Changing Hierarchy on Bound Grid

[Peter]

I am looking for a way to change the hierarchy levels at runtime based on a user's selection. When I try to change them with the same code I used to create the original, the call gridBinder.AddRelation(Relation) returns nothing causing errors when I try to use the HierarchyLevel it returns.

It works fine the first time through, but fails when I try to change.

Any help would be appreciated.
peter

[Administrator]

In 1.6.1.x, there is a

grid.Binder.ResetHierarchyLevels

that you can use to clear the existing levels.