轻量级小型网站导航条

本博文，教大家做一个轻量级的小型网站的导航条。
在网站的后台管理界面，就是可以管理这些导航内容。添加，删除，更新等，在后台能够预览到导航条效果。

做到信息存储，需要在数据库创建相关的表。对表进行操作，添加编辑等，需要运用存储过程。

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

SET ANSI_PADDING ON
GO

-- =============================================
-- Author:        Insus.NET
-- Create date: 2013-07-20
-- Description:    Navigation bar table.
-- =============================================
CREATE TABLE [dbo].[NavigationBar](
    [NavigationBar_nbr] [smallint] IDENTITY(1,1) NOT NULL,
    [Title] [nvarchar](40) NOT NULL,
    [Url] [varchar](200) NULL,
    [CreateBy] [nvarchar](30) NOT NULL,
    [CreateDate] [datetime] NOT NULL,
    [UpdateBy] [nvarchar](30) NOT NULL,
    [UpdateDate] [datetime] NOT NULL,
 CONSTRAINT [PK__Navigati__B5B5D0884589517F] PRIMARY KEY CLUSTERED 
(
    [NavigationBar_nbr] 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

SET ANSI_PADDING OFF
GO

ALTER TABLE [dbo].[NavigationBar] ADD  CONSTRAINT [DF__Navigatio__Creat__477199F1]  DEFAULT (getdate()) FOR [CreateDate]
GO

ALTER TABLE [dbo].[NavigationBar] ADD  CONSTRAINT [DF__Navigatio__Updat__4865BE2A]  DEFAULT (getdate()) FOR [UpdateDate]
GO

Insus.NET写了一个触发器，就是第一笔(默认)记录不被删除，但可以更改。

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        Insus.NET
-- Create date: 2013-07-20
-- Description:    Default navigation bar do not allow delete.
-- =============================================
CREATE TRIGGER [dbo].[tri_NavigationBar_Delete]
   ON [dbo].[NavigationBar]
   FOR DELETE
AS 
BEGIN    
    IF @@ROWCOUNT = 0 
        RETURN
    SET NOCOUNT ON;
    
    DECLARE @nb_nbr TINYINT

    SELECT @nb_nbr = [NavigationBar_nbr] FROM deleted
    IF     @nb_nbr = 1
    BEGIN
        RAISERROR(N'默认导航条不允许删除。',16,1)
        ROLLBACK TRANSACTION
    END
        
END

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        Insus.NET
-- Create date: 2013-07-20
-- Description:    get all navigation bar.
-- =============================================
CREATE PROCEDURE [dbo].[usp_NavigationBar_GetAll]
AS
SELECT [NavigationBar_nbr],[Title],[Url] FROM [dbo].[NavigationBar]
GO

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

-- =============================================
-- Author:        Insus.NET
-- Create date: 2013-07-20
-- Description:    add navigation bar.
-- =============================================
CREATE PROCEDURE [dbo].[usp_NavigationBar_Insert]
(
    @Title NVARCHAR(40),
    @Url VARCHAR(200),
    @CreateBy NVARCHAR(30)
)
AS
DECLARE @UpdateBy NVARCHAR(30) = @CreateBy
INSERT INTO [dbo].[NavigationBar] ([Title],[Url],[CreateBy],[UpdateBy]) VALUES (@Title,@Url,@CreateBy,@UpdateBy)


GO

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

-- =============================================
-- Author:        Insus.NET
-- Create date: 2013-07-20
-- Description:    update navigation bar.
-- =============================================
CREATE PROCEDURE [dbo].[usp_NavigationBar_Update]
(
    @NavigationBar_nbr SMALLINT,
    @Title NVARCHAR(40),
    @Url VARCHAR(200),
    @UpdateBy NVARCHAR(30)
)
AS
UPDATE [dbo].[NavigationBar] SET [Title] = @Title,[Url] = @Url,[UpdateBy] = @UpdateBy,[UpdateDate] = CURRENT_TIMESTAMP  WHERE [NavigationBar_nbr] = @NavigationBar_nbr


GO

SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        Insus.NET
-- Create date: 2013-07-20
-- Description:    delete navigation bar.
-- =============================================
CREATE PROCEDURE [dbo].[usp_NavigationBar_Delete]
(
    @NavigationBar_nbr SMALLINT
)
AS
DELETE FROM  [dbo].[NavigationBar] WHERE [NavigationBar_nbr] = @NavigationBar_nbr


GO

 有了数据表，还要写一个类别：

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;

namespace Insus.NET
{
    public class NavigationBar
    {
        private short? _NavigationBar_nbr;
        private string _Title;
        private string _Url;
        private string _CreateBy;
        private string _UpdateBy;

        public short? NavigationBar_nbr
        {
            get { return _NavigationBar_nbr; }
            set { _NavigationBar_nbr = value; }
        }
        public string Title
        {
            get { return _Title; }
            set { _Title = value; }
        }
        public string Url
        {
            get { return _Url; }
            set { _Url = value; }
        }
        public string CreateBy
        {
            get { return _CreateBy; }
            set { _CreateBy = value; }
        }
        public string UpdateBy
        {
            get { return _UpdateBy; }
            set { _UpdateBy = value; }
        }

        BusinessBase objBusinessBase = new BusinessBase();

        public DataTable GetAll()
        {
            return objBusinessBase.GetDataToDataSet("usp_NavigationBar_GetAll").Tables[0];
        }

        public void Insert()
        {
            Parameter[] parameter = { 
                                        new Parameter ("@Title",SqlDbType.NVarChar,-1,_Title),
                                        new Parameter ("@Url",SqlDbType.VarChar,-1,_Url),
                                        new Parameter ("@CreateBy",SqlDbType.NVarChar,-1,_CreateBy)
                                    };
            objBusinessBase.ExecuteProcedure("usp_NavigationBar_Insert", parameter);
        }

        public void Update()
        { 
            Parameter[] parameter = { 
                                        new Parameter ("@NavigationBar_nbr",SqlDbType.SmallInt,2,_NavigationBar_nbr),
                                        new Parameter ("@Title",SqlDbType.NVarChar,-1,_Title),
                                        new Parameter ("@Url",SqlDbType.VarChar,-1,_Url),
                                        new Parameter ("@UpdateBy",SqlDbType.NVarChar,-1,_UpdateBy)
                                    };
            objBusinessBase.ExecuteProcedure("usp_NavigationBar_Update", parameter);        
        }

        public void Delete()
        { 
            Parameter[] parameter = { 
                                        new Parameter ("@NavigationBar_nbr",SqlDbType.SmallInt,2,_NavigationBar_nbr)
                                    };
            objBusinessBase.ExecuteProcedure("usp_NavigationBar_Delete", parameter);       
        }
    }
}

 
在网站的后台，创建一个网页以作添加记录

 <asp:Table ID="Table1" runat="server" CellPadding="3" CellSpacing="0" Width="100%">
                    <asp:TableHeaderRow Height="25px" BackColor="#efebde" BorderWidth="1" BorderColor="#c0c0c0">
                        <asp:TableHeaderCell BackColor="#efebde" BorderWidth="1" BorderColor="#c0c0c0" Width="15%">
                        菜单名称
                        </asp:TableHeaderCell>
                        <asp:TableHeaderCell BackColor="#efebde" BorderWidth="1" BorderColor="#c0c0c0">
                        链接
                        </asp:TableHeaderCell>
                        <asp:TableHeaderCell BackColor="#efebde" BorderWidth="1" BorderColor="#c0c0c0" Width="8%">
                        操作
                        </asp:TableHeaderCell>
                    </asp:TableHeaderRow>
                    <asp:TableRow Height="25px">
                        <asp:TableCell BorderWidth="1" BorderColor="#c0c0c0">
                            <asp:TextBox ID="TextBoxTitle" runat="Server" />
                            <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="TextBoxTitle"
                                Display="none" ErrorMessage="名称栏位请求值。" ValidationGroup="vg_btnAdd"></asp:RequiredFieldValidator>
                        </asp:TableCell><asp:TableCell BorderWidth="1" BorderColor="#c0c0c0">
                            <asp:TextBox ID="TextBoxUrl" runat="Server"  Width="300"/>
                        </asp:TableCell><asp:TableCell BorderWidth="1" BorderColor="#c0c0c0">
                            <asp:ValidationSummary ID="ValidationSummary1" runat="server" EnableClientScript="true"
                                ShowMessageBox="true" ShowSummary="false" ValidationGroup="vg_btnAdd" />
                            <asp:ImageButton ID="InsertButton" runat="server" OnClick="InsertButton_Click" ImageAlign="absmiddle"
                                ImageUrl="~/SiteMgt/Images/i.gif" ToolTip="Insert" ValidationGroup="vg_btnAdd" />                           
                        </asp:TableCell></asp:TableRow></asp:Table>

去网页.aspx.vb，实例化刚才创建好的NavigationBar类别：

Dim objNavigationBar As New NavigationBar()

添加铵钮Click事件。

 

 
有了添加记录功能，我们还需要把添加在数据表的记录显示出来，还要能够对它们编辑，更新或删除。

<asp:GridView ID="GvNavigationBar" runat="server" DataKeyNames="NavigationBar_nbr" CellPadding="3"
                    CellSpacing="0" BorderWidth="0" BorderColor="#c0c0c0" AutoGenerateColumns="false" ShowHeader="false"
                    OnRowEditing="GvNavigationBar_RowEditing" OnRowCancelingEdit="GvNavigationBar_RowCancelingEdit"
                    OnRowUpdating="GvNavigationBar_RowUpdating" OnRowDeleting="GvNavigationBar_RowDeleting"
                    Width="100%">
                    <Columns>
                        <asp:TemplateField>
                            <ItemStyle BorderWidth="1" BorderColor="#c0c0c0" Width="15%" Height="25" />
                            <ItemTemplate>
                                <%# Eval("Title")%>
                            </ItemTemplate>
                            <EditItemTemplate>
                                <asp:TextBox ID="TextBoxTitle" runat="server" Text='<%# Eval("Title")%>'></asp:TextBox><asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ControlToValidate="TextBoxTitle"
                                    Display="none" ErrorMessage="名称段请求值。" ValidationGroup="vg_Edit"></asp:RequiredFieldValidator></EditItemTemplate></asp:TemplateField><asp:TemplateField>
                            <ItemStyle BorderWidth="1" BorderColor="#c0c0c0" />
                            <ItemTemplate>
                                <%# Eval("Url")%>
                            </ItemTemplate>
                            <EditItemTemplate>
                                <asp:TextBox ID="TextBoxUrl" runat="Server" Text=' <%# Eval("Url")%>' Width="300" />
                            </EditItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <ItemStyle Width="4%" Wrap="false" BorderWidth="1" BorderColor="#c0c0c0" />
                            <ItemTemplate>
                                <asp:ImageButton ID="EditButton" runat="server" CommandName="Edit" ImageAlign="absmiddle"
                                    ImageUrl="~/SiteMgt/Images/e.gif" ToolTip="Edit" CausesValidation="false" />
                            </ItemTemplate>
                            <EditItemTemplate>
                                <asp:ValidationSummary ID="ValidationSummary2" runat="server" EnableClientScript="true"
                                    ShowMessageBox="true" ShowSummary="false" ValidationGroup="vg_Edit" />
                                <asp:ImageButton ID="UpdateButton" runat="server" CommandName="Update" ImageAlign="absmiddle"
                                    ImageUrl="~/SiteMgt/Images/u.gif" ToolTip="Update" ValidationGroup="vg_Edit" />&nbsp;&nbsp; <asp:ImageButton ID="CancelButton" runat="server" CommandName="Cancel" ImageAlign="absmiddle"
                                    ImageUrl="~/siteMgt/Images/c.gif" ToolTip="Cancel" CausesValidation="false" />
                            </EditItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField>
                            <ItemStyle Width="4%" BorderWidth="1" BorderColor="#c0c0c0" />
                            <ItemTemplate>
                                <asp:ImageButton ID="DeleteButton" runat="server" CausesValidation="false" CommandName="Delete"
                                    ImageAlign="absmiddle" ImageUrl="~/SiteMgt/Images/d.gif" ToolTip="Delete" />
                                <ajaxToolkit:ConfirmButtonExtender ID="ConfirmButtonExtender1" runat="server" TargetControlID="DeleteButton"
                                    ConfirmText="你确定要删除此菜单栏？">
                                </ajaxToolkit:ConfirmButtonExtender>
                            </ItemTemplate>
                        </asp:TemplateField>
                    </Columns>
                </asp:GridView>

绑定数据：

GridView控件的Edit事件：



GridView控件的Update事件：


GridView控件的取消事件：


GridView控件的删除事件：



看看运行的效果：


开发阶段，由于还没有做到前台，但需要看到效果。Insus.NET想到，使用用户控件来显示。到时开发到前台时，只要拉用户控件至需要网页的地方去即可。创建一个用户控件NavigationBar.ascx：




去用户控件NavigationBar.ascx.cs代码页中，把数据表的呈现至用户控件。



在开发前端时，把此用户控件拉至网页即可。如果网站有使用母版页，只要拉至masterpage去。这个整个站点即共用此导航条。
最终导航条运行时效果：


本演示算是完成了。