constants ViewItemStateEnum
The ViewItemStateEnum type specifies different states for an item. The ViewItemStateStartChanging / ViewItemStateEndChanging notifies your application that an item expanded or activated / selected, or when a check box has been clicked / changed.  The ViewItemStateEnum type supports the following values:

NameValueDescription
exExpandItem1 An item is expanded or collapsed.
exCheckItem2 An item is checked or unchecked.
exActivateItem3 An item is activated / selected