最简单的ASP.NET数据库操作示例源代码

using System;

using System.Collections;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Data.SqlClient;

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

{

protected void Page_Load(object sender, EventArgs e)

{

// SqlConnection con = new SqlConnection("server=dbtalbe;uid=sa;pwd=sa;database=addb;");

//con.Open();

SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["strconn"]);

con.Open();

/*写入数据库

SqlCommand cmd = new SqlCommand("INSERT INTO [Ad_Sort] ([sortname]) VALUES ('首页广告')",con);

cmd.ExecuteNonQuery();

Response.Write("写入成功！");

con.Close();

*/

string strsql = "select * from ad_sort order by id desc";

//读取数据

SqlDataAdapter sda = new SqlDataAdapter(strsql, con);

DataSet ds = new DataSet();

sda.Fill(ds, "ad_sort");

this.hotcommentlist.DataSource = ds;

this.hotcommentlist.DataBind();

//读取单个数据

SqlDataAdapter Set = new SqlDataAdapter(strsql, con);

DataSet Rs = new DataSet();

Set.Fill(Rs,"ad_sort");

//DataRowView mydrview = Rs.Tables["ad_sort"].DefaultView[0];

this.sortname.InnerHtml = Convert.ToString(Rs.Tables["ad_sort"].DefaultView[0].Row[1]);

/*

SqlDataAdapter Set = new SqlDataAdapter(strsql,con);

DataSet Rs = new DataSet();

Set.Fill(Rs,"ad_sort");

this.sortname.InnerHtml = Convert.ToString(Rs.Tables["ad_sort"].DefaultView[0].Row[1]);

this.sortname.InnerHtml = Convert.ToString(Rs.Tables["ad_sort"].DefaultView[0].Row[1]);

*/

Swww.169mnk.comqlCommand cmd = new SqlCommand(strsql, con);

SqlDataReader Res1 = cmd.ExecuteReader();

string listbody="";

listbody += ("<table border=0 ");

listbody+=("<tr><td>ExecuteReader读取数据</td></tr>");

listbody += ("<tr><th>编号</th><th>名称</th></tr>");

while (Res1.Read())

{

listbody += ("<tr>");

listbody += ("<td align='center'>" + Res1["id"].ToString() + "</td>");

listbody += ("<td align='left'>" + Res1["sortname"].ToString() + "</td>");

listbody += ("</tr>");

}

listbody += ("</table>");

list2.InnerHtml = listbody;

Res1.Close();

con.Close();

}

}