SqlConnection con= new SqlConnection("server=serverName;database=数据库;uid=sa;pwd=密码;"); con.Open(); DataTable dt = new DataTable(); string sql="select * from 表"; SqlDataAdapter da = new SqlDataAdapter(sql,con); da.Fill(dt); this.gridview1.DataSource=dt; this.gridview1.DataBind();/// 不要最后一句。。你是window form程序就不要这句