TreeListView and self referencing data source

[adrian]

I want to display a self referencing table into a TreeListView.
Here is the xaml code:

<telerik:RadTreeListView x:Name="radGridView" ItemsSource="{Binding}" AutoGenerateColumns="False">
    <telerik:RadTreeListView.ChildTableDefinitions>
        <telerik:GridViewTableDefinition>
            <telerik:GridViewTableDefinition.Relation>
                <telerik:TableRelation IsSelfReference="True">
                    <telerik:TableRelation.FieldNames>
                        <telerik:FieldDescriptorNamePair
                            ParentFieldDescriptorName="ParentId"
                            ChildFieldDescriptorName="Id" />
                    </telerik:TableRelation.FieldNames>
                </telerik:TableRelation>
            </telerik:GridViewTableDefinition.Relation>
        </telerik:GridViewTableDefinition>
    </telerik:RadTreeListView.ChildTableDefinitions>
    <telerik:RadTreeListView.Columns>
        <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}" Header="Name" />
    </telerik:RadTreeListView.Columns>
</telerik:RadTreeListView>

All items are displayed without any indent so the tree looks like a list.

I'm confused because if I made some small changes and replace the TreeListView with a GridView the items are displayed properly and the items hierarchy is visible

<telerik:RadGridView x:Name="radGridView"  ItemsSource="{Binding}"  AutoGenerateColumns="False">
     <telerik:RadGridView.ChildTableDefinitions>
           <telerik:GridViewTableDefinition>
                 <telerik:GridViewTableDefinition.Relation>
                      <telerik:TableRelation IsSelfReference="True">
                        <telerik:TableRelation.FieldNames>
                              <telerik:FieldDescriptorNamePair
                                     ParentFieldDescriptorName="ParentId"
                                  ChildFieldDescriptorName="Id" />
                    </telerik:TableRelation.FieldNames>
                      </telerik:TableRelation>
                </telerik:GridViewTableDefinition.Relation>
               </telerik:GridViewTableDefinition>
            </telerik:RadGridView.ChildTableDefinitions>
         <telerik:RadGridView.Columns>
              <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}" Header="Name" />
          </telerik:RadGridView.Columns>
</telerik:RadGridView>

I don't understand why the list and grid controls has different behaviour in the same situation.

[Vlad]

Hi,

 You need to use TreeListViewTableDefinition similar to our demos. 

Best wishes,
Vlad
the Telerik team