Hi,
I just tried to use the event QueryCellInfo on my page with an Hierarchy Grid.
I have attached on the sub levels, so it is fired when I expand the rows.
Each of the levels other than first has a column defined with ForeignKeyField.
When I Expand that level, there is a javascript exception that doesn't find that property.
If I comment that column, the expand works correctly.
I am using the modified scripts and dll you provided today as a patch.
I tried with Unobtrusive support enabled and disabled.
On an Unbound Column there is a different error regarding a property named "length"
Hope there is a workaround.
Andrea Perazzolo