Asp.Net里面实现左边的菜单栏

Question

菜单都是在数据库里面查询的，根据用户的权限动态生成的，第二张图片是在WinForm里面
做的，现在想在Web里面做出一模一样的功能，如何把菜单输出到页面上呢？并且是按照对应的
主菜单进行显示的。 

Answer 1

楼主可以用Treeview来实现动态隐藏节点！            TreeNode tn0, tn00, tn01, tn02, tn03, tn04, tn05, tn06, tn1, tn10, tn11, tn12, tn13, tn14, tn2, tn20, tn21, tn22, tn23, tn24, tn3, tn4, tn5;
            tn0 = this.TreeView1.Nodes[0];
            tn00 = this.TreeView1.Nodes[0].ChildNodes[0];
            tn01 = this.TreeView1.Nodes[0].ChildNodes[1];
            tn02 = this.TreeView1.Nodes[0].ChildNodes[2];
            tn03 = this.TreeView1.Nodes[0].ChildNodes[3];
            tn04 = this.TreeView1.Nodes[0].ChildNodes[4];
            tn05 = this.TreeView1.Nodes[0].ChildNodes[5];
            tn06 = this.TreeView1.Nodes[0].ChildNodes[6];
            tn1 = this.TreeView1.Nodes[1];
            tn10 = this.TreeView1.Nodes[1].ChildNodes[0];
            tn11 = this.TreeView1.Nodes[1].ChildNodes[1];
            tn12 = this.TreeView1.Nodes[1].ChildNodes[2];
            tn13 = this.TreeView1.Nodes[1].ChildNodes[3];
            tn14 = this.TreeView1.Nodes[1].ChildNodes[4];
            tn2 = this.TreeView1.Nodes[2];
            tn20 = this.TreeView1.Nodes[2].ChildNodes[0];
            tn21 = this.TreeView1.Nodes[2].ChildNodes[1];
            tn22 = this.TreeView1.Nodes[2].ChildNodes[2];
            tn23 = this.TreeView1.Nodes[2].ChildNodes[3];
            tn24 = this.TreeView1.Nodes[2].ChildNodes[4];
            tn3 = this.TreeView1.Nodes[3];
            tn4 = this.TreeView1.Nodes[4];
            tn5 = this.TreeView1.Nodes[5];
            string qx = Session["qx"].ToString();
            string name = Session["uname"].ToString();
            if (qx == "17")
            {
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn20);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn21);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn22);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn24);
                this.TreeView1.Nodes.Remove(tn0);
                this.TreeView1.Nodes.Remove(tn1);            }
            else if (name == "admin" && qx == "1")
            {
                this.TreeView1.Visible = true;
            }
            else if (qx == "2")
            {
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn11);
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn13);
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn14);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn22);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn23);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn24);
                this.TreeView1.Nodes.Remove(tn0);
                this.TreeView1.Nodes.Remove(tn4);
                this.TreeView1.Nodes.Remove(tn5);
                this.TreeView1.Nodes.Remove(tn3);
            }
            else if (qx == "5")
            {
                this.TreeView1.Nodes[0].ChildNodes.Remove(tn03);
                this.TreeView1.Nodes.Remove(tn1);
                this.TreeView1.Nodes.Remove(tn2);
                this.TreeView1.Nodes.Remove(tn3);
                this.TreeView1.Nodes.Remove(tn4);
                this.TreeView1.Nodes.Remove(tn5);
            }
            else if (qx == "6")
            {
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn10);
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn12);
                this.TreeView1.Nodes.Remove(tn0);
                this.TreeView1.Nodes.Remove(tn2);
                this.TreeView1.Nodes.Remove(tn3);
                this.TreeView1.Nodes.Remove(tn4);
                this.TreeView1.Nodes.Remove(tn5);            }            else if (qx == "16")
            {
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn20);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn21);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn23);
                this.TreeView1.Nodes.Remove(tn0);
                this.TreeView1.Nodes.Remove(tn1);
                this.TreeView1.Nodes.Remove(tn3);
                this.TreeView1.Nodes.Remove(tn4);
                this.TreeView1.Nodes.Remove(tn5);
            }
            else if (qx == "20")
            {
                this.TreeView1.Nodes[0].ChildNodes.Remove(tn00);
                this.TreeView1.Nodes[0].ChildNodes.Remove(tn01);
                this.TreeView1.Nodes[0].ChildNodes.Remove(tn02);
                this.TreeView1.Nodes[0].ChildNodes.Remove(tn04);
                this.TreeView1.Nodes[0].ChildNodes.Remove(tn05);
                this.TreeView1.Nodes[0].ChildNodes.Remove(tn06);
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn10);
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn11);
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn12);
                this.TreeView1.Nodes[1].ChildNodes.Remove(tn14);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn22);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn23);
                this.TreeView1.Nodes[2].ChildNodes.Remove(tn24);
                this.TreeView1.Nodes.Remove(tn3);
                this.TreeView1.Nodes.Remove(tn4);
                this.TreeView1.Nodes.Remove(tn5);
            }
            else
            {
                this.TreeView1.Visible = false;
            }
          

Answer 2

怎么不好控制啊，我上面不是说了吗， if (qx == "17")如果 if (权限 == "")隐藏你要隐藏的字段！

Answer 3

我在WinForm里面是用的一个控件，然后一个循环就全部出来了，我就是想知道在Web里面如何把菜单输出来啊。 private void Menu_Load()
        {
            dt_role = new BLL.sys_SetRoleManager().GetUserRoleByUserID(allensingleton.UserID);
            _outlookBar = new LumiSoft.UI.Controls.WOutlookBar.WOutlookBar();
            //_outlookBar.BorderStyle = BorderStyle.FixedSingle; 
            _outlookBar.ImageList = imageList;
            _outlookBar.ImageListSmall = imageList;
            _outlookBar.Dock = DockStyle.Fill;
            _outlookBar.ItemClicked += wOutlookBar_ItemClicked;
            _outlookBar.BarClicked += wOutlookBar_BarClicked;
            _outlookBar.ViewStyle.BarClientAreaColor = Color.White;
            _outlookBar.ViewStyle.BarItemHotTextColor = Color.Black;
            _outlookBar.ViewStyle.BarItemTextColor = Color.Black;
            Item it = null;
            Bar bar = null;
            string strMenu = string.Empty;
            for (int i = 0; i < dt_role.Rows.Count; i++)
            {
                if (string.IsNullOrEmpty(strMenu) || strMenu != dt_role.Rows[i]["MenuGroupName"].ToString())
                {
                    bar = _outlookBar.Bars.Add(dt_role.Rows[i]["MenuGroupName"].ToString());
                    bar.ItemsStyle = ItemsStyle.IconSelect;
                    strMenu = dt_role.Rows[i]["MenuGroupName"].ToString();
                }                                             it = bar.Items.Add(dt_role.Rows[i]["FunctionName"].ToString(), dt_role.Rows[i]["FrmName"].ToString(),
                                   int.Parse(dt_role.Rows[i]["ICO"].ToString()), true, dt_role.Rows[i]["FrmName"].ToString());
                it.AllowStuck = false;
            }
            ploutlookBar.Controls.AddRange(new Control[] { _outlookBar });
        }

Answer 4

一个比较常用的方法.
webservice处理数据读取,把你从数据库里取出的数据封装成json或者xml字符串对象.
前台ajax调用webservice.接收到这个字符串,用each解一下输出成dt dl或者tr td就行了

Answer 5

我现在得到的数据本身就是一个 dt 啊，只是不知道如何把 dt 里面的内容输出到网页上，
我试过：
StringBuilder sb = new StringBuilder();
sb.Append()
虽然上面的代码可以输出来，但是还是不够完善。

Answer 6

我现在的数据本身就是一个 dt，如何把dt里面的内容呈现在页面?

Answer 7

你去百度搜个js导航菜单样式，然后 通过后台代码控制生成HTML页面代码的方式 很容易实现，找个js+css导航菜单就行了