[Solved] Custom Group Footer

[José]

Hi,

Is it possible to create a custom group footer?
I'm able to do this for column footer but for the group footers I can only edit it's DataTemplate where i can't find which group footer i'm at (at this level we only get the AggregateResultCollection has datacontext).

I need this because i'm using a paginated item source where i might not have all the rows belonging to the group loaded and thus the group footer won't have the correct aggregated value for that group (since there are missing values).

[Vanya Pavlova]

Hello José,


You may define your own GroupFooterTemplate in a similar manner that is shown in our online example:

<telerik:RadGridView ShowGroupFooters="True" AutoGenerateColumns="False" Margin="50,116,94,109" ItemsSource="{Binding Collection}">
        <telerik:RadGridView.Columns>
    <telerik:GridViewDataColumn Header="Property1" DataMemberBinding="{Binding Property1}">
        <telerik:GridViewDataColumn.AggregateFunctions>
                            <telerik:AverageFunction Caption="Average: "/>
                            <telerik:CountFunction Caption="Count: "/>
                        </telerik:GridViewDataColumn.AggregateFunctions>
                 <telerik:GridViewDataColumn.GroupFooterTemplate>
            <DataTemplate>
                <StackPanel Orientation="Vertical" Margin="5">
                    <TextBlock Text="Custom group footer with aggregates: "/>
                    <telerik:AggregateResultsList ItemsSource="{Binding}" VerticalAlignment="Center">
                        <ItemsControl.ItemTemplate>
                            <DataTemplate>
                                <StackPanel Orientation="Horizontal" VerticalAlignment="Center">
                                    <TextBlock Text="{Binding Caption}" VerticalAlignment="Center"/>
                                    <TextBlock Text="{Binding FormattedValue}" VerticalAlignment="Center"/>
                                    </StackPanel>
                                </DataTemplate>
                            </ItemsControl.ItemTemplate>
                        </telerik:AggregateResultsList>
                    </StackPanel>
                </DataTemplate>
            </telerik:GridViewDataColumn.GroupFooterTemplate>
        </telerik:GridViewDataColumn>
          </telerik:RadGridView.Columns>
   </telerik:RadGridView>

Also you may take a look at this forum thread.
If you need any further assistance let me know.


Sincerely yours,
Vanya Pavlova
the Telerik team