private void TV_MenuInfo_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
if (e.Button == MouseButtons.Right && TV_MenuInfo.SelectedNode != null)//判断你点的是不是右键
{
Point ClickPoint = new Point(e.X, e.Y);
TreeNode CurrentNode = TV_MenuInfo.GetNodeAt(ClickPoint);
if (CurrentNode != null)//判断你点的是不是一个节点
{
ContextMenuStrip formMenu = new ContextMenuStrip();
TV_MenuInfo.ContextMenuStrip = formMenu;
TV_MenuInfo.SelectedNode = CurrentNode;//选中这个节点
//TV_MenuInfo.SelectedNode.ForeColor =Color.Lime; ;//节点颜色设置
ToolStripMenuItem[] formMenuItemList = new ToolStripMenuItem[5];
formMenuItemList[0] = new ToolStripMenuItem("上移", null, new EventHandler(menuinfo_next));
formMenuItemList[1] = new ToolStripMenuItem("下移", null, new EventHandler(menuinfonext));
formMenuItemList[2] = new ToolStripMenuItem("修改", null, new EventHandler(TV_MenuInfo_Click)); //---修改的方法为添加
formMenuItemList[3] = new ToolStripMenuItem("刷新", null, new EventHandler(InitMenu)); //---修改的方法为添加
formMenuItemList[4] = new ToolStripMenuItem("删除", null, new EventHandler(btn_Delete_Click));
formMenu.Items.AddRange(formMenuItemList);
this.ContextMenuStrip = formMenu;
}
}
}
private void TV_MenuInfo_DragDrop(object sender, DragEventArgs e)
{
TreeNode myNode = null;
if (e.Data.GetDataPresent(typeof(TreeNode)))
{
myNode = (TreeNode)(e.Data.GetData(typeof(TreeNode)));
}
else
{
MessageBox.Show("错误操作！");
}
Position.X = e.X;
Position.Y = e.Y;
Position = TV_MenuInfo.PointToClient(Position);
TreeNode DropNode = this.TV_MenuInfo.GetNodeAt(Position);
// 1.目标节点不是空。2.目标节点不是被拖拽接点的字节点。3.目标节点不是被拖拽节点本身
if (DropNode != null && DropNode.Parent != myNode && DropNode != myNode)
{
TreeNode DragNode = myNode;
// 将被拖拽节点从原来位置删除。
myNode.Remove();
// 在目标节点下增加被拖拽节点
DropNode.Nodes.Add(DragNode);
LinQBaseDao.Query("update MenuInfo set menu_otherid='" + Convert.ToInt32(DropNode.Tag) + "' where menu_id='" + Convert.ToInt32(myNode.Tag) + "'");
}
// 如果目标节点不存在，即拖拽的位置不存在节点，那么就将被拖拽节点放在根节点之下
if (DropNode == null)
{
TreeNode DragNode = myNode;
myNode.Remove();
TV_MenuInfo.Nodes.Add(DragNode);
LinQBaseDao.Query("update MenuInfo set menu_otherid=0 where menu_id='" + Convert.ToInt32(myNode.Tag) + "'");
}
}
