ASP.NET WEB项目中GridView与Repeater数据绑定控件的用法

DROP TABLE [dbo].[users]
GO
CREATE TABLE [dbo].[users] (
[id] int NOT NULL IDENTITY(1,1) ,
[userName] varchar(20) NOT NULL ,
[sex] bit NOT NULL ,
[age] int NOT NULL ,
[introduce] varchar(200) NOT NULL 
)
GO
DBCC CHECKIDENT(N'[dbo].[users]', RESEED, 3)
GO
-- ----------------------------
-- Records of users
-- ----------------------------
SET IDENTITY_INSERT [dbo].[users] ON
GO
INSERT INTO [dbo].[users] ([id], [userName], [sex], [age], [introduce]) VALUES (N'1', N'王语嫣', N'0', N'16', N'琅嬛福地，神仙姐姐。');
GO
INSERT INTO [dbo].[users] ([id], [userName], [sex], [age], [introduce]) VALUES (N'2', N'小龙女', N'0', N'18', N'终南山下，活死人墓。冰山美人，绝世江湖。');
GO
INSERT INTO [dbo].[users] ([id], [userName], [sex], [age], [introduce]) VALUES (N'3', N'赵灵儿', N'0', N'15', N'灵蛇岛等待逍遥哥哥的小姑娘。');
GO
SET IDENTITY_INSERT [dbo].[users] OFF
GO
-- ----------------------------
-- Indexes structure for table users
-- ----------------------------
-- ----------------------------
-- Primary Key structure for table [dbo].[users]
-- ----------------------------
ALTER TABLE [dbo].[users] ADD PRIMARY KEY ([id])
GO

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
namespace Demo_1
{
    public class DBHelper
    {
        private static string url = "Data Source=.;Initial Catalog=mytest;Integrated Security=True";
        //账密方式
        //private static string url = "server=.;database=girl1804;uid=sa;pwd=root";
        /// <summary>
        /// 获取查询信息
        /// </summary>
        /// <param name="sql"></param>
        /// <returns></returns>
        public static DataTable Query(string sql)
        {
            SqlConnection conn = new SqlConnection(url);
            SqlDataAdapter sdap = new SqlDataAdapter(sql, conn);
            DataSet ds = new DataSet();
            sdap.Fill(ds);
            return ds.Tables[0];
        }
        /// <summary>
        /// 修改
        /// </summary>
        /// <param name="sql"></param>
        /// <returns></returns>
        public static int ExecuteNonQuery(string sql)
        {
            SqlConnection conn = new SqlConnection(url);
            conn.Open();
            SqlCommand cmd = new SqlCommand(sql, conn);
            int rows = cmd.ExecuteNonQuery();
            conn.Close();
            return rows;
        }
        /// <summary>
        /// 存储过程·一般用不到，大型项目严禁使用
        /// </summary>
        /// <param name="proName"></param>
        /// <param name="paras"></param>
        /// <returns></returns>
        public static bool ExcuteProcedure(string proName, SqlParameter[] paras)
        {
            SqlConnection conn = new SqlConnection(url);
            conn.Open();
            SqlCommand cmd = new SqlCommand(proName, conn);
            cmd.CommandType = CommandType.StoredProcedure;
            for (int i = 0; i < paras.Length; i++)
            {
                cmd.Parameters.Add(paras[i]);
            }
            int rows = cmd.ExecuteNonQuery();
            conn.Close();
            return rows > 0;
        }
    }
}

<asp:GridView runat="server" ID="gridView" AutoGenerateColumns="false">
     <Columns>
        <asp:BoundField DataField="id" HeaderText="编号"/>
        <asp:BoundField DataField="userName" HeaderText="昵称"/>
        <asp:BoundField DataField="sex" HeaderText="性别"/>
        <asp:BoundField DataField="age" HeaderText="年龄"/>
        <asp:BoundField DataField="introduce" HeaderText="简介"/>
    </Columns>
</asp:GridView>

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack) {
        string sql = "select * from users";
        this.gridView.DataSource = DBHelper.Query(sql);
        this.gridView.DataBind();
    }
}

<link href="Content/bootstrap.css" rel="stylesheet" />
<table class="table table-bordered table-hover">
    <tr>
        <th>编号</th>
        <th>昵称</th>
        <th>性别</th>
        <th>年龄</th>
        <th>简介</th>
    </tr>
    <asp:Repeater runat="server" ID="repeater">
        <ItemTemplate>
            <tr>
                <td><%# Eval("id") %></td>
                <td><%# Eval("userName") %></td>
                <td><%# Eval("sex") %></td>
                <td><%# Eval("age") %></td>
                <td><%# Eval("introduce") %></td>
            </tr>
        </ItemTemplate>
    </asp:Repeater>
</table>

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        string sql = "select * from users";
        this.repeater.DataSource = DBHelper.Query(sql);
        this.repeater.DataBind();
    }
}