05StuList.aspx 加载学生列表（前天代码）
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="05StuList.aspx.cs" Inherits="AspxWebForm._05StuList" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>学员列表</title>
<style type="text/css">
#tbList {
border:1px solid #0094ff;
border-collapse:collapse;
width:500px;
margin:50px auto;
}
#tbList th,td{
border:1px solid #0094ff;
padding:5px;
}
</style>
<script type="text/javascript">
function doDel(id) {
if (confirm("您确定要删除吗？")) {
window.location = "02Del.ashx?id=" + id;
}
}
</script>
</head>
<body>
<table id="tbList">
<tr>
<th>Id</th>
<th>姓名</th>
<th>班级</th>
<th>性别</th>
<th>操作</th>
</tr>
<%=sbHtml.ToString() %> //加载学生信息表
</table>
</body>
</html>
05StuList.aspx.cs加载学生列表（后台代码）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls; namespace AspxWebForm
{
/// <summary>
/// 学员列表
/// </summary>
public partial class _05StuList : System.Web.UI.Page
{
BLL.Students bllStu = new BLL.Students();//创建一个学员对象
protected System.Text.StringBuilder sbHtml = new System.Text.StringBuilder(); protected void Page_Load(object sender, EventArgs e)
{
//1.查询学员数据
IList<MODEL.Students> list = bllStu.GetList();//获取学生列表
//2.遍历数据 生成 html代码行
foreach (MODEL.Students model in list)
{
sbHtml.Append("<tr>");
sbHtml.Append("<td>");
sbHtml.Append(model.Id);
sbHtml.Append("</td>");
sbHtml.Append("<td>");
sbHtml.Append("<a href='07GetClassDetail.ashx?id=" + model.Id + "'>" + model.Name + "</a>");
sbHtml.Append("</td>");
sbHtml.Append("<td>");
sbHtml.Append(model.CIdMODEL.CName);
sbHtml.Append("</td>");
sbHtml.Append("<td>");
sbHtml.Append(model.Gender);
sbHtml.Append("</td>");
sbHtml.Append("<td>");
sbHtml.Append("<a href='javascript:doDel(" + model.Id + ")'>删</a> <a href='06StuModify.aspx?id=" + model.Id + "'>改</a>");
sbHtml.Append("</td>");
sbHtml.Append("</tr>");
}
}
}
BLL业务层
using System;
using System.Collections.Generic;
using System.Text; namespace BLL
{
/// <summary>
/// 作者: liuhaitao
/// 描述: 业务层 -- Students表的业务操作类.
/// 时间:2013/2/4 9:35:25
/// </summary>
public class Students
{
private readonly DAL.Students dal = new DAL.Students(); #region 01.根据ID获得实体对象 +MODEL.Students GetModel(int intId)
/// <summary>
/// 根据ID获得实体对象
/// </summary>
/// <param name="intId">id值</param>
/// <returns>实体对象</returns>
public MODEL.Students GetModel(int intId)
{
return dal.GetModel(intId);
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/// <summary>
/// GET DATA LIST
/// </summary>
public IList<MODEL.Students> GetList()
{
return dal.GetList();
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DAL数据层
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient; namespace DAL
{
/// <summary>
/// Author: liuhaitao
/// Description: 数据层 -- Students的实体类.
/// 创建时间:2013/2/4 9:34:17
/// </summary>
public class Students
{
#region 04.查询数据集合 +IList<MODEL.Students> GetList()
/// <summary>
/// 查询数据集合
/// </summary>
public IList<MODEL.Students> GetList()
{
return GetListByWhere("");
}
#endregion #region 根据where条件查询数据集合 -IList<MODEL.Students> GetListByWhere(string strWhere)
/// <summary>
/// 根据where条件查询数据集合
/// </summary>
private IList<MODEL.Students> GetListByWhere(string strWhere)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select * from Students s inner join Classes c on s.CId=c.Cid where c.CIsDel=0 ");
if (strWhere.Trim() != "")
{
strSql.Append(" and "+strWhere);
}
DataTable dt = DbHelperSQL.GetDataTable(strSql.ToString());
IList<MODEL.Students> list = null;
if (dt.Rows.Count > )
{
list = Table2List(dt);
}
return list;
}
#endregion #region a01.将数据表转换成泛型集合接口+ IList<MODEL.Students> Table2List(DataTable dt)
/// <summary>
/// a01.将数据表转换成泛型集合接口
/// </summary>
/// <param name="dt">数据表对象</param>
/// <returns>泛型集合接口</returns>
public IList<MODEL.Students> Table2List(DataTable dt)
{
List<MODEL.Students> list = null;
if (dt.Rows.Count > )
{
list = new List<MODEL.Students>();
MODEL.Students model = null;
foreach (DataRow dr in dt.Rows)
{
model = new MODEL.Students();
LoadEntityData(model, dr);
list.Add(model);
}
return list;
}
return null;
}
#endregion //用来 加载外键实体数据
DAL.Classes dalClass = new Classes(); #region a04.加载实体数据(将行数据装入实体对象中)-void LoadEntityData(MODEL.BlogArticleCate model, DataRow dr)
/// <summary>
/// 加载实体数据(将行数据装入实体对象中)
/// </summary>
/// <param name="model">实体对象</param>
/// <param name="dr">数据行</param>
private void LoadEntityData(MODEL.Students model, DataRow dr)
{
if (dr.Table.Columns.Contains("Id") && !dr.IsNull("Id"))
{
model.Id = int.Parse(dr["Id"].ToString());
}
if (dr.Table.Columns.Contains("CId") && !dr.IsNull("CId"))
{
model.CId = int.Parse(dr["CId"].ToString());
//如果行中存在 CName 说明 使用了联合查询，那么就将行里的 属于班级表的数据 填充到 model.CIdModel中！
if (dr.Table.Columns.Contains("CName") && !dr.IsNull("CName"))
{
model.CIdMODEL = new MODEL.Classes();//实例化内外键实体对象
dalClass.LoadEntityData(model.CIdMODEL, dr);//为外键实体装载 数据
}
}
model.Name = dr["Name"].ToString();
model.Gender = dr["Gender"].ToString();
if (dr.Table.Columns.Contains("IsDel") && !dr.IsNull("IsDel"))
{
model.IsDel = bool.Parse(dr["IsDel"].ToString());
}
if (dr.Table.Columns.Contains("AddTime") && !dr.IsNull("AddTime"))
{
model.AddTime = DateTime.Parse(dr["AddTime"].ToString());
} }
#endregion }
}