【数据库课程设计】主页面（二）

我们注册添加了插入图片功能，那么也在主页面显示图片：

private void pictureBox1_Click(object sender, EventArgs e)
        {
            string uName = Form1.UserName;
            int id = Form1.ID;
            string sql = "select Image from StaffAccount where ID = '" + id + "'";
            string connstr = ConfigurationManager.ConnectionStrings["SQL"].ConnectionString;
            SqlConnection conn = new SqlConnection(connstr);
            SqlCommand cmd = new SqlCommand(sql, conn);

            conn.Open();
            SqlDataReader r = cmd.ExecuteReader();
            r.Read();
            byte[] bs = (byte[])r["Image"];
            MemoryStream ms = new MemoryStream(bs, true);
            ms.Write(bs, 0, bs.Length);
            pictureBox1.Image = new Bitmap(ms, true);
            ms.Dispose();
            conn.Close();
        }

private void panel1_Paint(object sender, PaintEventArgs e)
        {
            display();
        }
        private void display()
        {
            string uName = Form1.UserName;
            int id = Form1.ID;
            string sql = "select Image from StaffAccount where ID = '" + id + "'";
            string connstr = ConfigurationManager.ConnectionStrings["WindowsFormsApplication6.Properties.Settings.staffConnectionString1"].ConnectionString;
            SqlConnection conn = new SqlConnection(connstr);
            SqlCommand cmd = new SqlCommand(sql, conn);

            conn.Open();
            SqlDataReader r = cmd.ExecuteReader();
            r.Read();
            byte[] bs = (byte[])r["Image"];
            MemoryStream ms = new MemoryStream(bs, true);
            ms.Write(bs, 0, bs.Length);
            pictureBox1.Image = new Bitmap(ms, true);
            ms.Dispose();
            conn.Close();
        }