今天主要做的事，有关数据库的读取，排序，显示的问题。

代码如下：

SqlConnection mycon = GetConnection();

        mycon.Open();

        string sqlStr = "select _Author,_Title,_PubTime ,_Description,_Rank,_Catagory from _TableDoc order by _Rank DESC";

        SqlCommand mycomd = new SqlCommand(sqlStr, mycon);

        SqlDataReader sdr = mycomd.ExecuteReader();

        while (sdr.Read())

        {

            downloadrank temp = new downloadrank();

            temp.Author = sdr[0].ToString();

            temp.Title = sdr[1].ToString();

            temp.PubTime = sdr[2].ToString();

            temp.Description = sdr[3].ToString();

            temp.Rank = Convert.ToInt32(sdr[4].ToString());

            temp.Catagory=sdr[5].ToString();

            DownloadRank.Add(temp);

        }

        sdr.Close();

        mycon.Close();

 

其中：

public SqlConnection GetConnection()

    {

        string sqlstr = "Server=(local);User id=sa;Pwd=10061177;DataBase=BigHouse";

        SqlConnection con = new SqlConnection(sqlstr);

        return con;

    }