Below is a schematic of my code, the full thing would be too much.  I hope it makes sense. I have a problem that in the DeleteRow event, trying to read the DataKey,  the RowEventArgs always returns the value from the equivalent row on the first page of the grid even if I have paged further.

The way I do it may not be right (I am very open to suggestions) but it works for other webforms in my app where I am using an SQLDataSource rather than the WebHierarchichalDatSource I am using here.

I also thought it used to work here but somewhere along the line (maybe after 10.1?) (I am on version 10.2.20102.101) it stopped working.  My users don't appear to have noticed yet!

An UltraWebGrid

<ig:WebHierarchicalDataSource ID="WebHierarchicalDS1" runat="server">
    <DataRelations>
        <ig:DataRelation ChildColumns="Transport Order ID"
            ChildDataViewID="SqlDataSource2_DefaultView" ParentColumns="Transport_Order_ID"
            ParentDataViewID="SqlDataSource1_DefaultView" />
    </DataRelations>
    <DataViews>
        <ig:DataView ID="SqlDataSource1_DefaultView" DataMember="DefaultView"
            DataSourceID="SqlDataSource1" />
        <ig:DataView ID="SqlDataSource2_DefaultView" DataMember="DefaultView"
            DataSourceID="SqlDataSource2" />
    </DataViews>
</ig:WebHierarchicalDataSource


' Code Structure

Page_Load
    If not Postback
        LoadDataset
    endif
End Page_Load


Sub LoadDatset
    Set UltraWebGrid.DataSourceID
    UltrawebGrid.DataBind
End Sub

sub PrepareDataset
    Build SelectCommand for SQLDataSource1
End Sub

Sub SelectionChanged
    LoadDataSet
End SelectionChanged

UltraWebGrid_DataBinding
    PrepareDataSet
End Sub

UltraWebGrid_SortColumn
    LoadDataSet
End Sub

UltraWebGrid_PageIndexChanged
    LoadDataSet
End Sub


UltraWebGrid_DeleteRow(ByVal sender As Object, ByVal e As Infragistics.WebUI.UltraWebGrid.RowEventArgs) Handles UltraWebGrid.DeleteRow

         DeleteRowID = e.Row.DataKey    'Always Returns the DataKey from the first page

End DeleteRow