TreeView 和 Menu 的用法
TreeView和Menu都是用于导航，且与数据库绑定时的用法也极为相近，下面给出两个实例，请比较业务层的绑定方法。
1. Tree.aspx
1. Tree.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Tree.aspx.cs" Inherits="NavTree"
EnableViewState="false" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>LeftMenu_Tree</title></head><body bgcolor="#DDEDFD"> <form id="form1" runat="server"> <asp:LinkButton ID="lbtExpand" runat="server" OnClick="lbtExpand_Click" ToolTip="全部展开"> 全部展开 </asp:LinkButton> <asp:LinkButton ID="lbtCollapse" runat="server" OnClick="lbtCollapse_Click" Visible="false"> 全部收缩 </asp:LinkButton> <asp:TreeView ID="tvMenu" SkinID="tvClass" runat="server" ShowLines="true" NodeWrap="false"> </asp:TreeView> </form></body></html>2. Tree.aspx.cs
using System;using System.Data;using System.Data.SqlClient;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class NavTree : System.Web.UI.Page{
Sys.BLL.Navigation myBiz = new Sys.BLL.Navigation(); private void Page_Load(object sender, System.EventArgs e)
{ if (!Page.IsPostBack) { BindTree();
} } protected void BindTree() { //根据当前用户ID加载目录树 myBiz.BindTree(tvMenu, Framework.Globals.CurrentUser.UserID); } //全部展开节点 protected void lbtExpand_Click(object sender, EventArgs e) { tvMenu.ExpandAll(); lbtExpand.Visible = false; lbtCollapse.Visible = true; } //全部折叠节点 protected void lbtCollapse_Click(object sender, EventArgs e) { tvMenu.CollapseAll(); lbtExpand.Visible = true; lbtCollapse.Visible = false; }}3. Menu.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Menu.aspx.cs" Inherits="NavMenu" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>Top</title></head><body> <form id="form1" runat="server"> <asp:Menu ID="Menu1" runat="server" BackColor="#f1f1f1" ForeColor="Black" Font-Size="12px" Font-Names="宋体" BorderColor="background" BorderStyle="Solid" BorderWidth="0px" StaticSubMenuIndent="10px" Height="20px" Orientation="Horizontal" StaticEnableDefaultPopOutImage="False"> <StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" BorderWidth="1px" BorderColor="#f1f1f1" /> <StaticHoverStyle BackColor="#cccccc" BorderColor="background" BorderStyle="Solid" BorderWidth="1px" /> <DynamicHoverStyle BackColor="#C6DDFE" BorderColor="background" BorderStyle="Solid" BorderWidth="0px" /> <DynamicMenuStyle BackColor="Menu" BorderStyle="Outset" BorderWidth="1px" HorizontalPadding="2px" VerticalPadding="0px" BorderColor="MenuBar" /> <DynamicMenuItemStyle HorizontalPadding="2px" VerticalPadding="2px" /> </asp:Menu> </form></body></html>4. Menu.aspx.cs
using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;public partial class NavMenu : System.Web.UI.Page{ Sys.BLL.Navigation myBiz = new Sys.BLL.Navigation(); protected void Page_Load(object sender, EventArgs e) { if (!Page.IsPostBack) { myBiz.BindMenu(Menu1); } }}5. 业务层：App_Code/Sys.BLL.Navigation.cs
using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;namespace Sys.BLL{ /// <summary> /// 系统导航 业务层 /// </summary> public class Navigation : Framework.BLL.BizObject {
变量 构造函数 目录树(TreeView) 导航菜单(Menu) }//class end}
