Enum TreeViewAction Path C++ Link System.Windows.Forms.TreeViewAction, System.Windows.Forms underlying int32 System.Windows.Forms.dll Values 5 NameValueHex Unknown00x00ByKeyboard10x01ByMouse20x02Collapse30x03Expand40x04 Used by 4types with a member, parameter or interface of this type TreeNodeTreeViewTreeViewCancelEventArgsTreeViewEventArgs // System.Windows.Forms.TreeViewAction, System.Windows.Forms enum class TreeViewAction : int32 { Unknown = 0, ByKeyboard = 1, ByMouse = 2, Collapse = 3, Expand = 4, };