Multiple child grids in the grid

[Pramod]

Hi
I am currently trying to show two child grids when the user expands the parent row. These two child grids are not related to each other and they are not nested.

Here is an example of the data.
objectA
-- List<ObjectB>
--List<ObjectC>

Parent Grid Shows all the rows for ObjectA => when the user expands the parent row if eityher listA or ListB has any items int he collection.

Currently I have a grid which has one Child grid which works Successfully.
Question : Can I use multiple Child table definitions . Or is there a bettre way to solve this situation

<telerik:RadGridView
                            x:Name="ListAGridView"
                            Margin="5,5,5,5"
                            MinHeight="100"
                            MaxHeight="200"
                            IsReadOnly="True"
                            SelectionMode="Extended"
                            AutoGenerateColumns="False"
                            ShowGroupPanel="False"
                            RowIndicatorVisibility="Collapsed"
                            SelectionChanged="UsageGridView_SelectionChanged"
                            ItemsSource="{Binding Path=Usages, Mode=OneWay}"
                            SelectedItem="{Binding Path=SelectedUsage, Mode=TwoWay}"
                            HierarchyChildTemplate="{StaticResource UsagesChildTemplate}"
                            >
 <i:Interaction.Behaviors>
                                <Behaviors:RadGridRowExpandableBehavior IsExpandableSourcePropertyName="ListB.Count" />
                            </i:Interaction.Behaviors>

<telerik:RadGridView.ChildTableDefinitions>
                                <telerik:GridViewTableDefinition>
                                    <telerik:GridViewTableDefinition.Relation>
                                        <Data:PropertyRelation ParentPropertyName="ListB" />
                                    </telerik:GridViewTableDefinition.Relation>
                                </telerik:GridViewTableDefinition>
..../>

[Dimitrina]

Hello,

You can define different RowDetailsTemplates and show the one you prefer at a time using a RowDetailsTemplateSelector. An example with it is available on this online demo.

Regards,
Didie
the Telerik team

[Pramod]

Hi Didie
I don't want to select between the two grids I want to show both based upon the items in the collection. and if the collection is empty I don't want the child grid to show up. any hel in this regards is appreciated.

Thank you

[Dimitrina]

Hello,

You can check this online demo on how to hide the expand hierarchy button when there is no data to be shown. Please note that you should inform the GridView what to show in the template you define for its details/hierarchy. Just define both the child GridViews in one template and set it for the GridView' details/hierarchy.

All the best,
Didie
the Telerik team