<telerik:RadGridView Name="DataGrid"
ItemsSource="{Binding Data}" ScrollViewer.CanContentScroll="True"
ScrollViewer.VerticalScrollBarVisibility="Auto"
ScrollViewer.HorizontalScrollBarVisibility="Auto" Grid.Row="0"
IsReadOnly="True"
IsFilteringAllowed="False" RowIndicatorVisibility="Collapsed" ShowGroupPanel="False"
AutoGenerateColumns="False" ShowColumnFooters="True" AutoExpandGroups="True"
CanUserFreezeColumns="False"
SelectionMode="Extended" SelectionUnit="FullRow" ShowInsertRow="False" CanUserInsertRows="False"
CanUserDeleteRows="False" CanUserReorderColumns="False"
CanUserResizeColumns="False"
CanUserSortColumns="False" >
<telerik:RadGridView.Columns>
<telerik:GridViewDataColumn DataMemberBinding="{Binding Column1}" Header="Column1" />
<telerik:GridViewDataColumn DataMemberBinding="{Binding Column2}" Header="Column2" />
</telerik:RadGridView.Columns>
<telerik:RadGridView.GroupRowStyle>
<Style TargetType="telerik:GridViewGroupRow">
<Setter Property="ShowHeaderAggregates" Value="False"></Setter>
</Style>
</telerik:RadGridView.GroupRowStyle>
<telerik:RadGridView.GroupHeaderTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Margin="0,0" Height="45">
<TextBlock Text="{Binding Group.Key}" Margin="0,0,0,2" Width="200" />
<telerik:AggregateResultsList ItemsSource="{Binding AggregateResults}" VerticalAlignment="Center">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" VerticalAlignment="Center">
<TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding Caption}" Width="90" />
<TextBlock VerticalAlignment="Center" HorizontalAlignment="Center" Text="{Binding FormattedValue}" Width="90" />
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"
/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</telerik:AggregateResultsList>
</StackPanel>
</DataTemplate>
</telerik:RadGridView.GroupHeaderTemplate>
<telerik:RadGridView.GroupDescriptors>
<telerik:GroupDescriptor x:Name="TransactionGroup" Member="Group1" SortDirection="Ascending"
>
<telerik:GroupDescriptor.AggregateFunctions>
<telerik:MinFunction SourceField="GroupHeader1" Caption="GroupHeader1" />
<telerik:MinFunction SourceField="GroupHeader2" Caption="GroupHeader2" />
</telerik:GroupDescriptor.AggregateFunctions>
</telerik:GroupDescriptor>
</telerik:RadGridView.GroupDescriptors>
</telerik:RadGridView>