Duplicates in SelfHierarchy RadGrid

[Torsten]

I have a problem with RadGrid in "SelfHierarchyMode".

My settings in aspx:

<telerik:RadGrid runat="server" ID="rgArtikelSuche" AllowSorting="false" AllowFilteringByColumn="false"
AutoGenerateColumns="false" AllowMultiRowSelection="true" Visible="false" OnNeedDataSource="rgArtikelSuche_NeedDataSource" >
<ClientSettings AllowKeyboardNavigation="true" AllowExpandCollapse="true">
<Selecting AllowRowSelect="true" UseClientSelectColumnOnly="true" />
</ClientSettings>
<MasterTableView HierarchyLoadMode="Client" HierarchyDefaultExpanded="true"
DataKeyNames="Key, GroupKey">
<SelfHierarchySettings ParentKeyName="Parent" KeyName="GroupKey" />
</MasterTableView>
</telerik:RadGrid>

My datasource look like:

Key    GroupKey    Parent    Description
1        A1                null         A1
2        B1                A1          B1
3        B2                A1          B2
4        A2                null         A2
5        B3                A2          B3

The Elements B1, B2 and B3 are shown on ClientSide under their parent Element AND direct under the root, so they were shown twice.

WHY????

[Maria Ilieva]

Hi Torsten,

I would suggest you to review the following online demo which shows the correct approach for building self referencing hierarchy. I hope this helps.

Kind regards,
Maria Ilieva
the Telerik team