Problem with inner hgrid

Question

Hi All,
Im able to display a hgrid in page, but when i modified the hgrid to display inner hgrid Im unable to display the second level hgrid. please correct me where Im wrong. Please find the following VL, AM, PG. And I have 2 VOs for master record and child record.
View Link
<?xml version='1.0' encoding='windows-1252' ?>
<!DOCTYPE ViewLink SYSTEM "jbo_03_01.dtd">
<ViewLink
Name="ItemsVL2" >
<DesignTime>
<Attr Name="_isCodegen" Value="true" />
<Attr Name="_version" Value="10.1.3.41.57" />
</DesignTime>
<ViewLinkDefEnd
Name="SubTableVO"
Cardinality="1"
Owner="oracle.apps.cz.cx.server.SubTableVO"
Source="true" >
<AttrArray Name="Attributes">
<Item Value="oracle.apps.cz.cx.server.SubTableVO.ItemID" />
<Item Value="oracle.apps.cz.cx.server.SubTableVO.SessionId" />
</AttrArray>
<DesignTime>
<Attr Name="_finderName" Value="SubTableVO" />
<Attr Name="_isUpdateable" Value="true" />
</DesignTime>
</ViewLinkDefEnd>
<ViewLinkDefEnd
Name="AcessorVO"
Cardinality="-1"
Owner="oracle.apps.cz.cx.server.SubTableVO" >
<AttrArray Name="Attributes">
<Item Value="oracle.apps.cz.cx.server.SubTableVO.ParentItemID" />
<Item Value="oracle.apps.cz.cx.server.SubTableVO.SessionId" />
</AttrArray>
<DesignTime>
<Attr Name="_finderName" Value="AcessorVO" />
<Attr Name="_isUpdateable" Value="true" />
</DesignTime>
</ViewLinkDefEnd>
</ViewLink>
AM
<ViewLinkUsage
Name="ItemsVL1"
ViewLinkObjectName="oracle.apps.cz.cx.server.ItemsVL"
SrcViewUsageName="oracle.apps.cz.cx.server.ConfigAM.TableVO1"
DstViewUsageName="oracle.apps.cz.cx.server.ConfigAM.SubTableVO1" >
<DesignTime>
<Attr Name="_isCodegen" Value="true" />
<Attr Name="_version" Value="10.1.3.41.57" />
</DesignTime>
</ViewLinkUsage>
<ViewLinkUsage
Name="ItemsVL2_1"
ViewLinkObjectName="oracle.apps.cz.cx.server.ItemsVL2"
SrcViewUsageName="oracle.apps.cz.cx.server.ConfigAM.SubTableVO1"
DstViewUsageName="oracle.apps.cz.cx.server.ConfigAM.SubTableVO2" >
<DesignTime>
<Attr Name="_isCodegen" Value="true" />
<Attr Name="_version" Value="10.1.3.41.57" />
</DesignTime>
</ViewLinkUsage>
Page
<oa:tree id="ServiceItemRG" text="Service Item" usage="hGrid">
<members>
<oa:nodeDef id="nodeDef1" viewName="TableVO1" viewAttr="Item"/>
<oa:childNode id="childNode1" viewLink="ItemsVL" viewLinkAccessorName="AcessorVO">
<members>
<oa:nodeDef id="nodeDef2" viewName="SubTableVO1" viewAttr="Item"/>
<oa:childNode id="childNode2" ancestorNode="oracle/apps/cz/cx/webui/ItemsPG.childNode1"
viewLink="ItemsVL2" viewLinkAccessorName="AcessorVO"/>
</members>
</oa:childNode>
</members>
</oa:tree>
I executed query for master records VO only like ItemID = 2904 , I haven't executed any query for child records or for the sub child record.
The data in the database would be
Item ItemID ParentItem
Master Record 2904
Child Record 0912 2904
Sub Child Record 0912
only the first level of hgrid is displayed, cannot see the second level or the records of sub child.
Thanks,

Answer 1

Hi,
Really thanks for the reply, its a 2 level hgrid. Please correct me if Im wrong you can find the snippets of xmls in the above post. And one thing is that after adding ItemsVL1 which is first level hgrid i tried adding ItemsVL2 to the child the instance it created is SubTableVO2 but i manual edited the xml changing it to SubTableVO1 I guess we need to use the same VO instance for child and second level parent.
Ex
In AM for first level hgrid the parent Vo is
--------------TableVO1 (to this parent vo I added child VO through ItemsVL1)
------------------SubTableVO1 via ItemsVL1(and to this child VO, I added second level hgrid View link ItemsVL2)
------------------------SubTableVO1 via ItemsVL2(so actually here it created instance SubTableVO2 but I manually edited the xml and changed to SubTableVO1, as I guess we need to use the same Vo for first level child and second level parent, I think here I may be worng but frankly I tried with SubTableVO2 also but of no use.)
So any correections , please let me know.
Thanks,