grouping and aggregates

[Rayne]

I've got a grid that has a group descriptor defined in xaml. I've also added an aggregate to the column that is being grouped to show the count. When the grid loads, the aggregate isn't showing up in the group header. Only when I ungroup, then group again does it show the aggregate. Here is my xaml...stripped for brevity.

<telerik:RadGridView AutoExpandGroups="True" AutoGenerateColumns="False" x:Name="UserGrid"
      ShowInsertRow="False" SelectionMode="Single" IsReadOnly="True" ItemsSource="{Binding AllUsers}" >
      <telerik:RadGridView.GroupDescriptors>
          <telerik:GroupDescriptor Member="Division.Name" SortDirection="Ascending" DisplayContent="Division" />
      </telerik:RadGridView.GroupDescriptors>
        <telerik:RadGridView.GroupHeaderTemplate>
             <DataTemplate>
                 <TextBlock Text="{Binding Group.Key}" FontWeight="Bold" MinWidth="100" />
             </DataTemplate>
        </telerik:RadGridView.GroupHeaderTemplate>
      <telerik:RadGridView.Columns>
          <telerik:GridViewDataColumn DataMemberBinding="{Binding LastName}" Header="Last Name" IsGroupable="False" />
          <telerik:GridViewDataColumn DataMemberBinding="{Binding FirstName}" Header="First Name" IsGroupable="False" />
          <telerik:GridViewDataColumn DataMemberBinding="{Binding Division.Name}" Header="Division">
             <telerik:GridViewDataColumn.AggregateFunctions>
               <telerik:CountFunction Caption="Count:" />
             </telerik:GridViewDataColumn.AggregateFunctions>
          </telerik:GridViewDataColumn>
          <telerik:GridViewDataColumn DataMemberBinding="{Binding Active}" Header="Active" />
          <telerik:GridViewDataColumn DataMemberBinding="{Binding EmailAddress}" Header="Email" IsGroupable="False" CellTemplateSelector="{StaticResource EmailTemplateSelector}" />
       </telerik:RadGridView.Columns>
</telerik:RadGridView>

[Rayne]

Finally figured out that I have to define the aggregate in both the group descriptor and the column. I would have thought just putting it on the column would work.