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Binding error when using grouping in xaml

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This is a migrated thread and some comments may be shown as answers.
Marcin
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Marcin asked on 16 Jul 2013, 12:34 PM
Hello
I have strange "error" when using column grouping in xaml. The grouping is working, and I cannot find any issue with that however I don't like having binding errors in output window because that means that something is wrong.

I have flowing column:
<telerik:GridViewDataColumn Header="Device Type" Width="Auto" DataMemberBinding="{Binding Path=DeviceTypeDescription}" UniqueName="DeviceTypeDescription" />
 and following group description:
<telerik:RadGridView.GroupDescriptors>
<telerik:ColumnGroupDescriptor Column="{Binding Columns[\DeviceTypeDescription\], ElementName=GridView}" SortDirection="Ascending" />
</telerik:RadGridView.GroupDescriptors>
However during application start I can see following error:

System.Windows.Data Error: 2 : Cannot find governing FrameworkElement or FrameworkContentElement for target element. BindingExpression:Path=Columns[DeviceTypeDescription]; DataItem=null; target element is 'ColumnGroupDescriptor' (HashCode=36687163); target property is 'Column' (type 'GridViewColumn')

When I go to the tab where grid is, grouping is working properly. Just for information. Data for taht grid is loaded only when I open tab not during application start.

Regards

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Vera
Telerik team
answered on 19 Jul 2013, 01:11 PM
Hi Marcin,


I have tested your case with our latest version and the error did not appear. May I ask to download our next Internal Build expected on Monday and to give it a try?

Let us know in case you still experience the problem.

Regards,
Vera
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Marcin
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Vera
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