请问：如何通过button按钮控制TreeView控件节点的选择

Question

这个简单啊  直接获取当前选中节点的ＩＤ　然后再Click事件中重新邦定树啊！

Answer 1

this.treeView1.SelectedNode = this.treeView1.Nodes[1].Nodes[1];
this.treeView1.Focus();

Answer 2

就是treeview的selectedItem属性

Answer 3

 #region TreeView节点上下移动        /// <summary>
        /// treeview子节点上下移动
        /// </summary>
        /// <param name="ToIndex"></param>
        /// <param name="treeNode"></param>
        /// <param name="tvname"></param>
        /// <returns></returns>
        private TreeNode MoveTo(int ToIndex, TreeNode treeNode)
        {
            Object NewNode = treeNode.Clone();
            treeNode.Parent.Nodes.Insert(ToIndex, (TreeNode)NewNode);
            treeNode.Remove();
            return (TreeNode)NewNode;
        }        /// <summary>
        /// treeview根节点上下移动
        /// </summary>
        /// <param name="ToIndex"></param>
        /// <param name="treeNode"></param>
        /// <param name="tvname"></param>
        /// <returns></returns>
        private TreeNode MoveToRoot(int ToIndex, TreeNode treeNode, TreeView tvname)
        {
            Object NewNode = treeNode.Clone();
            tvname.Nodes.Insert(ToIndex, (TreeNode)NewNode);
            treeNode.Remove();
            return (TreeNode)NewNode;
        }
        public void TreeviewUp(TreeView tv)
        {
            if (tv.SelectedNode != null && tv.SelectedNode.Level == 0)
            {
                int oldindex = tv.SelectedNode.Index;
                TreeNode oldnode = tv.Nodes[oldindex];
                tv.BeginUpdate();
                TreeNode nNode = MoveToRoot(oldnode.Index - 1, oldnode, tv);
                tv.EndUpdate();
                tv.SelectedNode = nNode;
                tv.Focus();
            }
            else
            {
                if (tv.SelectedNode != null && tv.SelectedNode.Parent != null)
                {
                    int oldindex = tv.SelectedNode.Index;
                    TreeNode oldnode = tv.SelectedNode.Parent.Nodes[oldindex];
                    tv.BeginUpdate();
                    TreeNode nNode = MoveTo(oldnode.Index - 1, oldnode);
                    tv.EndUpdate();
                    tv.SelectedNode = nNode;
                    tv.Focus();
                }
            }
        }        public void TreeviewDown(TreeView tv)
        {
            if (tv.SelectedNode != null && tv.SelectedNode.Level == 0)
            {
                int oldindex = tv.SelectedNode.Index;
                TreeNode oldnode = tv.Nodes[oldindex];
                tv.BeginUpdate();
                TreeNode nNode = MoveToRoot(oldnode.Index + 2, oldnode, tv);
                tv.EndUpdate();
                tv.SelectedNode = nNode;
                tv.Focus();
            }
            else
            {
                if (tv.SelectedNode != null && tv.SelectedNode.Parent != null)
                {
                    int oldindex = tv.SelectedNode.Index;
                    TreeNode oldnode = tv.SelectedNode.Parent.Nodes[oldindex];
                    tv.BeginUpdate();
                    TreeNode nNode = MoveTo(oldnode.Index + 2, oldnode);
                    tv.EndUpdate();
                    tv.SelectedNode = nNode;
                    tv.Focus();
                }
            }
        }
        #endregion

Answer 4

就用TreeviewUp和TreeviewDown方法，传Treeview对象当作参数