将数据库中的数据读入到ArrayList中，并在页面上显示

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Configuration;

using System.Data.SqlClient;

using System.Collections;

using System.Data;

public partial class MyHomework : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

ArrayList list = new ArrayList();

string str = ConfigurationManager.ConnectionStrings["sqlcnn"].ConnectionString;

using (SqlConnection cnn=new SqlConnection(str))

{

cnn.Open();

SqlCommand cmm = cnn.CreateCommand();

cmm.CommandText = "select * from pros";

SqlDataAdapter da = new SqlDataAdapter(cmm);

DataSet ds = new DataSet();

cnn.Close();

da.Fill(ds);

DataTable dt = ds.Tables[0];

foreach (DataRow dr in dt.Rows)

{

list.Add(dr[0].ToString().Trim() + dr[1].ToString().Trim() + dr[2].ToString().Trim() + dr[3].ToString().Trim());

//list.Add(dr[1].ToString().Trim());

//list.Add(dr[2].ToString().Trim());

//list.Add(dr[3].ToString().Trim());

}

this.GridView1.DataSource = list;

this.GridView1.DataBind();

}

}

}