Self-referencing Hierarchy and DetailTable count

[Sohel]

Hi,

I have a self-referencing hierachical radGrid.  I am loading data thru the NeedDataSource event handler.  When I have 3 levels of hierarchy, the gridInstance.MasterTableView.DetailTables.count shows 1 , MasterTableViewDetailTables[0].DetaitTables.count is 1, so far so good. Now when I look at the last (the lowest level) GridTableView, its DetaitTables.Count is also 1 whereas this GridTableView does not have any children.  What am I missing? Is the DetailTables count always 1 when using Sel-Referencing Hierarcy? even for the GridTableView which has no chidren? Using RadControls for Ajax 2010_1_519 and Framework 3.5.

Thanks in advance for your help.

[Veli]

Hello Sohel,

Yes, the GridTableView.DetailTables collection indicates how many detail tables would be created per data item. For example, if you define 2 nested tables for the MasterTableView:

<telerik:RadGrid>
    <MasterTableView>
        <DetailTables>
            <telerik:GridTableView>
            </telerik:GridTableView>
            <telerik:GridTableView>
            </telerik:GridTableView>
        </DetailTables>
    </MasterTableView>
</telerik:RadGrid>

the RadGrid.MasterTableView.DetailTables would have 2 GridTableView items inside, even though some items may not have detail tables at all. So, effectively, the GridTableView.DetailTables collection indicates how many detail tables per level is there fore the GridTableView, not how many detail tables are showing for each item.

If you share with us what you are trying to implement, we may have a better approach for getting to know the number of initialized detail tables.

Regards,
Veli
the Telerik team