Access to hierarchical grids

[Andrew]

Hello guys.
I''ve got common hierarchical design grids;

<telerikGridView:RadGridView  Grid.Row="1" HorizontalAlignment="Left" x:Name="grRegistrateProducts"/>
            <telerikGridView:RadGridView.ChildTableDefinitions>
                <telerikGridView:GridViewTableDefinition>
                    <telerikGridView:GridViewTableDefinition.Relation>
                        <telerikData:PropertyRelation ParentPropertyName="WorkPlaces" />
                    </telerikGridView:GridViewTableDefinition.Relation>
                </telerikGridView:GridViewTableDefinition>
            </telerikGridView:RadGridView.ChildTableDefinitions>
            <telerikGridView:RadGridView.HierarchyChildTemplate>
                <DataTemplate>
                    <telerikGridView:RadGridView ItemsSource="{Binding WorkPlaces}" x:Name="grWorkPlaces" ShowGroupPanel="False" AutoGenerateColumns="False">
                        <telerikGridView:RadGridView.Columns>
                            <telerikGridView:GridViewDataColumn UniqueName="Id" IsReadOnly="True" MinWidth="200" MaxWidth="400"/>
                        </telerikGridView:RadGridView.Columns>
                    </telerikGridView:RadGridView>
                </DataTemplate>
            </telerikGridView:RadGridView.HierarchyChildTemplate>
            <telerikGridView:RadGridView.Columns>
                <telerikGridView:GridViewDataColumn UniqueName="Name" IsReadOnly="True" MinWidth="200" MaxWidth="400"/>
            </telerikGridView:RadGridView.Columns>
 </telerikGridView:RadGridView>

I need acces to inrenalGrid.CurrentItem. But at code I can't access to my grWorkPlaces. So what's wrong? And what should I do?
Thanks.

[Maya]

Hi Andrew,

You can access the child grid with the help of the extension method ChildrenOfType<>. For example:

var selectedRow = (GridViewRow)this.clubsGrid.ItemContainerGenerator.ContainerFromItem(this.clubsGrid.SelectedItem);
var childGrid = selectedRow.ChildrenOfType<GridViewDataControl>().FirstOrDefault();
if (childGrid != null)
   {
    Player currentPlayer = childGrid.CurrentItem as Player;
   }

You can find more information about the extension methods ChildrenOfType<> and ParentOfType<> in this blog post.

Regards,
Maya
the Telerik team

[Muhammad]

Hi Maya(Admin),
i got a query ,i have collection of objects which are not hierarchical but i want to display them in hierarchical grid.can you please tell me how i can set the hierarchical (inner nested grid) itemssource from the source code(dynamically)
with regards

[Rossen Hristov]

Hello,

You can use the Row Details feature for that purpose and set the ItemsSource of your child grid (that is inside the row details template) to anything that you want in the LoadingRowDetails event handler.

Regards,
Ross
the Telerik team

[Dave Navarro]

Hello,

I also have a child grid and I need to add a double click event to it.

With my parent grids I'd do it like this;

this.radGVRecords.AddHandler(GridViewCellBase.CellDoubleClickEvent, new EventHandler<RadRoutedEventArgs>(OnCellDoubleClick), true);

I usually place this code after my "InitializeComponent(); " line of code but I'm not sure now to achieve the same results with a child grid.

Please let me know and thanks!

~ Dave

[Vlad]

Hi,

 To get reference to your child grid instance you can for example declare it using HierarchyChildTemplate and use Loaded event of the child grid itself. 

Regards,
Vlad
the Telerik team