将数据库中的数据读入到ArrayList中，并在页面上显示

最新推荐文章于 2023-08-30 16:07:00 发布

letIgo

最新推荐文章于 2023-08-30 16:07:00 发布

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文章标签：数据库 dataset cmm list object string

本文链接：https://blog.youkuaiyun.com/letIgo/article/details/6941219

版权

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();
        }
    }
}