I have an UltraTree (v 7.3) component on a windows form (VS 2005) that is bound to a .NET class with three properties (two string values and a boolean value).

The class structure is as follows:
public class TreeHierarchy : List<HierarchyItem>{}
public class HierarchyItem{}
HierarcyItem contains the three properties Name(string), Type(string), Check(bool); and two methods: public List<HierarchyItem> Child, public void AddChild(HierarchyItem hierarchyItem)

I populate the above classes as follows, and bind them to the ultraTree in the form load event...
TreeHierarchy treeHierarchy = new TreeHierarchy();
HierarchyItem hi = new HierarchyItem("A", "", true);
treeHierarchy.Add(hi);
hi.AddChild(new HierarchyItem("the quick brown fox", "Add", false));
hi.AddChild(new HierarchyItem("2", "Add", false));

hi = new HierarchyItem("B", "Delete", true);
treeHierarchy.Add(hi);
hi.AddChild(new HierarchyItem("1", "Delete", false));
hi.AddChild(new HierarchyItem("2", "Add", true));

ultraTree1.DataSource = treeHierarchy;

The following is achieved when the ColumnSetGenerated event is fired...
The "Type" property is bound to a valueList and displays images (Using the valueList.DisplayStyle = ValueListDisplayStyle.Picture; code).
The Check property is shown as a checkbox and is set to AllowCellEdit.Full.

All of the above works perfectly :-)

The problem that I have is that when the status of the checkbox changes the BeforeCheck and AfterCheck are not being fired.

I have played around with the NodeStyle.CheckBoxTriState; and NodeStyle.CheckState; properties... but to no avail :(

If anyone could give me a hand it would be very much appreciated.
Thanks