Returns the index of a named item.
This functionality is supported only if you are using the Open Agent.
iIndex = treeview.FindItemInColumn (item, column)
|item||The item to find. STRING.|
|column||The column to find. INTEGER.|
FindItemInColumn returns the global index of a treeview item specified by path. The returned index is the flat index of the item, as if the treeview were a simple list box. As with all treeview functions, the index is relative to the items which are currently viewable (that is, those that have no collapsed ancestors).