I have a child grid as below, but it doesn't honor Widths set to the columns in Xaml. Also, even though I've set the FrozenColumnCount, when I scroll left or right, the entire child table scrolls left or right and the columns that are supposed to be frozen scroll as well.
<telerik:RadGridView.HierarchyChildTemplate>
<DataTemplate>
<telerik:RadGridView x:Name="RadGridView1" CanUserFreezeColumns="True" CanUserInsertRows="False"
CanUserReorderColumns="False" CanUserResizeColumns="True" FrozenColumnCount="8" ShowColumnHeaders="True" IsFilteringAllowed="False"
AutoGenerateColumns="False" ItemsSource="{Binding SkuForecastArchiveData}" ShowGroupPanel="False" IsReadOnly="True">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="Sku" DataMemberBinding="{Binding Sku}" Width="48" />
...
<telerik:RadGridView.HierarchyChildTemplate>
<DataTemplate>
<telerik:RadGridView x:Name="RadGridView1" CanUserFreezeColumns="True" CanUserInsertRows="False"
CanUserReorderColumns="False" CanUserResizeColumns="True" FrozenColumnCount="8" ShowColumnHeaders="True" IsFilteringAllowed="False"
AutoGenerateColumns="False" ItemsSource="{Binding SkuForecastArchiveData}" ShowGroupPanel="False" IsReadOnly="True">
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn Header="Sku" DataMemberBinding="{Binding Sku}" Width="48" />
...