private Point Position = new Point(0, 0);
        private void treeFileView_ItemDrag(object sender, ItemDragEventArgs e)
        {
            DoDragDrop(e.Item, DragDropEffects.Move); 
        }

        private void treeFileView_DragEnter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(typeof(TreeNode)))
            {
                e.Effect = DragDropEffects.Move;
            }
            else
                e.Effect = DragDropEffects.None;

        }

        string filePath = Application.StartupPath.ToString() + "\\MyFiles\\";
        private void treeFileView_DragDrop(object sender, DragEventArgs e)
        {
            TreeNode myNode = null;
            if (e.Data.GetDataPresent(typeof(TreeNode)))
            {
                myNode = (TreeNode)(e.Data.GetData(typeof(TreeNode)));
            }
            else
            {
                MessageBox.Show("error");
            }

            Position.X = e.X;
            Position.Y = e.Y;
            Position = treeFileView.PointToClient(Position);
            TreeNode DropNode = treeFileView.GetNodeAt(Position);
            if (DropNode.Parent == myNode || DropNode == myNode)
            {

            }
            else if (DirAndFileOperator.IsFile(DropNode))
            {
            
            }
            else
            {
                //DirAndFileOperator.MoveFolder(filePath + myNode.FullPath, filePath + DropNode.FullPath + @"\" + myNode.Name);
                TreeNode DragNode = myNode;
                myNode.Remove();
                DropNode.Nodes.Add(DragNode);
            }
            treeFileView.SelectedNode = DropNode;
            DropNode.Expand();
        }

        private void treeFileView_DragOver(object sender, DragEventArgs e)
        {
            TreeNode myNode = null;
            if (e.Data.GetDataPresent(typeof(TreeNode)))
            {
                e.Effect = DragDropEffects.Move;
                myNode = (TreeNode)(e.Data.GetData(typeof(TreeNode)));
            }
            else
                e.Effect = DragDropEffects.None;
            Position.X = e.X;
            Position.Y = e.Y;
            Position = treeFileView.PointToClient(Position);
            TreeNode DropNode = treeFileView.GetNodeAt(Position);
            treeFileView.SelectedNode = DropNode;
        }

------解决方案--------------------

做了一下，很容易。把代码给你参考一下
C# code

    private void Form1_Load(object sender, EventArgs e)
    {
        //在Load的时候把picturebox的AllowDrop属性设置为true。
         // ps:pictureBox的属性只能通过写代码设置，并且还没有智能感知
        this.pictureBox1.AllowDrop = true;
    }

    //在listView的ItemDrag里把摄像机名字传送
    private void listView1_ItemDrag(object sender, ItemDragEventArgs e)
    {
        DoDragDrop(e.Item.ToString(), DragDropEffects.Copy);
    }

    //判断是不是可以接收的数据类型
    private void pictureBox1_DragEnter(object sender, DragEventArgs e)
    {
        if (e.Data.GetDataPresent(typeof(string)))