Chapter 3. ASP.NET Reapter数据控件

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.SqlClient;

/// <summary>
/// DataConnection 的摘要说明
/// </summary>
public class DataConnection
{
    private static string connstr = "server=.; database=mydb; user=sa; pwd=ray; ";
    public static SqlConnection Conn
    {
        get { return new SqlConnection (connstr);}
    }
}

//UsersData

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.SqlClient;

/// <summary>
/// UsersData 的摘要说明
/// </summary>
public class UsersData
{
    private SqlConnection _conn;
    private SqlCommand _cmd;
    private SqlDataReader _dr;

    public UsersData()
    {
        _conn = DataConnection.Conn;
        _cmd = _conn.CreateCommand();
    }

    /// <summary>
    /// 查询Users表全部数据
    /// </summary>
    /// <returns></returns>
    public List<Users> SelectAll()
    {
        List<Users> list = new List<Users>();
        _cmd.CommandText = "select *from Users";
        _conn.Open();
        _dr = _cmd.ExecuteReader();
        if (_dr.HasRows)
        {
            while (_dr.Read())
            {                           
                Users data = new Users();
                data.Username = _dr["username"].ToString();
                data.Password = _dr["password"].ToString();
                data.Gender = Convert.ToBoolean(_dr["gender"]);
                data.Nickname = _dr["nickname"].ToString();
                data.Nation = _dr["nation"].ToString();
                data.Area = _dr["area"].ToString();
                data.Birthday = Convert.ToDateTime(_dr["birthday"]);

                list.Add(data);
            }
        }
        _conn.Close();
        return list;
    }
}

//NationData

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.SqlClient;

/// <summary>
/// NationData 的摘要说明
/// </summary>
public class NationData
{
    private SqlConnection _conn;
    private SqlCommand _cmd;
    private SqlDataReader _dr;

    public NationData()
    {
        _conn = DataConnection.Conn;
        _cmd = _conn.CreateCommand();
    }

    /// <summary>
    /// 根据编号查询名族名称
    /// </summary>
    /// <param name="ncode"></param>
    /// <returns></returns>
    public string SelectName(string ncode)
    {
        string name = "";
        _cmd.CommandText = "select Name from Nation where Code=@code";
        _cmd.Parameters.Clear();
        _cmd.Parameters.Add("@code",ncode);
        _conn.Open();
        _dr = _cmd.ExecuteReader();
        if (_dr.HasRows)
        {
            _dr.Read();
            name = _dr[0].ToString();
        }
        _conn.Close();
        return name;
    }
}

//Users

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// Users 的摘要说明
/// </summary>
public class Users
{
    public Users()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }
    private string _username;

    public string Username
    {
        get { return _username; }
        set { _username = value; }
    }
    private string _password;

    public string Password
    {
        get { return _password; }
        set { _password = value; }
    }
    private string _nickname;

    public string Nickname
    {
        get { return _nickname; }
        set { _nickname = value; }
    }
    private bool _gender;

    public bool Gender
    {
        get { return _gender; }
        set { _gender = value; }
    }
    private DateTime _birthday;

    public DateTime Birthday
    {
        get { return _birthday; }
        set { _birthday = value; }
    }
    private string _nation;

    public string Nation
    {
        get { return _nation; }
        set { _nation = value; }
    }
    private string _area;

    public string Area
    {
        get { return _area; }
        set { _area = value; }
    }

    //属性扩展
    public string GenderName
    {
        get { return Gender ? "男" : "女"; }
    }
    public string BirthdayStr
    {
        get { return Birthday.ToString("yyyy年MM月dd日"); }
    }
    public string NationName
    {
        get { return new NationData().SelectName(Nation); }
    }
    public int Age
    {
        get { return Convert.ToInt32(DateTime.Now.Year) - Convert.ToInt32(Birthday.ToString("yyyy")); }
    }

    //红色警告
    public string Red
    {
        get
        {
            string end = "";
            if (GenderName == "女")
            {
                end = "color:Red; font-weight:bold; font-style:initial; font-family:华文行楷;";
            }
            return end;
        }
    }
}


//Nation

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// Nation 的摘要说明
/// </summary>
public class Nation
{
    public Nation()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }

    private string _nationcode;

    public string Nationcode
    {
        get { return _nationcode; }
        set { _nationcode = value; }
    }
    private string _nationname;

    public string Nationname
    {
        get { return _nationname; }
        set { _nationname = value; }
    }
}

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
    <style>
        *
        {
            padding:0px;
            margin:0px;
        }

        #table
        {
            position:absolute;
            left:10%;
            width:80%;
            background-color:purple;
            text-align:center;
            font-family:微软雅黑;
        }

        #tr_head
        {
            color:white;
        }
        
        .tr_body1
        {
            background-color:white;
        }

        .tr_body2
        {
            background-color:purple;
        }
        td
        {
            padding:5px;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Repeater ID="Repeater1" runat="server">
            <HeaderTemplate>
                <table id="table">
                    <tr id="tr_head">
                        <td>用户名</td>
                        <td>密码</td>
                        <td>昵称</td>
                        <td>性别</td>
                        <td>生日</td>
                        <td>年龄</td>
                        <td>地区</td>
                        <td>民族</td>
                    </tr>
            </HeaderTemplate>
            <ItemTemplate>
                <tr class="tr_body1" style="<%# Eval("Red")%>">
                    <td><%#Eval("Username") %></td>
                    <td><%#Eval("Password") %></td>
                    <td><%#Eval("Nickname") %></td>
                    <td><%#Eval("GenderName") %></td>
                    <td><%#Eval("BirthdayStr") %></td>
                    <td><%#Eval("Age")+"岁" %></td>
                    <td><%#Eval("Area") %></td>
                    <td><%#Eval("NationName") %></td>
                </tr>
            </ItemTemplate>
            <%--<AlternatingItemTemplate>
                <tr class="tr_body2" style="<%# Eval("Red")%>">
                    <td><%#Eval("Username") %></td>
                    <td><%#Eval("Password") %></td>
                    <td><%#Eval("Nickname") %></td>
                    <td><%#Eval("GenderName") %></td>
                    <td><%#Eval("BirthdayStr") %></td>
                    <td><%#Eval("Age") %></td>
                    <td><%#Eval("Area") %></td>
                    <td><%#Eval("NationName") %></td>
                </tr>
            </AlternatingItemTemplate>--%>
            <FooterTemplate>
                </table>
            </FooterTemplate>
        </asp:Repeater>
    </form>
</body>
</html>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            List<Users> list = new UsersData().SelectAll();
            Repeater1.DataSource = list;
            Repeater1.DataBind();
        }
    }
}

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