如何从数据库创建动态 Aspxmenu

Question

**我在 C# 上工作。**我想开发包含菜单但菜单项应该从数据库生成的 asp.net 应用程序。我的意图是管理员可以通过仅在数据库上工作来更改菜单项，而无需更改前端。

**

For example: Web page contains Menu as 
   1. Home
   2. About Us
   3. Contact Us

**

  So if Administrator wants can change  About Us menu to Our Clients menu, so administrator only need to modify in database don't touch front end any how.

  Any small help also appreciated.
  Thanks in advance.

下面是我的 SQL 脚本：

USE [Northwind]
GO
/****** Object:  Table [dbo].[Security_Module_Menu]    Script Date: 08/05/2010 12:56:02 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Security_Module_Menu](
    [Menu_ID] [int] NOT NULL,
    [ParentID] [int] NULL,
    [Menu_Name] [nvarchar](500) NULL,
    [Menu_Description] [nvarchar](500) NULL,
    [Menu_Type] [tinyint] NULL,
    [Tree_Level] [tinyint] NULL,
    [Target_URL] [nvarchar](200) NULL,
    [Image_URL] [nvarchar](200) NULL,
    [ToolTips] [nvarchar](50) NULL,
    [Has_Charge] [bit] NULL,
    [Is_Active] [bit] NULL,
    [Active_Date] [smalldatetime] NULL,
    [Record_Status] [tinyint] NULL,
    [Record_Action_Type] [tinyint] NULL,
 CONSTRAINT [PK_Security_Module_Menu] PRIMARY KEY CLUSTERED 
(
    [Menu_ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (1, 0, N'Form', N'Form', 1, 1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (2, 0, N'Home', N'Home', 1, 1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (3, 0, N'About', N'About', 1, 1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (4, 1, N'Background', N'Background', 1, 2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (5, 1, N'Detail', N'Detail', 1, 2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (6, 3, N'FAQ', N'FAQ', 1, 2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (7, 3, N'Forum', N'Forum', 1, 2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (8, 3, N'ContactUs', N'ContactUs', 1, 2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (9, 2, N'Report_User', N'Report_User', 2, 2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (10, 2, N'Report_Login', N'Report_Login', 2, 2, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (11, 5, N'Admin_Detail', N'Admin_Detail', 1, 3, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)
INSERT [dbo].[Security_Module_Menu] ([Menu_ID], [ParentID], [Menu_Name], [Menu_Description], [Menu_Type], [Tree_Level], [Target_URL], [Image_URL], [ToolTips], [Has_Charge], [Is_Active], [Active_Date], [Record_Status], [Record_Action_Type]) VALUES (12, 5, N'User_Detail', N'User_Detail', 1, 3, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)


Menu_Type=1=Form
Menu_Type=2=Report

ParentID=0=MainMenuItem

Tree_Level=1=MainMenuItem.
Tree_Level=2=SubMenuItem.
Tree_Level=3=Sub-SubMenuItem.

在服务器端，AspxMenu 如何与 XML 文件绑定。其实我需要 1) 使用 Linq 创建 XML 文件。 2）然后我需要将此文件与 AspxMenu 绑定。

使用 Linq 我想创建 .xml 文件，如下所示：

 XElement xml = new XElement("MyMenu",
                  from c in db.Security_Module_Menus
                  where (c.ParentID == 0)
                  orderby c.Menu_ID
                  select new XElement("Item",
                            new XAttribute("Text", c.Menu_Name), new XAttribute("NavigateUrl",c.Target_URL)


                            )
                  );
**Fill AspxMenu like bellow:**
            XmlDataSource1.DataFile = @"C:\contacts.xml";
        XmlDataSource1.XPath = "MyMenu/Item";

我需要帮助来创建 XML 文件。帮助我根据以下标准创建 Xml 文件

    Menu_Type=1=Form
    Menu_Type=2=Report

    ParentID=0=MainMenuItem

    Tree_Level=1=MainMenuItem.
    Tree_Level=2=SubMenuItem.
    Tree_Level=3=Sub-SubMenuItem.

Answer 1

根据设计，ASPxMenu 仅支持通过其 DataSourceID 和 DataSource 属性绑定到分层数据源（那些实现 IHierarchicalDataSource 接口的数据源，例如 XmlDataSource、SiteMapDataSource）。

如果您需要将 ASPxMenu 控件绑定到数据表，则需要一些额外的编码。

我们发布了一个教程，说明如何根据数据库信息动态创建 ASPxMenu 控件： http://www.devexpress.com/Support/Center/e/E49.aspx

本教程是一个项目的简化版本，附在以下问题问题上： http://www.devexpress.com/Support/Center/p/DQ42250.aspx