图片转二进制存储及显示

 public byte[] GetPictureData(string imagepath)
    {
        /**/
        ////根据图片文件的路径使用文件流打开，并保存为byte[] 
        FileStream fs = new FileStream(imagepath, FileMode.Open);//可以是其他重载方法 
        byte[] byData = new byte[fs.Length];
        fs.Read(byData, 0, byData.Length);
        fs.Close();
        return byData;
    }

    private void InserInto()
    {
        string path = this.TextBox1.Text;
        byte[] strem = GetPictureData(path);

        //把图片写到数据库中
        string conn = @"Data Source=.;Initial Catalog=TEST;User ID=sa;Password=123456";
        using (SqlConnection sqlConn = new SqlConnection(conn))
        {
            SqlCommand sqlComm = new SqlCommand();

            sqlConn.Open();
            sqlComm.Connection = sqlConn;
            sqlComm.CommandText = "insert into tubian values('1',@image)";
            sqlComm.CommandType = CommandType.Text;

            sqlComm.Parameters.Add("@image", SqlDbType.Image, strem.Length).Value = strem;

            sqlComm.ExecuteNonQuery();
        }
        
    }

 private void showimager()
    {
        string conn = @"Data Source=.;Initial Catalog=TEST;User ID=sa;Password=123456";
        using (SqlConnection sqlConn = new SqlConnection(conn))
        {
            SqlCommand sqlComm = new SqlCommand();


            sqlConn.Open();
            sqlComm.Connection = sqlConn;
            sqlComm.CommandText = "SELECT TOP 1 * FROM tubian";
            sqlComm.CommandType = CommandType.Text;


            using (SqlDataReader dr = sqlComm.ExecuteReader())
            {
                dr.Read();


                //Response.ContentType = dr["image"].ToString();
                Response.ContentType = "image/JPEG";
                Response.BinaryWrite((byte[])dr["image"]);


            }


        }
    }