This class encapsulates the data for the TreeView.AfterXXX events. You can determine the Action that raised the event and the Node that has been modified.

public class TreeViewEventArgs : EventArgs {
// Public Constructors
   public TreeViewEventArgs(TreeNode node);
   public TreeViewEventArgs(TreeNode node, TreeViewAction action);
// Public Instance Properties
   public TreeViewAction Action{get; }
   public TreeNode Node{get; }
}

Hierarchy

System.Object System.EventArgs TreeViewEventArgs

Passed To

System.Windows.Forms.Design.ComponentEditorForm.OnSelChangeSelector(), TreeView.{OnAfterCheck(), OnAfterCollapse(), OnAfterExpand(), OnAfterSelect()}, TreeViewEventHandler.{BeginInvoke(), Invoke()}