connect feedback</a>.</p> <p><strong>UPDATE:</strong> Microsoft guy at <a href="http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/cf47f2e9-e488-42f0-9407-5a668d5c086f/" rel="nofollow noreferrer">social.msdn.com</a> pointed out that adding grouping turns off datagrid virtualization. Possibly that's the root of the problem. I removed grouping from my sample and set <code>VirtualizingStackPanel.IsVirtualizing</code> to <code>false</code> and got exactly the same kind of corruption.</p> <p>Code to reproduce the problem:</p> <pre><code>&lt;DataGrid ItemsSource="{Binding Source={StaticResource ResourceKey=cvsGoods}}" CanUserAddRows="False" CanUserReorderColumns="False" CanUserDeleteRows="False" CanUserResizeRows="False" CanUserSortColumns="False" AutoGenerateColumns="True"&gt; &lt;DataGrid.GroupStyle&gt; &lt;GroupStyle&gt; &lt;GroupStyle.ContainerStyle&gt; &lt;Style TargetType="{x:Type GroupItem}"&gt; &lt;Setter Property="Template"&gt; &lt;Setter.Value&gt; &lt;ControlTemplate TargetType="{x:Type GroupItem}"&gt; &lt;ItemsPresenter /&gt; &lt;/ControlTemplate&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/GroupStyle.ContainerStyle&gt; &lt;/GroupStyle&gt; &lt;/DataGrid.GroupStyle&gt; &lt;/DataGrid&gt; </code></pre> <p>After several horizontal scrolls to the right and back to the left blank areas appear on the left side. I tried it on WinXP and Win7.</p> <p>The question is: how to get rid of that bug? Is there any workaround? Any suggestions?</p> <p>Screenshot illustrating the problem:</p> <p><img src="https://i.stack.imgur.com/yEd7x.jpg" alt="Display corruption"></p>
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      1. POHow to get rid of display corruption during horizontal scroll in WPF4 DataGrid with grouping?
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    1. COAny luck with this? I am having a very similar issue with FrozenColumns
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    2. CO@AlanR No, no luck at all. I had to fall back to WinForms. But MS knows about it so I hope it will be fixed in .NET 4.5.
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