ATMLCommonLibrary.forms.ATMLNavigationWindow.testSetNavigationTree_DragOver C# (CSharp) Method

        private void testSetNavigationTree_DragOver( object sender, DragEventArgs e )
        {
            Point targetPoint = testSetNavigationTree.PointToClient( new Point( e.X, e.Y ) );

            // Retrieve the node at the drop location.
            TreeNode targetNode = testSetNavigationTree.GetNodeAt( targetPoint );

            e.Effect = DragDropEffects.None;
            if (targetNode != null && targetNode.Tag is DirectoryInfo)
                e.Effect = DragDropEffects.Move;
        }