asp.net中把数据库中数据读出来显示到页面

数据库连接：using System;
using SystemCollections;
using SystemCollectionsSpecialized;
using SystemData;
using SystemDataSqlClient;
using SystemConfiguration;namespace DAL
{ //数据库连接字符串
protected static string connectionString="server=;database=data;uid=sa;pwd=sa"; public static string ConnectionString
{
set { connectionString = value; }
get { return connectionString; } } /// <summary>执行查询语句，返回DataSet
/// </summary>
/// <param name="SQLString">查询语句</param>
/// <returns>DataSet</returns>
public static DataSet Query(string SQLString)
{
using (SqlConnection connection = new SqlConnection(connectionString))
{
DataSet ds = new DataSet();
try
{
connectionOpen();
SqlDataAdapter command = new SqlDataAdapter(SQLString, connection);
commandFill(ds, "ds");
}
catch (SystemDataSqlClientSqlException ex)
{
throw new Exception(exMessage);
}
return ds;
}
} 查询类：using System;
using SystemData;
using SystemText;
using SystemDataSqlClient;
using SystemCollections;
using SystemCollectionsGeneric;
using BusinessModels;namespace BusinessSQLServerDAL
{/// <summary>
/// 数据访问类handbook。
/// </summary>
public partial class handbookService
{public handbookService()
{}/// <summary>
/// 获数据列表
/// </summary>
public DataSetGetList()
{
return DbHelperSQLQuery("select from [2002handbook]");
}}} 页面后台cshandbookService bll=new handbookService ();GridView1DataSource=bllGetList();GridView1DataBind();

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